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Contents of February 2007

COMMENT
Public participation

UPFRONT
News and events

CITY VISIT
Sasolburg: a 1950s industrial town

ENVIRONMENTAL PLANNING AND DESIGN
An activity street in the making

ENVIRONMENTAL PLANNING AND DESIGN
Alternative design solutions for low-income communities

WASTE AND POLLUTION MANAGEMENT
Incinerate and recycle: waste management in the Kruger National Park

PLANNING PERSONALITY
Tasneem Essop - the ‘bush planner’

BATTLE OF THE 'BURBS
Potchefstroom: Oewersig v Miederpark

INSPIRATION
Private intervention for public good

INSULT
Park as dumping site

TREE OF THE ISSUE
Celtis sinensis

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COMMENT

Public participation
The Urban Green File editorial team often engages in lively discussions about our readers – we want to add real value to your business. Probably the best collective description we have arrived at (not that we would ever be as presumptuous as to ‘pigeonhole’ anyone) is that our role is to provide insightful and interesting articles to the ‘custodians of the urban environment’.

While labelling a group of people ‘custodians’ might seem important to some people, practitioners out in the field know that this is not a glamorous title. We work in an environment that is actually owned by everyone so everyone (and his dog) has an opinion on the management and planning of the urban environment.

Ours is a very public profession. And this begs the questions:
           Why are we not out there engaging in the public arena?
           Why are we not speaking out about the 2010 debate on our cities, for instance?

Voicing opinions in a niche publication such as Urban Green File is a good start (and we thank you for your letters – positive and negative) but we should also speak out in our community and national newspapers, and on television too.

Everybody else is expressing opinions on the direction our urban environments should take and where the money should be spent. Isn’t it time that ‘people in the know’ also engage in the public debate?

I am very excited about publishing the mix of articles in this edition. They are truly representative in terms of geography (from Potchefstroom to Port Elizabeth) and detail (from provincial planning to the design of an ‘activity street’).

Enjoy. And please let us know what you think.

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UPFRONT

Public art
The ‘trees’ on Juta Street do not warrant a deliberate visit on their own but that is perhaps the role of public art: it should beautify public space by blending into its surroundings rather than dominate the environment.

The metal tree-like sculptures in Braamfontein are part of a project that was initiated and funded by the Johannesburg Development Agency in 2005.

The design of these trees was born of a series of conceptual design workshops with artistic director Claire Regnard.

Along with the Trinity Session, Regnard conducted the workshops with a group of students from the Imbali Visual Literacy Project at the Bus Factory in Newtown.

Former South African Planning Institute (SAPI) president Christine Platt was elected as president of the Commonwealth Association of Planners (CAP) in October 2006.

CAP plays an important role in the promotion of dialogue between planners from the Commonwealth and the rest of the world. Platt’s election is a big boost for the planning profession in South Africa and the rest of the continent.

South African honours
Former South African Planning Institute (SAPI) president Christine Platt was elected as president of the Commonwealth Association of Planners (CAP) in October 2006.

CAP plays an important role in the promotion of dialogue between planners from the Commonwealth and the rest of the world. Platt’s election is a big boost for the planning profession in South Africa and the rest of the continent.

Second Holcim Awards
The Holcim Foundation will launch its second awards competition for sustainable construction projects and hold an international symposium dedicated to ‘Urban_Trans_Formation’ in 2007. A commemorative book on the first Holcim Awards competition and a booklet on the target issues for sustainable construction have been published. This will have practical examples of sustainable construction.

The second cycle of the Holcim Awards competition will open on June 1 2007 and remain open until February 29 2008 for all construction projects in an advanced stage of design.

Construction may not have begun before June 1 2007. The US$2-million competition celebrates innovative, future-oriented and tangible sustainable construction projects around the globe.

Mandela corridor progresses
Plans for the Mandela Development Corridor were first announced in 2002. The project was expected to realize R1,8-billion a year for the inner-city area as well as create approximately 9 000 job opportunities.

The corridor was initially a government-headed project of the City of Tshwane Metropolitan Municipality.

Even though the rights have been sold to a private company, called the Mandela Development Corridor, the project is still one of the City of Tshwane mayor’s ‘special projects’. Inner city urban renewal and revival is the core focus of the privately-owned, black-empowered company. It has secured a sole and exclusive mandate from the City of Tshwane until 2013 to manage and facilitate new developments in the Mandela Development Corridor by upgrading approximately 250 000 m² of space.

Nelson Mandela Drive and its immediate surroundings form an important corridor with two main purposes as a bridge and a gateway. It serves as a bridge between the inner city of Tshwane and the residential areas of Sunnyside and Arcadia. The corridor has also been upgraded to a dual carriageway and is now the main gateway into the city of Tshwane.

Memory & Connection
In 2003, during excavations for a new commercial development on Prestwich Street in Green Point, Cape Town, about 2 000 unmarked graves were discovered. The subsequent public outcry brought construction on the project to a halt and a lengthy process began to find an appropriate solution to the re-interment of the human remains. A process was launched to find an appropriate site for the reburial of the bones in a memorial garden within the Green Point area.

The memorial site will form part of a network of spaces that is intended to revitalise the pedestrian network, link with elements of memory and help to positively change the public realm of the city.

The Prestwich site is located between the Cape Town CBD and Green Point where the geometry of the city’s grid undergoes an interesting shift. A memorial garden (Phase 3) is planned for the space in the foreground.

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CITY VISIT

1950s industrial town: is the plan working?
Although commonly associated with the petro-chemical industry, Sasolburg surprisingly has a rich planning history and green heritage.

The northern Free State town of Sasolburg is located in the Metsimaholo (‘place with a lot of water’) Local Municipality. Although famed for Sasol’s oil-from-coal operations, the town also has wide, tree-lined streets and green belts have been constructed.

South Africa owes a large part of its history to the discovery of minerals – to a large extent responsible for the location of many inland towns and a number of South African towns have been influenced by the New Town movement that originated in Britain in response to the conditions caused by the Industrial Revolution. The designs of ‘new towns’ were aimed at improving conditions for the working class.

Sasolburg is an example of a South African new town. So are Vanderbijlpark, Welkom, Carletonville and Stilfontein.

The South African new town was – to all intents and purposes – designed as a ‘company town’ and Sasolburg is no exception.

The new town of Sasol
Sasolburg was planned in 1951 to serve the world’s first oil-from-coal complex (Sasol). It was planned to serve as the residential and social center for people who administered and operated the Sasol plant and its subsidiary companies.

Max Kirchhofer, a Swiss-born architect and planner, was appointed as Sasol’s consulting architect.

The aims identified by Kirchhofer were:
           The establishment of a system of main roads, which permitted the free movement of traffic without interfering with beneficial occupation of the land.
           The layout of the residential areas in selfcontained units.
           The creation of a coherent urban scene, wherever possible, in the residential areas and certainly in the town centre.

One of the distinguishing traits of Sasolburg is the neighbourhood cell. Mark Oranje, well-known planning academic who also grew up in Sasolburg, told Urban Green File that each of these cells had to have its own primary school, local shopping centre and recreation club – separated from other cells by main traffic routes and thus kept safe from “the destructive force of the motor vehicle without restraining its usefulness”. Oranje reflects on this rather negative view of the motor car as being quite ironic, given that Sasolburg was developed to facilitate the production of fuel for motor cars.

Today
A lot has been written about ‘new towns’, the most frequent criticism being the fact that these towns were often ‘over-planned’. That might be a very important lesson for South African town planning of today: by over-regulating design and/or management based on the doctrine of the day, you might be running the risk of closing certain doors to the future. On the other hand, Sasolburg’s green heritage is a direct result of people and institutions that took their responsibility as custodians of the urban environment very seriously and the town would have been all the poorer in character if this was not the case.

Still a company town?
Although Sasol does not own as much property as it used to, it still plays an important role in the economic well-being of the town of Sasolburg, according to Reatile Ralepeli, assistant manager for local economic development at Metsimaholo Local Municipality. Sasol has now established a major research and development centre with the Vaal University of Technology. And the Chem City industrial development project is marketed nationally and internationally as part of Sasol’s effort to diversify its industries from noxious to the incorporation of light industries.

Chem City will be known officially as a world-class, small-tonnage, eco-chemical park.

Coal mining in the area is also expected to continue to provide employment for years to come and rumour has it that the chief executive officer of an ‘ethanol project’, with an estimated development value of R700-million, approached the municipality in 2006 seeking available industrial land.

Although the local municipality of Metsimaholo is officially part of the Free State, the demarcation has been a contentious issue, specifically with regard to regional development of the Vaal Triangle.

Leon van Rensburg, a town planner in private practice in the area, argued that Sasolburg, Vereeniging and Vanderbijlpark have very strong functional linkages, which are evident in the shopping patterns of the residents of these towns. Sometimes this is not taken into consideration in planning exercises, especially because Sasolburg falls within a different provincial administration.

Need for land
According to municipal town planner Lipalesa Thaanyane, one of the major challenges, from a town planning point of view, is the availability of land for future development. The establishment of about 3 500 township erven on the farm Amelia is now underway. Another 2 000 erven will be developed at Mooidraai, close to Zamdela.

Van Rensburg does not entirely agree with Thaanyane. According to him, the authorities are very reluctant to approve any sub-divisions or development applications in the existing Sasolburg townships.

Maybe it is not so much about the availability of land but more about the absence of an enabling environment.

Green by design
A first-time visitor to Sasolburg may not only be surprised by the vastness of the chemical plant and the mining activities in and around the town but also the broad boulevard-like streets and the lush, green residential areas. Thousands of trees have been planted in Sasolburg. Kirchhofer’s plans indicated the exact location and type of tree. Parks were designed as a green system with pedestrian and cycle paths.

Oranje told of initial concerns, raised by the 1951 Townships Board of the former Orange Free State, about the park layout.

It argued that the parks would be a burden on the local authority and possibly become places where vagrants would converge. More than 50 years later, these fears have been realised. The municipality is struggling with the upkeep of the parks and, despite being illuminated in the early 1980s, the parks are now regarded as ‘unsafe’.

However the trees and open spaces of Sasolburg imbue the town with an ambience not many industrial towns enjoy.

A further point of apparent contention is development on the banks of the Vaal River. According to Van Rensburg, the authorities are very reluctant to allow any development – more so than they are in other towns like Vanderbijlpark.

The development of a multi-million-rand golf estate, Heron Banks, on the banks of the Vaal River has been approved. Among other environmentally-beneficial aspects, it includes the rehabilitation of four wetlands. Construction is due to begin in 2007.

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ENVIRONMENTAL PLANNING AND DESIGN

An activity in the making

Can urban design help transform an ordinary township street into a vibrant ‘activity street’?

On the south-western border of Tshwane Olievenhoutbosch Ext 13 lies to the west of the R55 and has good main access roads. At the beginning of 2006, Minister of Housing Lindiwe Sisulu launched a R400-million housing project in the Olievenhoutbosch area.

It has also been in the news for xenophobic clashes over housing and service delivery.

The City of Tshwane metropolitan municipality has secured extensive infrastructural investment in the area over the past few years.

The Legong Street development forms part of the Tsosoloso programme, which is a planning initiative taking off across Tshwane. Launched in 2006, the programme calls for a new approach to city building.

Mono-functional is out and extroverted, multi-purpose structures are in. Spatial integration aims to take cognisance of existing pedestrian and public transport needs and design is to take place around these.

The focus of the programme is on neglected areas that can benefit most from this type of revitalisation. It is an inter-departmental project within the municipality.

The original idea
When the project was first conceptualised in 2000, Legong Street was identified as a major entrance route to Olievenhoutbosch and therefore had the potential for future concentration of formal businesses and informal activities. The original design team also had the vision of creating an identity for Olievenhoutbosch by developing a focal point with a unique sense of place, an area that would instill pride and a sense of belonging to residents.

An activity street is one where shops and other businesses are situated, attracting people from the neighbourhood. The erven on both sides of Legong Street are all municipal-owned and have been reserved for this development.

Two ‘anchors’
The established community center towards the western side of Legong Street and the existing shopping centre on the eastern side were ideal to serve as two ‘anchors’ for the proposed activity street. Although the two parks in the vicinity do not form part of the ‘activity street’, they had an impact on the locality.

Following on from the first phase of work, 2006 has seen the completion of development along the northern side of the street together with the creation of a square designed to function not only as a trading area for informal traders but as a public open space.

Planning and Phase 1
In 2000, architects and urban designers Holm Jordaan and Partners were tasked with drafting guidelines for the street development.

The guidelines made provision for the supply of services to erven along both sides of the street to make it attractive to set up small businesses. The guidelines also made recommendations for paving, planting of trees and suggested structures.

The first phase of development in Legong Street took place in the 2003/4 financial year. Although it was intended to develop both sides of the street, there was only enough funding to complete the supply of services on both sides – the remainder of work was only completed on the southern side of the street: paving of the sidewalk, planting of street trees and demarcation of parking bays, which are parallel to the street, on the paved area, which is suitable for low volumes of parking, and concrete bollards keep vehicles off erven.

Phase 2
This second phase of the project included the development of the northern side of the street and a public square as part of the 2005/6 financial year budget. Before Phase 2 was launched, a committee was set up for public participation. One of the committee’s recommendations was the provision of safe and convenient taxi stops along Legong Street. The design made provision for four stops and shelters, complementary to the style of the square.

Execution of the project
The project management and design were done completely in-house by the Streetscape Management design team.

Transportation engineer Corli Havenga was appointed in July 2005 to oversee the work.

In the months that followed, the engineer was consulted on the design. The tender that went out in December 2005 was for 2 000 m² of concrete brick paving, concrete kerbing, an informal market area with special features and trading structures, pedestrian lighting and the planting of trees. A gentle slope from the north to the south, coupled with recreational facilities in the dip below Legong Street, was a factor in deciding the location of the market square.

Construction began in April 2006 by a joint venture between two contractors: Gaobakwe Trading and Nyakale’s Works. In keeping with the Expanded Public Works Programme, local labour and labour-intensive methods were used. This project had a Construction Industry Development Board rating 2 with an original budget of R2,5-million (R1,6-million was spent). The work was completed on time at the end of June 2006.

Activity in the street
On the day Urban Green File visited, there was a handful of informal traders dotted along the roadside. Week-ends would probably be busier. An audit of existing informal traders was done prior to formalising the street design – to ensure that priority was given to existing traders when provision has been made for them.

Design of the square
The square that formed part of the second phase of the project is situated just off-centre along the upgraded length of Legong Street, lying to the western side, closer to the community centre.

Umnama Street, to the south of Legong Street, forms the southern boundary of the square. It occupies two erven. The layout of the square shows two rows of trading stalls, which lie asymmetrically through the centre space.

Preshant Ramjee, a streetscape design architect with the streetscape management department of the City of Tshwane, was responsible for the design of the square. He explained to Urban Green File a multi-functional public space was desired – out in the open. In conjunction with the local economic development division, it was decided to concentrate all informal traders in one location to facilitate traders, specifically water supply and refuse removal.

A distinctive feature of the square are the two- and three-stepped ‘ziggurats’, which are truncated, pyramidal structures with each step slightly rotated. Put simply, these are ‘podium areas’ (according to the plan view). And the community is using these structures for their intended purpose, having erected a gazebo and regularly holding meetings there. These seating and podium areas are plastered brick and have been painted in bold, eye-catching colours by one of the local artists.

The trading stalls show clever use of gum poles and polycarbonate sheeting. Stalls have been sized to fit an inexpensive, standard hollow-core door as a counter top. However, the Local Economic Development Division eventually decided to provide the traders with standard foldable metal tables which also fit nicely in between the gum poles. Thatching laths of 38 mm diameter have been used to form a slatted roof with transparent, polycarbonate roof sheeting attached to it as a rain shelter that allows light through.

Trees
Two types of trees have been planted around the sides of the square: Erythrina lysistimon (‘coral tree’) around the northern and southern edges and Kirkia acuminata (‘white syringa’) along the western and eastern perimeters. A single, large tree was planted inside the square – chosen for its ability to provide an umbrella-like canopy of shade when full-grown – the Sieberiana var. woodii (‘paper bark’).

As this project forms part of the Tsosoloso programme, attention was paid to issues such as multi-functionality and a contextual response to challenges.

Taxi stops
Four taxi stops and shelters were an additional feature of the second phase. Previously, taxis used to stop at street corners – illegal and unsafe. While this is still a problem, the situation has improved since convenient stops have been located along this main street.

The shelters have the same gum pole construction as the trading stalls in the square, which blends beautifully, particularly as two of the shelters are just outside the square (on opposite sides of the road). The extra length of the gum poles above the roof of the shelters was originally going to be shortened, but the finished effect was eye-catching and the decision was taken to leave the poles as they were. An interesting challenge was how to demarcate the taxi stop on a paved parking sidewalk. As Jaksa Barbir, deputy manager of Streetscape Design, showed Urban Green File, a simple solution of using a double row of concrete kerbing does the job.

Not in isolation
A positive aspect of the design is that it the selection of the site for the public square was informed by current pedestrian patterns and specifically Rethabile Park, a well-established park directly south of the square.

The City of Tshwane has also developed the nearby Cycad Crescent Park. The community is therefore served on various levels.

The nearby housing development in Olievenhoutbosch Extension 36 will also have a significant impact on the Legong Street development. It will comprise almost 5 500 units, partly for sale, rental and subsidised. Construction began towards the end of 2006 on this 180 ha ministerial project, which will accommodate three schools, two clinics, a public open space, religious facilities and industrial and commercial development: a node that will definitely interact with the Legong Street activity spine.

The future
A lot of thinking and time has gone into the detail design of Legong Street and specifically the new public square. But on Urban Green File’s visit to the street one cannot help to notice that there is not all that much activity in the activity street. It might be busier over the weekends or during peak hour, but still, the image that most people have of an activity street is one with lots of pedestrians and many many stalls and shopping options for consumers.

According to Ramjee the activity will hopefully be introduced as soon as Tshwane’s Local Economic Development Department allocated the various stalls to informal traders. Another stumbling block is definitely the municipal-owned land along Legong Street. Although regarded as a positive aspect for intervention as one does not have to deal with expropriation and the like, it becomes a stumbling block if it lies dormant. Council apparently has plans of selling the land off, but until something happens on these large strips of land along the street, it is very unlikely that a real activity street is to be established.

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ENVIRONMENTAL PLANNING AND DESIGN

Alternative design solutions for low-income communities

A caravan park is transformed into a high-density but high-quality place through innovative design.

Like many others, the poorer communities in large parts of Port Elizabeth are faced with the hardships of the less fortunate.

Long hours of travel to places of work, poor living conditions and enter finances are some of the challenges they try to overcome on a daily basis. But, for the people of Sakhasonke (Xhosa for ‘we build together’) Village, life is a lot rosier after the launch of this novel low-cost housing initiative, which was conceptualized and driven by the GM South Africa Foundation.

The project began in 2001 when the foundation purchased the insolvent 4,4 ha Walmer Caravan Park using bridging finance of R126 000 in order to refine an innovative new low-income housing model it had piloted in the Missionvale area between 1998 and 2000.

Sakhasonke Village is located on Victoria Drive in Gqebera (previously known as Walmer Township) near the CBD of Port Elizabeth.

The Walmer Housing Development Trust was established in September 2003 to oversee the development of the village. Lance del Monte of Metroplan Town and Regional Planners, which planned and designed Missionvale and Sakhasonke on behalf of the GMSA Foundation, was appointed as project co-ordinator.

Sakhasonke is a fully government-subsidised housing project developed by the trust in partnership with other agencies including the Nelson Mandela Bay Municipality, the Department of Housing and Local Government, the Urban Services Group and the Nelson Mandela Metropolitan University.

Community center
The former caravan park’s old ablution block was first used as a site office and later converted into a community enter with a crèche and pre-school.

Parking
The houses next to the main road leading into the village have parking bays for residents to park their own cars or those of their visitors.

High density, shared space and cost-effective services transform a community

By carefully designing public and private spaces, gardens and structures, a high-density development can become a high-quality living environment.

The designers were motivated to demonstrate that densification is a strong instrument for city reintegration and sustainable human settlements. The idea was to develop a unique housing model, which would have nationwide replicability.

Public spaces
The houses are accessed by 1,4 m brickpaved pathways, which lead into large squares of green public spaces (planted with grass and trees), which creates a feeling of enclosure to the complex. The main road leading into the village also has premixed parking bays for residents’ and visitor parking.

Street spaces
The average erf size is 72 m² (6 m x 12 m). The houses were generally constructed 1,5 m to 2 m from the plot front. This allows just enough space for residents to make an entrance garden.

The houses are in a duplex or triplex configuration and are spaced around courtyards, which allows sunlight into the complex and creates pleasant areas for residents to mingle.

Community gardens
The site itself slopes so, instead of extensive earthworks, one corner was converted into an urban agricultural garden to supply the community with fresh produce.

Ability to extend houses
The overall design of the units was based on maximising efficiency by finding a balance between creating the maximum amount of usable space relative to the cost. The houses have a total floor area of 46 m² and the rest of the erf leaves another 24 m² of space for future extension.

Density
The key concept of the development is density: people living closer together reduce the cost of services and the community’s environmental footprint. Full services are available – each erf has water, sewerage and electricity. Because of the close proximity of the units to each other, the installation cost of this infrastructure was far less than that of relatively conventional housing schemes.

The Sakhasonke project won the South African Housing Foundation’s 2006 award for the top national project with housing units costing below R80 000. The units, including land, servicing, construction and legal costs, were delivered for R30 000.

Re-thinking old paradigms
The design themes of the village focus on density and community. The GMSA Foundation’s experiences in Missionvale were combined with legislation and the needs of the Gqebera community to establish this development.

The Development Facilitation Act refers to ‘compact, integrated and mixed use developments’ and the Land Use Management Bill calls for ‘densification of existing residential areas’ to reduce urban sprawl.

The residents of Sakhasonke fall under the low-income bracket (less than R1 500 per month). Those who are employed work in other much more affluent communities of Port Elizabeth. As they don’t have much, the reduction of their travel costs affords them more disposable income that could be used for maintenance and the payment of municipal services. The Missionvale project made it clear that low earners must have enough disposable income to afford to pay for these services. “It would be great to give everyone houses but the successful integration of social and technical aspects is paramount,” Del Monte explained.

“The denser development greatly reduces the cost of services compared to the traditional ‘matchbox house’ layout and therefore allows more people to afford it.”

Community issues had to be taken into account with the design as close living conditions can sometimes result in social friction. Great emphasis was therefore placed on the spatial development and the ‘feel’ of the complex to create a safe and ‘open’ atmosphere. Elevated surveillance from the double-storey buildings creates a safe atmosphere where people can relax in their own defendable space. The atmosphere was further enhanced by natural symmetry in the layout of the village as well as the overall cubic architecture of the buildings.

Density and community are established design concepts that Del Monte has succeeded in fusing successfully with the needs of the local population. Khanyiswa Madolwana of No 45 told Urban Green File her story. Before she moved to Sakhasonke, she lived in Motherwell. She has been working in Walmer as a domestic worker for 20 years. To be in time for work at 07:30, she would have to leave home at 05:00. She earns R900 a month and spent R315 a month on transport. “I felt that I was working for transport,” she said. “I now walk to work.” She leaves for work at 07:00 and gets home by 17:00. “I now also have extra time and money for my family,” she added. “Life is a little easier now.”

Detail design
Being an abandoned caravan park, the site contained a rundown and vandalized building, which was upgraded and incorporated in the design of Sakhasonke. The existing ablution block was first used as a site office and then later converted into a crèche and community centre. The 2,1 m-high walls surrounding the site were restored.

The duplex and triplex configuration has proved to be a highly effective way to save on material and building costs by allowing units to share communal walls and services.

The cubic design was easy to build and a little roof over the entrance makes the houses inviting.

Each unit has two floors of 23 m², and it is plastered and painted on the inside and outside. The open plan ground floor comprises a kitchen fitted with a sink, a lounge area as well as an enclosed shower and toilet. Seven 19 mm-thick shutterply boards provide the roofing above the ground floor and the flooring for the top floor. The dimensions for the units were determined by the size of the shutterply boards, which are bought commercially so as to reduce wastage and installation time. The ground floor is connected to the first by means of a timber staircase situated in the corner opposite the main entrance. The first floor can be partitioned to provide two sleeping rooms – each with an insulated ceiling and window.

Much of the design of the houses was based on the standard sizes of the materials to be used. The shutterply boards as well as the pitch of the roof are examples of how this saved money and time. The double-storey and duplex approach also contributed greatly to the overall cost effectiveness of the development.

The density debate
It is important to remember that Sakhasonke is government’s low-cost housing development. This means that it was done with the same subsidy of R30 000 per unit, and with the same restrictions imposed on all other low-cost housing developments throughout South Africa. To appreciate the significance of the project, the developers compared it to more traditional development options. The matchbox-type development scheme, which is still being widely used as the standard by developers, is shown in the table in order to quantify the differences between these two approaches to density.

Community participation
Most new development projects place strong emphasis on community participation, skills transfer and job creation. Sakhasonke did not lack these crucial aspects. Local residents were consulted throughout the process and were intimately involved in the planning and construction of the development.

The Gqebera community was notified of the planned development by means of flyers and a series of general meetings. The concept was carefully explained using models of the planned units and the overall development. Various aspects associated with the responsibilities of home owners were discussed with prospective residents.

Following a positive response to the show house, which was built in 2002, the Urban Services Group and Metroplan facilitated the selection of beneficiaries for submission to provincial approval.

Teams of local labourers were also sent to a municipal skills training centre in Port Elizabeth to prepare them for the construction of the village. A building manager and quality controller from the Nelson Mandela Metropolitan University’s Institute of Building Research and Support supervised the construction work on site. Building materials were bought in bulk and stored in the old ablution block for the duration of the construction period. Each builder was given a ‘clip card’ that specified his allotted material for the specific job. These cards ensured that each builder kept within the tight budget and that stock was controlled and wastage was prevented.

Innovative housing model
Community support programmes and other activities, like the creation of a craft market and the optimisation of urban vegetable gardens, are well-established to ensure the sustainability of the project.

According to Del Monte, many lessons were learned and much experience gained. This will in turn create other, perhaps better and more efficient, human settlements in future.

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WASTE AND POLLUTION MANAGEMENT

Incinerate & recycle speedy removal of waste
Waste management solutions implemented by the Kruger National Park can serve an as example for remote or small municipalities.

Waste is a feature of all habitations and disposing of it poses a problem for all communities.

Although the Kruger National Park has a largely transient population, with most visitors spending less than two days in any camp, it has a serious problem with the disposal of waste that is generated by the residential population (game park personnel) and visitors. The park has a situation peculiar to game parks as waste does not only pose the threat of environmental pollution and threaten health, it also poses a danger to wildlife.

Most of the waste generated by visitors to the park includes food packaging or beverage containers and, as these items have a large plastics content, waste presents a specific threat to the wildlife in the park. “Plastic bottles and bags are the equivalent of land mines as far as wildlife is concerned,” Ben du Plessis, manager: waste and water for the Kruger National Park, told Urban Green File. “If an animal swallows a plastic bag, it means certain death,” he said. Plastics and other non-degradable materials can block watercourses, interfere with water holes and find their way into birds’ nests, among other places.

Animals can also be injured by discarded beverage cans and broken glass bottles.

Litter of any form detracts from the visitors’ experience of the park so regular clean-up campaigns are conducted to remove litter that accumulates outside the camps. Park personnel are encouraged to pick up or collect litter either in the camps or out in the park itself. In spite of public awareness campaigns, litter still collects at view sites in the park. The nine rest camps, four picnic spots and numerous observation points, and temporary camps all produce waste. In addition to normal domestic waste, toxic and other dangerous waste is produced by vehicle workshops, kitchens, building and maintenance operations, pest control (poisons), water treatment and gardening operations.

New approach
Prior to 1991, waste handling was the responsibility of the conservation section. In 1991, a decision was made to transfer waste to the technical section.

Waste is handled within the park as most camp sites are not near legal solid waste and landfill sites, the cost of transporting waste to these sites would be prohibitive, and there is the risk of waste spills in the park. Special vehicles would have to be used to ensure that waste did not escape during transport or the waste would have to be pre-processed.

Traditionally, waste disposal was done in burning, open pits, according to Du Plessis. “Landfill sites were never considered an option as the leach produced is 200 times more toxic than raw sewage.

Groundwater can become contaminated as open water flows through catchments containing a waste dump. This is particularly important in the Kruger National Park as most of the camps are located on river banks and several sites draw drinking water from boreholes while others draw water directly from the river.”

Certain animal species have modified their feeding and behaviour patterns in the proximity of waste sites. Baboons are known scavengers but other animals, such as hyenas, also frequent dump sites in search of food. Smaller animals can also become permanent residents at sites.

Dump sites are also a breeding ground or habitat for many life forms potentially harmful to people, including bacteria, insects and rodents. Efficient management of landfill sites requires expensive compacting machines, which are not economical to operate on small sites.

For this reason, it was decided to burn all waste other than garden waste that could not be recycled or transported out of the park. Every camp in the park and each picnic site where waste was produced had a ‘dump-and-burn’ site.

When the technical division took over, it spent about 18 months establishing a waste management system. Open dumpand-burn sites were replaced by incinerators and a programme of recycling was introduced.

Dump-and-burn sites at the picnic spots were closed down and rehabilitated, and rubbish is now collected and stored in a caged area. When this store is full, the waste is transported to a waste centre at the nearest camp. All picnic spots, rangers’ posts, entrance gates and bush camps are equipped with waste storage cages transported to the nearest waste site once a week.

Waste management sites are located at a distance from the residential area of the camp – out of site of the public and downwind of the camp to ensure that odours and smoke from the incinerators do not reach visitors.

“Our aim is to ensure that no solid waste remains in the Kruger National Park,” Du Plessis pointed out. “Recyclable material is sorted and removed from the park by contractors. What cannot be recycled is burned in controlled incinerators.”

With the establishment of a controlled solid waste site at Mkhuhlu, about 45 km away, the park is considering closing down the incinerators at Skukuza. The impact of storing non-recyclable waste until a full load is available will have to be considered.

Recycling posed a problem as most camps are very far from recycling centers and the cost of transporting recyclable material to established centres is considerable.

Financial and other support from the recycling industry has made the operation possible.

Wet waste from kitchens as well as waste separated at the waste centres is collected by a local pig farmer.

Dry waste is collected from the camp on a daily basis and transported to the waste site where it is sorted into various categories. Items that can be recycled are separated into various storage areas. All waste collected during the day is processed on the same day (when the site is closed at night, there is no unprocessed waste lying around). Sites are locked and equipped with electric fences to ensure that no large scavengers enter the site after hours for the safety of the staff and the scavenging animals. Scavenging birds, which are a common site on municipal dumps, are noticeably absent from the waste site.

Smokeless incinerating
Incinerators are used to dispose of ordinary (non-toxic) waste that cannot be recycled: paper products, rags and styrofoam containers, among others. The incinerators comply with clean air regulations and can reach an internal temperature of 740°C, which is required to burn plastics completely.

Skukuza operates eight incinerators while most of the other camps operate only one unit. An unfortunate problem with incinerators is that they produce gases from the incineration process, including carbon dioxide and other sometimes toxic and corrosive products from burning Styrofoam and plastics. In spite of the high temperatures, which are necessary to ensure complete smokeless combustions, burning plastics and wax coated paper produces toxins such as hydrogen chloride and aromatic hydrocarbons.

Recycling in the park focuses on three items: plastics, metal and glass. Recycling of paper products takes place on a small scale but the volume of clean recyclable paper collected in the park does not justify the effort in collection and many soiled paper items join others in the incinerators.

Paper is not considered a major environmental threat as it is degradable and it is not a threat to animals although it looks unsightly when strewn around. The recycling operation is heavily dependent on agreements with the recycling and plastics manufacturing industries.       

1. Plastics

Plastics consist mainly of beverage containers and plastic bags. Beverage containers, mainly PET, are sorted according to colour. The caps are a different plastic so they are removed before the bottles are compacted. The colour of bottles is important as beverages come in transparent, green and brown bottles. Transporting the recovered bottles is a problem as PET containers have a high volume but low weight. Some 30 000 bottles are required to make up 1 t of PET. Compaction of the bottles solves the problem as compactors reduce the size in a ratio of up to 5:1. A ton of plastic then requires 7 m³, making transport on an ordinary, small truck feasible. A petrol-driven compactor has been donated to the Kruger National Park by various influential players in the plastics industry. Prior to donation of the compactor, recycling of PET and other plastic bottles was a problem and most were burned.

Du Plessis equated the donation to a ‘gift of gold’. He said the baler would enable the Kruger National Park to reduce the burning of waste in the park by 70% as no more plastics will be burned. The donation goes hand-in-hand with training in recycling that will cover aspects like correct identification, sorting and baling of plastic. “We are now looking into our options of either transporting the baler to the different camps or moving the waste to Skukuza,” he said.

Other plastics recycled consist mainly of high-density polyethylene containers and low-density polyethylene plastic film and bags, which are also compacted, as well as the caps of the PET and other bottles, which are made of polypropylene

2. Metal cans
Metal containers, including soft drink and beer cans, as well as food and paint containers, are collected and removed by agents of Collect-a-Can. This operation is also subsidised. The number of wellaged cans within the piles at the waste centre bears witness to the extent of the clean-up operations undertaken in the park.

3. Glass
Glass waste consists mainly of beverage and other bottles, which are sorted according to colour and removed by Consol at regular intervals. This operation is also subsidised.

The Kruger National Park does its own waste sorting and disposal unlike municipalities, for example, where unsorted waste is dumped at landfills and garbage pickers ordinarily sort out the recyclables, or by private institutions with a professional waste management team, which handles sorting and disposal.

Future plans
The Kruger National Park has a solid waste management policy and a vision for the future.

In order to minimise the effect of solid waste on the ecosystem, all waste will be removed from the Kruger National Park if feasible. Solid waste production within the park will be minimised and the recycling of solid waste – for conservation purposes and as a move to reduce waste – will be maximised. As waste sites are decommissioned or fall into disuse, appropriate rehabilitation measures must be taken. The effect of solid waste on the visitors’ experience will be minimised by the implementation and maintenance of an efficient waste disposal and collection system at all sites.

Staff camping temporarily in the veld or using patrol huts, research camps, trails camps or pickets will have to remove their waste when they leave.

The efficient management of solid waste will be ensured through active intervention, with full control over management measures being retained, and will be supported by appropriate monitoring programmes. Solid waste management will be permanently incorporated into any planning agenda.

Decisions will not be based on requirements of individual camps/waste sites in isolation but rather on all components of the waste source, stream and disposal, within the total geographical area of the park.

The Kruger National Park will ensure that roads are free of litter by promoting awareness among tourists and staff alike, co-ordinating regular clean up patrols and soliciting the co-operation of all staff to pick up litter wherever they find it.

Lessons for municipalities
The Kruger National Park waste management system succeeds largely because of the internal focus on the process and because of support and subsidization from various recycling and manufacturing industries. Recycling is important in waste management in any community but, in many cases, the cost of ‘harvesting’ recyclables, particularly transporting plastics to recycling centres, makes the process unattractive and unfeasible.

The solutions implemented by the Kruger National Park can serve as an example to remote urban communities.

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PLANNING PERSONALITY

Tasneem Essop - the ‘bush planner’
The ‘bush planner’
Dealing with the planning of an environmentally-diverse and developmentally-pressured province, such as the Western Cape, requires a ‘take-no-prisoners’ attitude.

Tasneem Essop is a born-and-bred District 6 Capetonian. Today she is a Western Cape government minister with two portfolios: Environment Affairs and Planning as well as Economic Development.

At the time of going to press, the Provincial Growth and Development Strategy (PGDS) was out for public comment.

This document is the culmination of an extensive policy formulation process in which the drafting of a Provincial Spatial Development Framework (PSDF), launched in December 2005, played a prominent role.

Spatial framework
According to Minister Essop, the fundamental approach taken in formulating the PSDF was the sustainable ‘triple bottom line’ approach. It was important to consider how to achieve social justice and economic development while maintaining environmental integrity. Of importance to the Western Cape SDF document and process was the adoption of a bio-regional planning approach. “We had to do this as we had to deal with the unique characteristics of the province as well as the constraints,” said Minister Essop. The Western Cape has massive biological diversity.

In fact, the Cape floral kingdom has been declared a World Heritage Site.

On the constraints side, the Western Cape is water-constrained and energy-insecure.

The provincial SDF therefore also deals with issues such as renewable energy and water demand management.

The provincial SDF had to establish a framework to deal with all of these aspects.

Planning mechanisms were used to identify where the province is going to encourage development. Areas were defined as either core, buffer or transitional in order that there could be far more predictability about where people can develop and what kind of developments are allowed.

This would also ensure more predictability in the province’s decision-making.

Linked to identifying areas for development, the department defined very clear urban edges. In line with national policy, the department encouraged densification and the better utilisation of land.

Essop believes this will improve economic viability and hopefully result in the breakdown of the inherited ‘apartheid town structure’, which included urban sprawl and other negative aspects, such as the poor being placed on the peripheries of towns.

Exciting topics placed on the table during the drafting of the PSDF included the role of architecture and landscapes, and how, for instance, scenic landscapes need to be protected and maintained in small towns – included as part of the PSDF.

In terms of economic development, the department identified, in line with the National Spatial Development Perspective, areas with high growth potential as well as areas of high human need potential. This was done for the entire province in order to decide where potential could be unlocked.

Linked to that is an integrated law reform process. The department plans to integrate legislation on planning, the environment and heritage – again informed by the triple bottom line. The ultimate aim is to cut down on the time it takes to make decisions and duplications in the system.

The costs of doing business in the Western Cape will hopefully be cut as well.

Metropolitan areas
The role and importance of metropolitan areas is something that should not be underestimated in provincial planning. Approximately 70% of the Western Cape population resides in the Cape Town metropolitan area. Therefore a significant portion of the GDP is also driven by the metro.

In this regard, Essop’s department is engaging with the metro to deal with longterm economic strategy and planning. But, according to Essop, the other exciting conceptualization receiving much attention is consideration of the metro as part of a functional region. It cannot be seen in isolation of, for example, the Cape winelands or the West Coast/Saldanha area. Provincial planning should happen within the context of a functional province.

“We are already starting to see alignment at a municipal level. That is critical because we can have planning at a provincial wide level but it is important that the municipalities, especially those that have the critical pressures, grapple with this and define their local SDFs,” Essop emphasised.

Trade unionist turned minister
“I am not a town planner and I am not an engineer! In the olden days, we used to refer to ‘bush economists’ and ‘bush lawyers’, among others. So I think I am a ‘bush planner’!” Essop said.

Coming from a teaching background, Essop was an activist and trade unionist prior to 1994.

In the Western Cape Legislature of 1994, she was spokesperson for economics and finance. During the coalition government of the Western Cape, her portfolio was Transport and Public Works. From 2004, she has been working in her current capacity.

“It has been a wonderful portfolio because it has been very challenging. My biggest problem at the beginning and, to a certain extent it still is, is that there is a big polarisation between developers on the one hand and environmentalists on the other hand. And there shouldn’t be! We have to understand each other’s point of views.”

Responsible management of the Cape floral kingdom with its precious fynbos is a provincial priority.

Private sector
From the province’s side, there has been a formalised, institutional relationship with the private sector, called the Provincial Development Council (PDC). Government, labour, business and civil society are represented on the council, and all policy initiatives and programmes go through a PDC process.

But, over and above the institutionalised forums, public participation processes are run around all programmes and documents. “I am feeling comfortable enough that the kind of critical mass required for thinking to happen at private-sector level is beginning to emerge. More and more businesses are actually understanding that we are going to drive a sustainable triple bottom line approach to development. Fundamentally, the way they are going to do business has to fit in with that context. It is in their interests to take the triple bottom line approach in the work they do,” Minister Essop said. The idea is that the provincial government will not just follow a ‘big stick’ approach but that developers and the like will eventually begin grappling with the issue of alternative models for development that can fit in with provincial guidelines.

Minister Essop admitted that it is important for her department to provide leadership. “One of the things that I know business wants is transparency in decision-making, predictability in decision-making, and cutting down on the time it takes to make decisions. This is what we are offering through the PSDF and the PGDS. When I make a decision or when my department makes a decision, test us against the guidelines.”

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BATTLE OF THE 'BURBS

Potchefstroom: Oewersig v Miederpark
A ‘typical’ SA town transforms
The suburbs of Potchefstroom in the North West Province, just two hours from Johannesburg, are growing in a style characteristic of modern South African urban settlements.

Potchefstroom was established in 1837 by a group of Voortrekkers led by Andries Hendrik Potgieter, and was the first capital of the Zuid-Afrikaansche Republiek.

Two of its most wellk-nown institutions are both located towards the north of the town – a major military base, which was used in both world wars and became the headquarters of the former Western Transvaal division of South Africa's armed forces, and Potchefstroom University (now part of the North West University), established in 1905 when the Gereformeerde Kerk transferred its theological seminary from Burgersdorp to Potchefstroom. Another feature in this area is the Potchefstroom Dam on the Mooi River, where bungalows, camping and caravanning facilities are provided at the Lakeside Resort.

The town originally grew along the Mooi River, forming a noticeable north-south axis.

Over time, wealthier suburbs were established to the north, closer to the dam, educational facilities and a military base while the suburbs south of the town centre were subject to low- to middle-income development.

Oewersig
Oewersig was established between the 1950s and late 1960s. The township design is fairly standard although some erven have an irregular ratio of street frontages to depth of erven. Heilige Akker and the Dam Area originated in much the same way as Oewersig, and the three areas are very similar in character, development potential and community profile.

Miederpark
Miederpark was previously the site of the old Klopperville ‘location’ until its residents were resettled at Itsoseng, Ledig and Ikageng during the early 1960s. The area was then redeveloped into a standard township layout guided by more modern planning principles with very little that is innovative or outstanding about the suburb’s layout.

Land use
Oewersig 6/10

           Low densities
           Residential

Oewersig and its sister suburbs, Heilige Akker and the Dam Area, are situated to the north of the town, and comprise low-density residential developments only with about 9 units/ha. Bounded on the west by major arterials, the individual suburbs are isolated and much smaller than Miederpark. They are therefore less diverse although they are located close to ‘excellent’ schools. To date, limited densification has taken place in the area by way of subdivisions and Res 2 development.

Although limited densification is allowed adjacent to the arterials, the land uses are likely to remain the same over the next five years.

An interesting mix of architectural languages and interpretations lends diversity to the suburb of Oewersig.

Miederpark 6/10
           Some sub-divisions
           Limited mixed use

Boxed in by the Potchefstroom town centre to the north and other developed suburbs to the west, Miederpark is bounded on the east by Mooi River Drive, and on the south by agricultural holdings and the town’s sewage works.

The predominant land use is Res 1 with two small neighbourhood centres comprising unprepossessing shopping centres and service stations.

The area has a few churches but proximity to schools is limited.

According to Thinus de Jager of PLANCentre Town Planners, limited densification has taken place to date by way of subdivisions and Res 2 development, and the density is about 10 units/ha.

A neighbourhood shopping centre in Miederpark has an industrial quality, and is surrounded by a large expanse of parking.

Accessibility
Oewersig 6/10
           Only local traffic
           Limited access

Oewersig and Heilige Akker are both bounded by Van der Hoff Street on the west while the Dam Area is bounded by Tom Street. Each suburb has only two access points to these arterials.

The area in between Oewersig and the Dam Area is occupied mostly by university facilities while Heilige Akker, further south, is separated from Oewersig by the university’s sports grounds. All three are bounded on the east by the Mooi River.

The isolated nature of the suburbs around the dam, together with a lack of social amenities, means that the only traffic is created by residents accessing their homes.

Miederpark 7/10
           Grid pattern
           Peak hour traffic

The major access route to Miederpark is via Kerk Street through the town centre, with three additional access points on the east from Mooi River Drive, and access from Louw Street on the west. Miederpark forms part of the greater southern suburbs and is laid out on a grid pattern, which eases access. This, together with additional social amenities, means that the suburb experiences a heavier internal traffic flow.

Miederpark is separated from the Mooi River and its adjacent green belt by Mooi River Drive – a busy arterial.

Development potential
Oewersig 6/10
           Isolation limits expansion
           Some second dwellings

Potchefstroom is experiencing increased urbanization and pressure for development.

But, at this stage, this still seems to be on a relatively small scale. In Oewersig, Heilige Akker and the Dam Area, limited development will be allowed along the arterials only and there is no potential for expansion due to the isolation of the suburbs.

A spokesperson for the City Council of Potchefstroom explained that a densification study was conducted in these areas in 1996 and another was done in 2006. The general feeling is that residents do not want densification to take place. When people apply for rezoning of properties in the future, a minimum erf size will be specified.

However across the river from Oewersig and Heilige Akker, on the Mooi Vallei Landbouhoewes (small holdings), several high-income residential developments are being planned.

The dam and its accompanying recreational activities is attractive for development but Oewersig cannot really accommodate any additional densification.

Miederpark 7/10
           Government-owned land
           Town and cluster housing

In Miederpark, there are still about 52 open, governmentowned stands that can be developed.

Theunis Kruger from TG Kruger Estate Agents noted that, in all likelihood, these will be used for lower- and higher density residential developments (Res 2 and 3) such as townhouses and clusters, as well as small commercial enterprises like shops and offices.

While expansion to the south is largely blocked by swamps and sewage works, resulting in lower land values, there is limited opportunity for development in existing agricultural areas.

In Miederpark, residential development to date includes applications for second dwellings and subdivisions.

The future will most likely include more medium- and high-density residential development applications.

Environmental quality
Oewersig 9/10
           Open spaces
           River amenity

Oewersig, Heilige Akker and the Dam Area are all located on the banks of the Mooi River with open, grassy banks and access to the stream within easy walking distance for all residents.

Because the river is so accessible, it almost appears to be an extension of the individual stands. An additional feeling of openness is created by this open space being linked to the sports fields of the university. The impression is that the homes and gardens are well-integrated with a high-quality urban green belt. And, presumably because of their proximity to this natural water source, trees are well-established and gardens are lushly vegetated, making the suburb deeply shaded and tranquil. The Oewersig properties open onto the Mooi River, making it an integral part of the suburb.

Miederpark 6/10
           Parks under-developed
           Impact of arterials

Miederpark is also located near the Mooi River but it is separated from the stream and its adjacent green belt by Mooi River Drive, which is a busy arterial. The river therefore does not form an integral part of the suburb and is seldom used although it does afford a view of green space for some homes.

Isolated parks within the suburb are under-developed as public green spaces and stand as islands in the neighbourhood. No expansion for new open spaces is possible as the area is well established and the potential for usable, attractive green spaces is more likely to happen through the upgrading of the existing parks.

Removed from the river, Miederpark appears to be a suburb exposed to the fairly harsh climatic conditions of the North West.

The area’s churches and houses generally have large, well-kept, sunny gardens and indigenous grasses grow freely on the many untended open stands.

A feeling of openness is created by the bird sanctuary on the southern side of Miederpark, as well as open erven and the swamps.

Community and sense of place
Oewersig 8/10
           Middle to high income
           Sense of openness

According to De Jager, Oewersig, Heilige Akker and the Dam Area are home to a community of white- and blue collar workers, with a middle to higher level of income. Because of their proximity to the university, and the established nature of the suburb, residents are often university personnel or retired people. Land values average about R1,2-million, depending on the property.

The houses in Oewersig, Heilige Akker and the Dam Area generally have three to four bedrooms with two bathrooms and one or two garages. The buildings are single-and double-storey dwellings, and about 40% are architecturally designed. This interesting mix of architectural languages and interpretations lends diversity to the area.

The town planning design is fairly standard yet the limited size of the suburbs (about 100 erven) and the abundance of open space give the area a unique and homely feeling.

Fewer boundary walls have been built and the houses acknowledge the street. This helps to maintain the sense of openness and gives the area a feeling of having grown organically over time.

Properties in the Dam Area are sought-after due to the tranquil atmosphere and their proximity to the university and schools.

Miederpark
           Young families
           Affordability a driving factor

Closer to the town center and the industrial area of Potchefstroom, Miederpark is a younger development and is generally more suitable for young families because of the more reasonable property prices. The community also comprises a mixture of white and blue-collar workers but at a more middle-income level.

Property values average at approximately R700 000 to R800 000.

Miederpark’s houses are generally more modern in style. The buildings are single-storey and tend towards a more ‘spec house’-type architecture with fewer unique characteristics.

The houses respond more obviously to the grid pattern of the street blocks with clearly demarcated boundaries.

The unremarkable housing types, resulting from a need for security and affordability, tend to make the area less distinguishable from other South African towns and suburbs.

The character of the homes is therefore expressed more on an individual level through the choice of colour and layout of gardens. Although there is a greater diversity of building typologies than in Oewersig, the isolated shopping centres and service stations, together with the large, featureless parks, tend to break up the residential fabric.
Miederpark is a typical North West province suburb with open, sunny gardens.

Conclusion
Oewersig: 35/50
Miederpark: 31/50

It appears as if the communities of both suburbs have been determined by the individual historical development of each, together with their location in relation to natural and man-made resources.

And both of these factors have had a direct impact on the land values.

As a ‘typical’ South African town with a valuable political, social and cultural history, Potchefstroom faces many of the issues that confront urban settlements around the country. It will be interesting to see just how sensitively the densification of existing suburbs and the establishment and development of new suburbs is handled, and what the effect will be on the way of life of people living in the town.

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INSPIRATION

Private intervention for public good
Material from excavations at Melrose Arch in Johannesburg is being used to revamp the nearby James and Ethel Gray Park.

Melrose Arch has contributed R5-million towards the upgrading of the James and Ethel Gray Park in northern Johannesburg, and Johannesburg City Parks has approved the proposal that will transform the park into a meaningful public recreation area.

In February 2006, Melrose Arch management was approached by representatives of the Birdhaven Ratepayers Association requesting a donation towards the largely-underutilised park. Melrose Arch Development company director Nicholas Stopforth told Urban Green File that an integral part of the philosophy of a successful high-density, mixed use development would be convenient access to a ‘green lung’. For Melrose Arch, this is the James and Ethel Gray Park, which is a component of that peripheral open space system.

At the moment
The park does not offer comprehensive recreation amenities and is steeply sloped in many areas, limiting its use for recreation purposes. Site maintenance mainly involves mowing the expansive 36 ha of grass.

From a security perspective, access through the park is not controlled and the park is partially fenced with different types of fencing. Criminal activity has also labeled it an unsafe environment’.

The Sandspruit running through the park has been canalised within an unsightly, and potentially dangerous, concrete and brick channel, which has in turn suffered severe erosion and degradation. The natural flow of water is also limited so it has degraded and silted to a large extent.

Proposed improvements
The primary tree structure will be left undisturbed. Interventions will be mainly along the open grassed areas and the stream, altering unpleasantly steep slopes to increase useable recreation spaces, improving the ecological functioning of the park, increasing bio-diversity, reducing the amount of maintenance the park requires, and improving safety and surveillance.

Danie Rebel of Uys and White Landscape Architects, appointed by Melrose Arch for this project, explains that the new landscape will be a fusion of manicured grass areas, natural vegetation and ‘endemic’ habitat.

“Usability of the park will be increased by creating a number of terraces or platforms,” Rebel explained. “The existing landscape will be re-moulded through a landfill exercise over a period of a few months – Melrose Arch will provide organic and sub-base material from its basement excavation to create the terraces, which will be grassed in a manicured fashion to allow for multifunctional play areas.”

For walkers, the embankments between the platforms will be a maximum slope of 1:3 and will be covered with native grass and tree species to reintroduce the highveld eco-system.

The re-grassing of the platforms will consist of instant ‘kweek’ sods and a temporary manual irrigation system while the embankments will be hydro- seeded with an appropriate seed mixture.

While a few scattered trees will be affected during the upgrade process, they will be replaced with at least three times the amount of indigenous species, according to Rebel. Topsoil will also be stripped and stockpiled, and replaced over the landfill at the end of the operation. Several other amenities have been proposed for the first phase, including fencing, park furniture, walkways and ablution facilities.

The second phase will create the improved water habitat and attenuation, and the third will provide open space commercial activities essential for the long-term sustainability and vision of the park.

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INSULT

Park as dumping site
Development pressure in the Sandton area is beginning to take its toll as building rubble is being dumped in a park.

Elsewhere in Johannesburg, dumping of building material is also happening but not in a co-ordinated manner.

The southern portion of the George Lea Park, located at the corner of Sandton Drive and William Nicol Drive, has been used for this purpose.

There is provision for a number of activities on the rest of the park, including the Sandton Sports Club, a garden refuse dump site and a seemingly under-utilised children’s play area.

Many people have long campaigned for multi-purpose use of our parks. Rightly so but, if the various activities are not properly managed and clearly demarcated, this could be an open invitation for people to use parks at their own convenience with little regard for the broader community.

Although the dumping of the rubble is not extensive at the moment, intervention is required before we lose the precious green spaces of Johannesburg.

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TREE OF THE ISSUE

Celtis sinensis
An urban tree
The Celtis sinensis grows successfully in the urban Western Cape, according to David Curran of the City of Cape Town.

The City of Cape Town’s Parks Department has, for a number of years, used Celtis sinensis in its landscaping, especially within the CBD.

The indigenous Celtis Africana (‘white stinkwood’ or ‘camdeboo’) was planted in the past but without much success. It does not enjoy the sometimes hostile climatic conditions characteristic of the peninsula.

Celtis sinensis, however, has flourished and some good specimens can be found at the top end of St Georges Mall in the centre of Cape Town, along parts of Main Road in Sea Point and most other parts of the city.

The difference between Celtis Africana and Celtis sinensis can be, to the untrained eye, almost difficult to distinguish and many people still believe that this is the indigenous variety.

Celtis sinensis forms a good, rounded crown and reaches a height of between 8 m and 15 m. It offers soft filtered shade and is ideal in pedestrian malls, along sidewalks as a ‘street tree’ and in community parks. It is, like other Celtis species, deciduous and therefore allows sunlight through in winter.

The flowers are inconspicuous but small fruit is produced in fairly large quantities, turning from green through yellow to black as it ripens. It is easy to cultivate from seed.

The root system is not aggressive but, like all trees, the roots can, over time, become problematic, especially when planted around paving or along sidewalks and it is suggested that, prior to planting, a protective root barrier is incorporated to prevent damage.

Large specimen trees have also been successfully transplanted within the city.