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31 August 2020 | Story André Damons | Photo Supplied
Prof Ivan Turok
Prof Ivan Turok

The number of people infected by the coronavirus is linked to the density of urban living. South Africa’s townships and informal settlements are bearing the brunt of the disease, on top of all their existing problems of unemployment, poverty, hunger, and crime. This is a disturbing situation and demands greater attention across society.

This is according to Prof Ivan Turok from the Human Sciences Research Council (HSRC), the Department of Economics and Finance, and the Centre for Development Support at the University of the Free State (UFS), who has recently been awarded a Research Chair in City-Region Economies at the UFS by the South African Research Chairs Initiative (SARChI).

Prof Turok was part of a webinar discussion on ‘Urban Living Post-COVID-19’ with Dr Geci Karuri-Sebina – who manages the research programme at South African Cities Network and who has two decades’ experience working and publishing in the fields of urban development, innovation, and foresight – and Mr Thireshen Govender, architect and founder of UrbanWorks. They analysed how COVID-19 challenges urban living, social distancing, and the de-densification of cities as South Africa heads towards 70% of its population living in urban areas.

According to Prof Turok, urban density has been blamed for the spread of the virus. “The fear of people crowding together has caused negative reactions from government, from business, and from households. This is unlikely to be a short-lived, temporary phenomenon. It will be with us for some time to come.”

“The virus poses an ongoing risk to society, with the prospect of second and third waves taking hold. A lockdown could be re-imposed and further efforts could be made to enforce distancing and de-densification of cities, particularly our densest settlements,” said Prof Turok.

 

De-risking urban density

There was a simple but compelling idea at the heart of his presentation, which should also be “at the heart of a more effective and inclusive response to the pandemic”. At the moment, the government’s response to the crisis facing our poorest communities is uninspiring. “We need a more positive vision for the future than wearing masks and washing our hands.”

“We need to be bolder and more imaginative about de-risking urban density. In other words, making crowded neighbourhoods safer and more secure for people to live in. Density poses multiple risks to residents. How do we reduce these risks in ways that generate wider benefits, rather than business as usual – forcing people to change their behaviour and follow protocols?”

With reference to New York, which was severely affected by the virus, Prof Turok showed that it was not density per se that was the problem, but rather the type of density. The densest part of the city (Manhattan) was far less affected by the virus than poorer outlying communities. “This gives us a clue that more floor space in taller buildings helps to prevent crowding and makes density more liveable,” said Prof Turok.

The reality in South Africa is also different when you drill down and distinguish between different kinds of places. Big cities have been affected worse than towns and rural areas – in terms of the incidence of infections and the number of deaths. Within cities, there have been far more problems in the townships and informal settlements than in the suburbs. In Cape Town, for example, the southern and northern suburbs and the central city have been barely affected by the virus. However, infections have been very high on the Cape Flats, including Khayelitsha, Langa, Gugulethu, Philippi, and Mitchells Plain.

“Population densities in some of these areas are more than 100 times higher than in the affluent suburbs. The differences are very striking.”

“Incomes on the Cape Flats are also much lower than elsewhere in the city. So, there is a correspondence between density and the disease, unlike New York,” says Prof Turok.

All the discussions about the pandemic so far has focused on the negative aspects of urban density for the risk of transmission. This ignores all the benefits of dense urban living. Intense human interaction fosters learning and creativity, which raises productivity and innovation. Concentrated populations generate economies of scale in the provision of infrastructure and institutions such as universities. Cities give firms greater choice of workers and vice versa.

 

Pure population density and economic density

Prof Turok continued by saying that physical distancing can be socially and economically damaging. “Attempts to force people apart through de-densification undermine all kinds of personal networks, weaken the social fabric of communities, and erode the economic advantages of proximity that are so important for cities.”

“We need to understand that people crowding together in dense informal settlements is a symptom of something more fundamental, namely poverty. The pressure on land reflects the fact that low-income households can’t afford the space standards of middle- and upper-income groups. Forcing people apart (or to stay home) to reduce the risk of transmission just treats the symptoms of the problem. It cannot be a lasting solution. It doesn’t build resilience to confront the multiple challenges facing poor communities,” said Prof Turok.

A key part of a lasting solution can be summed up as building economic density. This involves increasing investment in two- or three-storey buildings to give people more living space and to free up land at ground-floor level to accommodate essential infrastructure and more public space for markets and social interaction. A better living and working environment would strengthen community resilience to public-health problems and promote all-round development. The idea of economic density offers a practical vision that can inspire hope in a better future, rather than the status quo of wearing masks in crowded places.

“We need to de-risk urban density through tangible investment, rather than forced distancing or dispersal. This will help to bring about far-reaching improvements to people’s lives in cities. At the moment, the lack of economic density in impoverished communities is a much bigger problem than excessive population densities.”

News Archive

Research on locomotion of giraffes valuable for conservation of this species
2016-08-23

Description: Giraffe research 2016 Tags: Giraffe research 2016

Technology was used in filming the giraffes.
According to research, giraffes will slow
down when a drone is positioned
approximately 20 - 30 m away. When the
drone moves closer, they will revert
to galloping.
Photo: Charl Devenish


The meaning of the Arab term Giraffe Camelopardalis is ‘someone who walks fast’. It is precisely this locomotion of their longnecks that encouraged researchers, Dr Francois Deacon and Dr Chris Basu, to study the animals more closely.

Despite the fact that giraffes are such well-known animals, very little research has been done on the manner in which these graceful animals locomote from one place to the next. There are only two known ways of locomotion: the slower lateral walking and the faster galloping. Most animals use these ways of moving forward. It is unknown why giraffes avoid intermediate-speed trotting.

Research of great value to the industry

Research on the manner in which giraffes locomote from one place to the next will assist the industry in understanding aspects such as their anatomy and function, as well as the energy they utilise in locomoting from one place to another. Information on the latter could help researchers understand where giraffes fit into the ecosystem. This data is of great value for large-scale conservation efforts.

Universities working together to collect data

Dr Basu, a veterinarian at the Royal Veterinary College in the UK, has studied the animals at a zoo park in the United Kingdom. He visited the University of the Free State (UFS) in order to expand his fieldwork on the locomotion of giraffes. This study was done in cooperation with Dr Deacon from the Department of Animal, Wildlife, and Grassland Sciences at the UFS. Dr Deacon is a specialist in giraffe habitat-related research in South Africa and other African countries.

The fieldwork for the research, which was done in the Woodland Hills Wildlife Estate and the Willem Pretorius Nature Reserve, preceded research on the movement and the forces involved in the locomotion of giraffes. Due to the confined fenced area in the zoo park, it was practically impossible to study the animals at speed. “The study of actions ‘faster than walking’ is crucial for gathering data on, inter alia, the frequency, length, and time associated with each step.


Technology such as drones offers unique
opportunities to study animals like giraffes.



Technology used to ensure accuracyTechnology such as drones offers unique opportunities to study animals like giraffes. Apart from the fact that it is possible to get high-quality video material of giraffes – moving at speed – it is also a very controlled device that ensures the accuracy of data.

It is the first time ever that a study has been done on the locomotion of giraffes with this level of detail.
Research on the study will be published in the Journal of Experimental Biology.

The project was approved by the UFS ethics committee.

 

 

 

Previous research articles:

9 March 2016:Giraffe research broadcast on National Geographic channel
18 Sept 2015 Researchers reach out across continents in giraffe research
29 May 2015: Researchers international leaders in satellite tracking in the wildlife environment


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