South Darfur: region in Sudan
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View South Darfur, Sudan on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in South Darfur as of 2014, the overall level of street-network sprawl is 2.01, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.63, 1.9, 3.92 and 1.76. Disconnectivity in street construction in South Darfur follows a zig-zag trend. In 2001-2014, street construction was most disconnected, while construction was most connected in 1991-2000.
Quantity of street network construction: The street network in South Darfur spans a total of 3466 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.76, which is relatively well-connected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 2.63, 1.71, 2.44 and 2.01. Disconnectivity in South Darfur's street network follows a zig-zag trend. In 1976-1990, the region was most disconnected; while it was most connected in 1975.
The level of street-network sprawl in new development in South Darfur followed a zig-zag trend with an overall decrease. To get a sense of how street development has changed in South Darfur, we can consider three of its most populous cities: Nyala, Buram and Kas. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Nyala was at its lowest in 1976-1990. The level of street-network sprawl in new development in Buram followed a zig-zag trend. The level of street-network sprawl in new development in Kas followed a zig-zag trend.
How do development practices in South Darfur fare in comparison to others in Sudan? Most recently in 2001-2014, street construction in South Darfur was the 11th-most disconnected out of the 17 regions in Sudan. Its position in the ranks since 1975 has fallen; relative to other regions in Sudan, street construction in South Darfur has become more connected. South Darfur ranked 5th in 1975, 5th in 1976-1990, 4th in 1991-2000 and 11th in 2001-2014.
As of 2014, the city with the most disconnected street network in South Darfur is Buram with an SNDi of 3.85, which is highly disconnected. Conversely, the most connected city is Um Danga with an SNDi of -1.79, which is very well-connected. See trends for these cities: Um Danga, Buram
The level of street-network sprawl in the aggregate network in South Darfur followed a zig-zag trend with an overall decrease. To get a sense of how the aggregate street network has changed in South Darfur, we can consider three of its most populous cities: Nyala, Buram and Kas. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Nyala was at its lowest in 1991-2000. The level of street-network sprawl in the aggregate network in Buram followed a zig-zag trend. The level of street-network sprawl in the aggregate network in Kas followed a zig-zag trend.
To date, South Darfur is the 7th-most disconnected out of the 17 regions in Sudan. Its position in the ranks since 1975 has fallen; relative to other regions in Sudan, the street network in South Darfur has become more connected. South Darfur ranked 5th in 1975, 6th in 1976-1990, 5th in 1991-2000 and 7th in 2001-2014.