Central 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 Central Darfur, Sudan on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Central Darfur as of 2014, the overall level of street-network sprawl is 3.56, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.7, 4.71, 4.48 and 2.35. Street construction in Central Darfur increased in disconnectivity initially but has since improved. The streets constructed in 1976-1990 were the most disconnected.
Quantity of street network construction: The street network in Central Darfur spans a total of 749 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 2.35, which is in the 40th to 60th percentile of disconnectedness.
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 2.7, 4.91, 5.02 and 3.56. The aggregate street network in Central Darfur increased in disconnectivity initially,but the trend has turned around after 2000.
The level of street-network sprawl in new development in Central Darfur peaked in 1976-1990. To get a sense of how street development has changed in Central Darfur, we can consider one of its most populous cities: Zalingei. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Zalingei followed a zig-zag trend with an overall decrease.
How do development practices in Central Darfur fare in comparison to others in Sudan? Most recently in 2001-2014, street construction in Central Darfur was 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, street construction in Central Darfur has become more connected. Central Darfur ranked 3rd in 1975, 1st in 1976-1990, 2nd in 1991-2000 and 7th in 2001-2014.
As of 2014, the city with the most disconnected street network in Central Darfur is Zalingei with an SNDi of 0.56, which is relatively well-connected. Conversely, the most connected city is Zalingei with an SNDi of 0.56, which is relatively well-connected. See trends for these cities: Zalingei, Zalingei
The level of street-network sprawl in the aggregate network in Central Darfur peaked in 1991-2000. To get a sense of how the aggregate street network has changed in Central Darfur, we can consider one of its most populous cities: Zalingei. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Zalingei followed a zig-zag trend with an overall decrease.
To date, Central Darfur is the 1st-most disconnected out of the 17 regions in Sudan. Its position in the ranks since 1975 has risen; relative to other regions in Sudan, the street network in Central Darfur has become more disconnected. Central Darfur ranked 3rd in 1975, 1st in 1976-1990, 1st in 1991-2000 and 1st in 2001-2014.