White Nile: 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 White Nile, Sudan on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in White Nile as of 2014, the overall level of street-network sprawl is 1.73, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.69, 1.63, 0.73 and 1.92. The disconnectivity of new streets constructed in White Nile fell, then rose. In 1991-2000, new street layouts were the most connected.
Quantity of street network construction: The street network in White Nile spans a total of 4346 kilometers. It is dominated by roads constructed in 2001-2014. These roads have an SNDi of 1.92, 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 2.69, 1.89, 1.18 and 1.73. The SNDi of the aggregate street network in fell at first, but White Nile has worsened in disconnectivity since 2000.
The level of street-network sprawl in new development in White Nile was at its lowest in 1991-2000. To get a sense of how street development has changed in White Nile, we can consider three of its most populous cities: Kosti, Rabak and Jebel Aulia. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Kosti followed a zig-zag trend. The level of street-network sprawl in new development in Rabak followed a zig-zag trend. The level of street-network sprawl in new development in Jebel Aulia followed a zig-zag trend.
How do development practices in White Nile fare in comparison to others in Sudan? Most recently in 2001-2014, street construction in White Nile was the 10th-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 White Nile has become more connected. White Nile ranked 4th in 1975, 8th in 1976-1990, 15th in 1991-2000 and 10th in 2001-2014.
As of 2014, the city with the most disconnected street network in White Nile is Rabak with an SNDi of 1.64, which is relatively well-connected. Conversely, the most connected city is Kosti with an SNDi of 0.11, which is very well-connected. See trends for these cities: Kosti, Rabak
The level of street-network sprawl in the aggregate network in White Nile was at its lowest in 1991-2000. To get a sense of how the aggregate street network has changed in White Nile, we can consider three of its most populous cities: Kosti, Rabak and Jebel Aulia. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Kosti followed a zig-zag trend. The level of street-network sprawl in the aggregate network in Rabak followed a zig-zag trend. The level of street-network sprawl in the aggregate network in Jebel Aulia followed a zig-zag trend.
To date, White Nile is 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, the street network in White Nile has become more connected. White Nile ranked 4th in 1975, 5th in 1976-1990, 10th in 1991-2000 and 11th in 2001-2014.