Dongola in context: Street-network sprawl trends

Dongola in context

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
DongolaNorthern (Region)Sudan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dongola plotted against Northern and Sudan. The SNDi of new construction in Dongola peaked in 1991-2005, compared to Northern which rose steadily and Sudan which followed a zig-zag trend with an overall increase. Most recently, Dongola's incremental SNDi fell from 1.7 to 1.36 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dongola ranked 1st out of 1 cities in Northern and 12th out of 78 in Sudan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.36
Rank in Sudan
14th of 78
Rank in Northern
1st of 1

Entire Network (Aggregate)

SNDi value
1.19
Rank in Sudan
12th of 78
Rank in Northern
1st of 1

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
DongolaIgbara-OkeFunes

While Igbara-Oke and Funes both built increasingly disconnected streets over time, Dongola built increasingly disconnected streets from 1975 through 1991-2005, then improved in new street additions. For the full street network, though, all three cities follow the same trend. Dongola and Igbara-Oke have been growing further apart in their street-network character since 1975.