Sifeiya in context: Street-network sprawl trends

Sifeiya in context

1.51.82.1<19751976–19901991–20052006–2020SNDi of street additions
1.51.82.1<19751976–19901991–20052006–2020SNDi of entire street network
SifeiyaWhite Nile (Region)Sudan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sifeiya plotted against White Nile and Sudan. The SNDi of new construction in Sifeiya was at its lowest in 1976-1990, compared to White Nile which followed a zig-zag trend with an overall increase and Sudan which followed a zig-zag trend with an overall increase. Most recently, Sifeiya's incremental SNDi rose from 1.61 to 1.95 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sifeiya ranked 4th out of 6 cities in White Nile and 34th out of 78 in Sudan as of 2020.

New Street Additions (2006–2020)

SNDi value
1.95
Rank in Sudan
45th of 78
Rank in White Nile
4th of 6

Entire Network (Aggregate)

SNDi value
1.51
Rank in Sudan
34th of 78
Rank in White Nile
4th of 6

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
SifeiyaCipollettiPrigen

In new street additions, Sifeiya built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns, while Cipolletti built increasingly disconnected streets from 1975 through 1976-1990, then improved and Prigen fluctuated in its street-construction patterns. For the full network, Sifeiya became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Cipolletti grew more disconnected from 1975 through 1991-2005, then improved and Prigen became progressively more disconnected.