Al Hasahisa in context: Street-network sprawl trends

Al Hasahisa in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Al HasahisaAl Jazirah (Region)Sudan (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Al Hasahisa plotted against Al Jazirah and Sudan. The SNDi of new construction in Al Hasahisa peaked in 1991-2005, compared to Al Jazirah which followed a zig-zag trend with an overall increase and Sudan which followed a zig-zag trend with an overall increase. Most recently, Al Hasahisa's incremental SNDi fell from 3.73 to 2.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Al Hasahisa ranked 3rd out of 3 cities in Al Jazirah and 65th out of 78 in Sudan as of 2020.

New Street Additions (2006–2020)

SNDi value
2.58
Rank in Sudan
62nd of 78
Rank in Al Jazirah
2nd of 3

Entire Network (Aggregate)

SNDi value
2.38
Rank in Sudan
65th of 78
Rank in Al Jazirah
3rd of 3

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Al HasahisaNizipAlgeciras

In new street additions, Al Hasahisa built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Nizip built increasingly disconnected streets from 1975 through 1976-1990, then improved and Algeciras fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Al Hasahisa and Algeciras have been converging in their street-network character since 1975.