Zurmi in context: Street-network sprawl trends

Zurmi in context

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
ZurmiZamfara (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zurmi plotted against Zamfara and Nigeria. The SNDi of new construction in Zurmi followed a zig-zag trend, compared to Zamfara which peaked in 1976-1990 and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Zurmi's incremental SNDi rose from 1.34 to 5.27 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zurmi ranked 9th out of 9 cities in Zamfara and 405th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
5.27
Rank in Nigeria
293rd of 422
Rank in Zamfara
8th of 9

Entire Network (Aggregate)

SNDi value
6.57
Rank in Nigeria
405th of 422
Rank in Zamfara
9th of 9

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
ZurmiDapeng New DistrictBukit Sentosa

In new street additions, Zurmi fluctuated in its street-construction patterns, while Dapeng New District built increasingly disconnected streets from 1975 through 1991-2005, then improved and Bukit Sentosa fluctuated in its street-construction patterns. For the full network, Zurmi fluctuated in connectivity, while Dapeng New District became progressively more disconnected and Bukit Sentosa fluctuated in connectivity. Zurmi and Bukit Sentosa have been growing further apart in their street-network character since 1975.