Shinkafi in context: Street-network sprawl trends

Shinkafi in context

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
ShinkafiZamfara (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Shinkafi plotted against Zamfara and Nigeria. The SNDi of new construction in Shinkafi rose steadily, compared to Zamfara which peaked in 1976-1990 and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Shinkafi's incremental SNDi rose from 3.26 to 3.64 between 1991-2005 and 2006-2020. In terms of the aggregate network, Shinkafi ranked 6th out of 9 cities in Zamfara and 174th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.64
Rank in Nigeria
157th of 422
Rank in Zamfara
6th of 9

Entire Network (Aggregate)

SNDi value
2.89
Rank in Nigeria
174th of 422
Rank in Zamfara
6th of 9

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

What about similarly populated cities?

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
ShinkafiPokrovskSerra

In new street additions, Shinkafi built increasingly disconnected streets over time, while Pokrovsk built increasingly disconnected streets from 1975 through 1991-2005, then improved and Serra fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Shinkafi and Pokrovsk have been growing further apart in their street-network character since 1975.