Sokoto in context: Street-network sprawl trends

Sokoto 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
SokotoNigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sokoto plotted against Nigeria. The SNDi of new construction in Sokoto peaked in 1976-1990, while Nigeria followed a zig-zag trend with an overall increase. Most recently, Sokoto's incremental SNDi fell from 2.3 to 2.22 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sokoto ranked 106th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.22
Rank in Nigeria
63rd of 422

Entire Network (Aggregate)

SNDi value
2.35
Rank in Nigeria
106th of 422

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

What about similarly populated cities?

1.522.53<19751976–19901991–20052006–2020SNDi of street additions
1.522.53<19751976–19901991–20052006–2020SNDi of entire street network
SokotoAntwerpNyala

In new street additions, Sokoto and Nyala both built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Antwerp built increasingly disconnected streets over time. Looking at the full network, Antwerp and Nyala both became progressively more disconnected, while Sokoto grew more disconnected from 1975 through 1976-1990, then improved. Sokoto and Antwerp have been converging in their street-network character since 1975.