Zuru in context: Street-network sprawl trends

Zuru in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
ZuruKebbi (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zuru plotted against Kebbi and Nigeria. The SNDi of new construction in Zuru rose steadily, compared to Kebbi which followed a zig-zag trend with an overall increase and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Zuru's incremental SNDi rose from 2.39 to 2.71 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zuru ranked 7th out of 12 cities in Kebbi and 97th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.71
Rank in Nigeria
93rd of 422
Rank in Kebbi
8th of 12

Entire Network (Aggregate)

SNDi value
2.28
Rank in Nigeria
97th of 422
Rank in Kebbi
7th of 12

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

What about similarly populated cities?

36912<19751976–19901991–20052006–2020SNDi of street additions
36912<19751976–19901991–20052006–2020SNDi of entire street network
ZuruKolpinoDakshin Gopalnagar

In new street additions, Zuru built increasingly disconnected streets over time, while Kolpino built increasingly disconnected streets from 1975 through 1991-2005, then improved and Dakshin Gopalnagar built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Zuru became progressively more disconnected, while Kolpino fluctuated in connectivity and Dakshin Gopalnagar grew more disconnected from 1975 through 1976-1990, then improved. Notably, Zuru had a more connected network than Kolpino in 1975 but the two have since reversed their relative ranking.