Zango Bichi in context: Street-network sprawl trends

Zango Bichi in context

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
Zango BichiKano (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Zango Bichi plotted against Kano and Nigeria. While Kano and Nigeria both followed a zig-zag trend with an overall increase, Zango Bichi's new street additions followed a zig-zag trend with an overall increase. Most recently, Zango Bichi's incremental SNDi rose from 1.27 to 1.67 between 1991-2005 and 2006-2020. In terms of the aggregate network, Zango Bichi ranked 2nd out of 14 cities in Kano and 21st out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
1.67
Rank in Nigeria
33rd of 422
Rank in Kano
5th of 14

Entire Network (Aggregate)

SNDi value
1.37
Rank in Nigeria
21st of 422
Rank in Kano
2nd of 14

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
Zango BichiMolepololeGimbichu

While Molepolole and Gimbichu both built increasingly disconnected streets over time, Zango Bichi fluctuated in its street-construction patterns in new street additions. For the full street network, though, all three cities follow the same trend. Zango Bichi and Gimbichu have been growing further apart in their street-network character since 1975.