Maiduguri in context: Street-network sprawl trends

Maiduguri 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
MaiduguriBorno (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Maiduguri plotted against Borno and Nigeria. The SNDi of new construction in Maiduguri fell steadily, compared to Borno which followed a zig-zag trend with an overall increase and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Maiduguri's incremental SNDi fell from 2.14 to 2.12 between 1991-2005 and 2006-2020. In terms of the aggregate network, Maiduguri ranked 12th out of 16 cities in Borno and 98th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.12
Rank in Nigeria
57th of 422
Rank in Borno
5th of 16

Entire Network (Aggregate)

SNDi value
2.28
Rank in Nigeria
98th of 422
Rank in Borno
12th of 16

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
MaiduguriCologneDa Nang

In new street additions, Maiduguri built increasingly connected streets over time, while Cologne built increasingly disconnected streets over time and Đà Nẵng built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Maiduguri became progressively more connected, while Cologne became progressively more disconnected and Đà Nẵng grew more disconnected from 1975 through 1991-2005, then improved. Maiduguri and Cologne have been converging in their street-network character since 1975.