Yola in context: Street-network sprawl trends

Yola 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
YolaAdamawa (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Yola plotted against Adamawa and Nigeria. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Yola's incremental SNDi rose from 3.18 to 3.6 between 1991-2005 and 2006-2020. In terms of the aggregate network, Yola ranked 9th out of 11 cities in Adamawa and 194th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.6
Rank in Nigeria
153rd of 422
Rank in Adamawa
6th of 11

Entire Network (Aggregate)

SNDi value
3.09
Rank in Nigeria
194th of 422
Rank in Adamawa
9th of 11

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
YolaEzhouKocaeli

In new street additions, Yola and Kocaeli both fluctuated in its street-construction patterns, while Ezhou built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Yola and Kocaeli both became progressively more disconnected, while Ezhou grew more disconnected from 1975 through 1976-1990, then improved. Yola and Ezhou have been converging in their street-network character since 1975.