Aiyepe in context: Street-network sprawl trends

Aiyepe in context

3.244.85.6<19751976–19901991–20052006–2020SNDi of street additions
3.244.85.6<19751976–19901991–20052006–2020SNDi of entire street network
AiyepeOsun (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Aiyepe plotted against Osun and Nigeria. The SNDi of new construction in Aiyepe rose steadily, compared to Osun which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Aiyepe's incremental SNDi rose from 4.7 to 5.65 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aiyepe ranked 19th out of 19 cities in Osun and 376th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
5.65
Rank in Nigeria
328th of 422
Rank in Osun
13th of 19

Entire Network (Aggregate)

SNDi value
5.03
Rank in Nigeria
376th of 422
Rank in Osun
19th of 19

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
AiyepeTarakandiKatha

In new street additions, Aiyepe and Katha both built increasingly disconnected streets over time, while Tarakandi built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns. For the full network, Aiyepe became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards, while Tarakandi became progressively more connected and Katha became progressively more disconnected. Notably, Aiyepe had a more connected network than Tarakandi in 1975 but the two have since reversed their relative ranking.