Omu Aran in context: Street-network sprawl trends

Omu Aran in context

33.544.5<19751976–19901991–20052006–2020SNDi of street additions
33.544.5<19751976–19901991–20052006–2020SNDi of entire street network
Omu AranKwara (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Omu Aran plotted against Kwara and Nigeria. The SNDi of new construction in Omu Aran peaked in 1991-2005, compared to Kwara which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Omu Aran's incremental SNDi fell from 3.89 to 3.89 between 1991-2005 and 2006-2020. In terms of the aggregate network, Omu Aran ranked 5th out of 7 cities in Kwara and 278th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.89
Rank in Nigeria
178th of 422
Rank in Kwara
4th of 7

Entire Network (Aggregate)

SNDi value
3.72
Rank in Nigeria
278th of 422
Rank in Kwara
5th of 7

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
Omu AranSitiawanMianzhu

In new street additions, Omu Aran built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Sitiawan built increasingly disconnected streets over time and Mianzhu built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Omu Aran and Sitiawan both became progressively more disconnected, while Mianzhu grew more disconnected from 1975 through 1991-2005, then improved. Omu Aran and Sitiawan have been growing further apart in their street-network character since 1975.