Oke Iho in context: Street-network sprawl trends

Oke Iho in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
Oke IhoOyo (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Oke Iho plotted against Oyo and Nigeria. The SNDi of new construction in Oke Iho rose steadily, compared to Oyo which followed a zig-zag trend with an overall increase and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Oke Iho's incremental SNDi rose from 3.3 to 3.86 between 1991-2005 and 2006-2020. In terms of the aggregate network, Oke Iho ranked 9th out of 15 cities in Oyo and 152nd out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.86
Rank in Nigeria
175th of 422
Rank in Oyo
10th of 15

Entire Network (Aggregate)

SNDi value
2.73
Rank in Nigeria
152nd of 422
Rank in Oyo
9th of 15

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Oke IhoRzeszowIksan-si

In new street additions, Oke Iho and Rzeszów both built increasingly disconnected streets over time, while Iksan-si fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Notably, Oke Iho had a more connected network than Rzeszów in 1975 but the two have since reversed their relative ranking.