Igbo Ora in context: Street-network sprawl trends

Igbo Ora in context

234<19751976–19901991–20052006–2020SNDi of street additions
234<19751976–19901991–20052006–2020SNDi of entire street network
Igbo OraOyo (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Igbo Ora plotted against Oyo and Nigeria. The SNDi of new construction in Igbo Ora 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, Igbo Ora's incremental SNDi rose from 2.25 to 2.79 between 1991-2005 and 2006-2020. In terms of the aggregate network, Igbo Ora ranked 4th out of 15 cities in Oyo and 78th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
2.79
Rank in Nigeria
97th of 422
Rank in Oyo
4th of 15

Entire Network (Aggregate)

SNDi value
2.03
Rank in Nigeria
78th of 422
Rank in Oyo
4th of 15

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

What about similarly populated cities?

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
Igbo OraMalindiPhung

In new street additions, Igbo Ora and Malindi both built increasingly disconnected streets over time, while Phùng built increasingly connected streets over time. For the full network, Igbo Ora and Malindi both became progressively more disconnected, while Phùng became progressively more connected. Igbo Ora and Malindi have been converging in their street-network character since 1975.