Ode-Omu in context: Street-network sprawl trends

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ode-Omu plotted against Osun and Nigeria. The SNDi of new construction in Ode-Omu rose steadily, compared to Osun which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ode-Omu's incremental SNDi rose from 4.17 to 5.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ode-Omu ranked 10th out of 19 cities in Osun and 310th out of 422 in Nigeria as of 2020.

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

What about similarly populated cities?

• Arihah, Syria
• Sinjar, Iraq
• Yogomaia, Sierra Leone
• 富安镇, China
• Shaliuhe, China
• Gawaki, Afghanistan

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