Ijebu-Ode 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 Ijebu-Ode plotted against Ogun and Nigeria. The SNDi of new construction in Ijebu-Ode rose steadily, compared to Ogun which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ijebu-Ode's incremental SNDi rose from 3.57 to 4.81 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ijebu-Ode ranked 3rd out of 16 cities in Ogun and 186th 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?

• Enshi, China
• Shihezi, China
• Kadapa, India
• Daska, Pakistan
• Xianyou, China
• Mahesana, India

In new street additions, Ijebu-Ode and Daska both built increasingly disconnected streets over time, while Enshi built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Ijebu-Ode and Daska have been growing further apart in their street-network character since 1975.