Otun 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 Otun plotted against Ekiti and Nigeria. The SNDi of new construction in Otun rose steadily, compared to Ekiti which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Otun's incremental SNDi rose from 2.51 to 2.86 between 1991-2005 and 2006-2020. In terms of the aggregate network, Otun ranked 3rd out of 17 cities in Ekiti and 130th 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?

• Zhenxiong, China
• Hailun, China
• Pécs, Hungary
• Mangaldoi, India
• 길주읍, North Korea
• Barguna, Bangladesh

In new street additions, Otun built increasingly disconnected streets over time, while Zhenxiong fluctuated in its street-construction patterns and Mangaldoi built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.