Bodo 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 Bodo plotted against Rivers and Nigeria. The SNDi of new construction in Bodo peaked in 1991-2005, compared to Rivers which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Bodo's incremental SNDi fell from 4.06 to 4.04 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bodo ranked 6th out of 28 cities in Rivers and 250th 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?

• Rasra, India
• Maidstone, United Kingdom
• Esna, Egypt
• Xin'an, China
• Tenkasi, India
• Troyes, France

In new street additions, Bodo built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rasra built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and Xin'an fluctuated in its street-construction patterns. For the full network, Bodo became progressively more disconnected, while Rasra became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards and Xin'an grew more disconnected from 1975 through 1976-1990, then improved. Bodo and Rasra have been converging in their street-network character since 1975.