Abakaliki 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 Abakaliki plotted against Ebonyi and Nigeria. The SNDi of new construction in Abakaliki rose steadily, compared to Ebonyi which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Abakaliki's incremental SNDi rose from 3.33 to 4.24 between 1991-2005 and 2006-2020. In terms of the aggregate network, Abakaliki ranked 4th out of 9 cities in Ebonyi and 224th 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?

• Zhangqiu, China
• Nazirhat, Bangladesh
• Wenjiang, China
• Chon Buri, Thailand
• Hechuan, China
• Indramayu, Indonesia

In new street additions, Abakaliki and Chon Buri both built increasingly disconnected streets over time, while Zhangqiu fluctuated in its street-construction patterns. For the full network, Abakaliki and Chon Buri both became progressively more disconnected, while Zhangqiu fluctuated in connectivity. Abakaliki and Zhangqiu have been growing further apart in their street-network character since 1975.