Aba in context: Street-network sprawl trends
Aba in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Aba plotted against Abia and Nigeria. The SNDi of new construction in Aba rose steadily, compared to Abia which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Aba's incremental SNDi rose from 5.01 to 5.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Aba ranked 5th out of 9 cities in Abia and 299th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.4
- Rank in Nigeria
- 303rd of 422
- Rank in Abia
- 6th of 9
Entire Network (Aggregate)
- SNDi value
- 3.92
- Rank in Nigeria
- 299th of 422
- Rank in Abia
- 5th of 9
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Bishkek, Kyrgyzstan
- Prague, Czechia
- Lyon, France
- Zhangjiagang, China
- Belgrade, Serbia
- Cochabamba, Bolivia
In new street additions, Aba built increasingly disconnected streets over time, while Bishkek fluctuated in its street-construction patterns and Zhangjiagang built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Aba and Bishkek both became progressively more disconnected, while Zhangjiagang grew more disconnected from 1975 through 1991-2005, then improved. Aba and Bishkek have been growing further apart in their street-network character since 1975.