Ankpa in context: Street-network sprawl trends
Ankpa in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ankpa plotted against Kogi and Nigeria. The SNDi of new construction in Ankpa rose steadily, compared to Kogi which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ankpa's incremental SNDi rose from 2.65 to 4.22 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ankpa ranked 2nd out of 11 cities in Kogi and 58th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.22
- Rank in Nigeria
- 209th of 422
- Rank in Kogi
- 3rd of 11
Entire Network (Aggregate)
- SNDi value
- 1.8
- Rank in Nigeria
- 58th of 422
- Rank in Kogi
- 2nd of 11
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Kotdwar, India
- Karadeniz Ereğli, Turkey
- Tsuchiura, Japan
- Raxaul, India
- Gong'an, China
- Hagen, Germany
In new street additions, Ankpa and Raxaul both built increasingly disconnected streets over time, while Kotdwar fluctuated in its street-construction patterns. For the full street network, though, all three cities follow the same trend. Ankpa and Kotdwar have been growing further apart in their street-network character since 1975.