Onne in context: Street-network sprawl trends
Onne in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Onne plotted against Rivers and Nigeria. The SNDi of new construction in Onne peaked in 1991-2005, compared to Rivers which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Onne's incremental SNDi fell from 4.54 to 4.44 between 1991-2005 and 2006-2020. In terms of the aggregate network, Onne ranked 11th out of 28 cities in Rivers and 286th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 4.44
- Rank in Nigeria
- 226th of 422
- Rank in Rivers
- 5th of 28
Entire Network (Aggregate)
- SNDi value
- 3.77
- Rank in Nigeria
- 286th of 422
- Rank in Rivers
- 11th of 28
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Komsomolsk-on-Amur, Russia
- Coro, Venezuela
- Maner, India
- Depalpur, Pakistan
- Hotan, China
- Portoviejo, Ecuador
In new street additions, Onne built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Komsomolsk-on-Amur fluctuated in its street-construction patterns and Depalpur built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Notably, Onne had a more connected network than Depalpur in 1975 but the two have since reversed their relative ranking.