Ire in context: Street-network sprawl trends
Ire in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ire plotted against Osun and Nigeria. The SNDi of new construction in Ire rose steadily, compared to Osun which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ire's incremental SNDi rose from 5.48 to 5.93 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ire ranked 17th out of 19 cities in Osun and 365th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.93
- Rank in Nigeria
- 343rd of 422
- Rank in Osun
- 15th of 19
Entire Network (Aggregate)
- SNDi value
- 4.79
- Rank in Nigeria
- 365th of 422
- Rank in Osun
- 17th of 19
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
While Umuarama and Ain Mlila both fluctuated in its street-construction patterns, Ire built increasingly disconnected streets over time in new street additions. For the full network, Ire and Umuarama both became progressively more disconnected, while Ain Mlila fluctuated in connectivity. Ire and Umuarama have been growing further apart in their street-network character since 1975.