Ijebu-Igbo in context: Street-network sprawl trends
Ijebu-Igbo in context
The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ijebu-Igbo plotted against Ogun and Nigeria. The SNDi of new construction in Ijebu-Igbo rose steadily, compared to Ogun which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ijebu-Igbo's incremental SNDi rose from 4.82 to 5.76 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ijebu-Igbo ranked 13th out of 16 cities in Ogun and 313th out of 422 in Nigeria as of 2020.
New Street Additions (2006–2020)
- SNDi value
- 5.76
- Rank in Nigeria
- 333rd of 422
- Rank in Ogun
- 15th of 16
Entire Network (Aggregate)
- SNDi value
- 4.01
- Rank in Nigeria
- 313th of 422
- Rank in Ogun
- 13th of 16
Rankings go from most connected to most disconnected — rank 1 is the most connected.
What about similarly populated cities?
- Bejaia, Algeria
- Tuban, Indonesia
- Patuakhali, Bangladesh
- Ezbet Nazif, Egypt
- Wuhua, China
- San Cristóbal, Dominican Republic
In new street additions, Ijebu-Igbo and Bejaia both built increasingly disconnected streets over time, while Ezbet Nazif built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Ijebu-Igbo and Ezbet Nazif have been converging in their street-network character since 1975.