Eruwa in context: Street-network sprawl trends

Eruwa in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
EruwaOyo (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Eruwa plotted against Oyo and Nigeria. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Eruwa's incremental SNDi rose from 2.75 to 3.47 between 1991-2005 and 2006-2020. In terms of the aggregate network, Eruwa ranked 7th out of 15 cities in Oyo and 141st out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.47
Rank in Nigeria
142nd of 422
Rank in Oyo
8th of 15

Entire Network (Aggregate)

SNDi value
2.61
Rank in Nigeria
141st of 422
Rank in Oyo
7th of 15

Rankings go from most connected to most disconnected — rank 1 is the most connected.

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
EruwaNorth LakesRudauli

While North Lakes and Rudauli both built increasingly disconnected streets from 1975 through 1991-2005, then improved, Eruwa fluctuated in its street-construction patterns in new street additions. Looking at the full network, North Lakes and Rudauli both grew more disconnected from 1975 through 1991-2005, then improved, while Eruwa became progressively more disconnected. Notably, Eruwa had a more sprawly network than Rudauli in 1975 but the two have since reversed their relative ranking.