Ajara in context: Street-network sprawl trends

Ajara in context

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
AjaraLagos (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Ajara plotted against Lagos and Nigeria. The SNDi of new construction in Ajara rose steadily, compared to Lagos which followed a zig-zag trend with an overall increase and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Ajara's incremental SNDi rose from 7.75 to 8.15 between 1991-2005 and 2006-2020. In terms of the aggregate network, Ajara ranked 6th out of 7 cities in Lagos and 403rd out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
8.15
Rank in Nigeria
397th of 422
Rank in Lagos
6th of 7

Entire Network (Aggregate)

SNDi value
6.37
Rank in Nigeria
403rd of 422
Rank in Lagos
6th of 7

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

What about similarly populated cities?

468<19751976–19901991–20052006–2020SNDi of street additions
468<19751976–19901991–20052006–2020SNDi of entire street network
AjaraSant Vicenc dels HortsSakon Nakhon

In new street additions, Ajara and Sakon Nakhon both built increasingly disconnected streets over time, while Sant Vicenç dels Horts built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.