Gwolong in context: Street-network sprawl trends

Gwolong in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
GwolongPlateau (Region)Nigeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gwolong plotted against Plateau and Nigeria. The SNDi of new construction in Gwolong rose steadily, compared to Plateau which rose steadily and Nigeria which followed a zig-zag trend with an overall increase. Most recently, Gwolong's incremental SNDi rose from 4.14 to 7.58 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gwolong ranked 7th out of 8 cities in Plateau and 254th out of 422 in Nigeria as of 2020.

New Street Additions (2006–2020)

SNDi value
7.58
Rank in Nigeria
393rd of 422
Rank in Plateau
6th of 8

Entire Network (Aggregate)

SNDi value
3.53
Rank in Nigeria
254th of 422
Rank in Plateau
7th of 8

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

What about similarly populated cities?

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
GwolongKyauktawTepatitlan

Gwolong, Kyauktaw, and Tepatitlán all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Gwolong had a more connected network than Kyauktaw in 1975 but the two have since reversed their relative ranking.