Techiman in context: Street-network sprawl trends

Techiman in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
TechimanBono East (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Techiman plotted against Bono East and Ghana. The SNDi of new construction in Techiman rose steadily, compared to Bono East which rose steadily and Ghana which followed a zig-zag trend with an overall increase. Most recently, Techiman's incremental SNDi rose from 3.19 to 4.5 between 1991-2005 and 2006-2020. In terms of the aggregate network, Techiman ranked 5th out of 5 cities in Bono East and 21st out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
4.5
Rank in Ghana
24th of 53
Rank in Bono East
5th of 5

Entire Network (Aggregate)

SNDi value
3.44
Rank in Ghana
21st of 53
Rank in Bono East
5th of 5

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
TechimanIlamNguru

While Ilam and Nguru both fluctuated in its street-construction patterns, Techiman built increasingly disconnected streets over time in new street additions. For the full network, Techiman and Ilam both became progressively more disconnected, while Nguru fluctuated in connectivity. Techiman and Ilam have been growing further apart in their street-network character since 1975.