Dunkwa-on-Offin in context: Street-network sprawl trends

Dunkwa-on-Offin in context

3.64.55.46.3<19751976–19901991–20052006–2020SNDi of street additions
3.64.55.46.3<19751976–19901991–20052006–2020SNDi of entire street network
Dunkwa-on-OffinCentral (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Dunkwa-on-Offin plotted against Central and Ghana. The SNDi of new construction in Dunkwa-on-Offin rose steadily, compared to Central which followed a zig-zag trend with an overall increase and Ghana which followed a zig-zag trend with an overall increase. Most recently, Dunkwa-on-Offin's incremental SNDi rose from 4.78 to 6.23 between 1991-2005 and 2006-2020. In terms of the aggregate network, Dunkwa-on-Offin ranked 4th out of 7 cities in Central and 40th out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
6.23
Rank in Ghana
45th of 53
Rank in Central
4th of 7

Entire Network (Aggregate)

SNDi value
4.64
Rank in Ghana
40th of 53
Rank in Central
4th of 7

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

What about similarly populated cities?

3456<19751976–19901991–20052006–2020SNDi of street additions
3456<19751976–19901991–20052006–2020SNDi of entire street network
Dunkwa-on-OffinThippanampattiArga Makmur

In new street additions, Dunkwa-on-Offin and Thippanampatti both built increasingly disconnected streets over time, while Arga Makmur built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend. Dunkwa-on-Offin and Thippanampatti have been growing further apart in their street-network character since 1975.