Wenchi in context: Street-network sprawl trends

Wenchi in context

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
WenchiBono (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Wenchi plotted against Bono and Ghana. The SNDi of new construction in Wenchi rose steadily, compared to Bono which followed a zig-zag trend with an overall increase and Ghana which followed a zig-zag trend with an overall increase. Most recently, Wenchi's incremental SNDi rose from 4.02 to 5.92 between 1991-2005 and 2006-2020. In terms of the aggregate network, Wenchi ranked 1st out of 4 cities in Bono and 14th out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
5.92
Rank in Ghana
39th of 53
Rank in Bono
4th of 4

Entire Network (Aggregate)

SNDi value
3.1
Rank in Ghana
14th of 53
Rank in Bono
1st of 4

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
WenchiLukonzolwaLahladpur

In new street additions, Wenchi built increasingly disconnected streets over time, while Lukonzolwa fluctuated in its street-construction patterns and Lahladpur built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Wenchi became progressively more disconnected, while Lukonzolwa became progressively more disconnected and Lahladpur became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Wenchi and Lahladpur have been converging in their street-network character since 1975.