Salaga in context: Street-network sprawl trends

Salaga in context

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
SalagaSavannah (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Salaga plotted against Savannah and Ghana. The SNDi of new construction in Salaga was at its lowest in 1976-1990, compared to Savannah which was at its lowest in 1976-1990 and Ghana which followed a zig-zag trend with an overall increase. Most recently, Salaga's incremental SNDi rose from 1.5 to 2.33 between 1991-2005 and 2006-2020. In terms of the aggregate network, Salaga ranked 1st out of 1 cities in Savannah and 5th out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
2.33
Rank in Ghana
7th of 53
Rank in Savannah
1st of 1

Entire Network (Aggregate)

SNDi value
1.84
Rank in Ghana
5th of 53
Rank in Savannah
1st of 1

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

What about similarly populated cities?

04812<19751976–19901991–20052006–2020SNDi of street additions
04812<19751976–19901991–20052006–2020SNDi of entire street network
SalagaDurgapurHekou

While Durgapur and Hekou both fluctuated in its street-construction patterns, Salaga built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns in new street additions. Looking at the full network, Durgapur and Hekou both fluctuated in connectivity, while Salaga became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Notably, Salaga had a more sprawly network than Hekou in 1975 but the two have since reversed their relative ranking.