Elmina in context: Street-network sprawl trends

Elmina in context

345678<19751976–19901991–20052006–2020SNDi of street additions
345678<19751976–19901991–20052006–2020SNDi of entire street network
ElminaCentral (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Elmina plotted against Central and Ghana. All three follow the same trend in new construction, suggesting a shared regional pattern of development. Most recently, Elmina's incremental SNDi rose from 4.39 to 7.88 between 1991-2005 and 2006-2020. In terms of the aggregate network, Elmina ranked 7th out of 7 cities in Central and 49th out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
7.88
Rank in Ghana
52nd of 53
Rank in Central
7th of 7

Entire Network (Aggregate)

SNDi value
5.06
Rank in Ghana
49th of 53
Rank in Central
7th of 7

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

What about similarly populated cities?

036912<19751976–19901991–20052006–2020SNDi of street additions
036912<19751976–19901991–20052006–2020SNDi of entire street network
ElminaNijoniBahadurganj

In new street additions, Elmina and Bahadurganj both fluctuated in its street-construction patterns, while Nijoni fluctuated in its street-construction patterns. For the full network, Elmina and Bahadurganj both fluctuated in connectivity, while Nijoni became progressively more connected. Notably, Elmina had a more connected network than Nijoni in 1975 but the two have since reversed their relative ranking.