Tamale in context: Street-network sprawl trends

Tamale 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
TamaleNorthern (Region)Ghana (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tamale plotted against Northern and Ghana. While Northern and Ghana both followed a zig-zag trend with an overall increase, Tamale's new street additions followed a zig-zag trend with an overall increase. Most recently, Tamale's incremental SNDi rose from 2.43 to 2.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tamale ranked 4th out of 5 cities in Northern and 13th out of 53 in Ghana as of 2020.

New Street Additions (2006–2020)

SNDi value
2.63
Rank in Ghana
11th of 53
Rank in Northern
4th of 5

Entire Network (Aggregate)

SNDi value
2.47
Rank in Ghana
13th of 53
Rank in Northern
4th of 5

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

What about similarly populated cities?

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
TamaleBajitpurMy Tho

In new street additions, Tamale and Bajitpur both fluctuated in its street-construction patterns, while Mỹ Tho built increasingly disconnected streets over time. For the full network, Tamale and Mỹ Tho both became progressively more disconnected, while Bajitpur fluctuated in connectivity.