Kouroussa in context: Street-network sprawl trends

Kouroussa in context

1.82.73.64.5<19751976–19901991–20052006–2020SNDi of street additions
1.82.73.64.5<19751976–19901991–20052006–2020SNDi of entire street network
KouroussaKankan (Region)Guinea (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kouroussa plotted against Kankan and Guinea. The SNDi of new construction in Kouroussa followed a zig-zag trend with an overall increase, compared to Kankan which followed a zig-zag trend with an overall increase and Guinea which rose steadily. Most recently, Kouroussa's incremental SNDi rose from 3.1 to 3.54 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kouroussa ranked 7th out of 8 cities in Kankan and 11th out of 24 in Guinea as of 2020.

New Street Additions (2006–2020)

SNDi value
3.54
Rank in Guinea
11th of 24
Rank in Kankan
8th of 8

Entire Network (Aggregate)

SNDi value
3.26
Rank in Guinea
11th of 24
Rank in Kankan
7th of 8

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
KouroussaZegouaColina

In new street additions, Kouroussa fluctuated in its street-construction patterns, while Zégoua built increasingly disconnected streets over time and Colina built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Kouroussa and Zégoua both became progressively more disconnected, while Colina grew more disconnected from 1975 through 1991-2005, then improved. Kouroussa and Colina have been converging in their street-network character since 1975.