Sètiguiya in context: Street-network sprawl trends

Setiguiya in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sètiguiya plotted against Kankan and Guinea. The SNDi of new construction in Sètiguiya was at its lowest in 1991-2005, compared to Kankan which followed a zig-zag trend with an overall increase and Guinea which rose steadily. Most recently, Sètiguiya's incremental SNDi rose from 1.11 to 1.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sètiguiya ranked 2nd out of 8 cities in Kankan and 2nd out of 24 in Guinea as of 2020.

New Street Additions (2006–2020)

SNDi value
1.31
Rank in Guinea
2nd of 24
Rank in Kankan
2nd of 8

Entire Network (Aggregate)

SNDi value
1.26
Rank in Guinea
2nd of 24
Rank in Kankan
2nd of 8

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
SetiguiyaTrapeang PrasatMado Gashi

In new street additions, Sètiguiya built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Trapeang Prasat fluctuated in its street-construction patterns and Mado Gashi fluctuated in its street-construction patterns. For the full network, Sètiguiya became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards, while Trapeang Prasat grew more disconnected from 1975 through 1976-1990, then improved and Mado Gashi fluctuated in connectivity. Sètiguiya and Trapeang Prasat have been converging in their street-network character since 1975.