Bougouni in context: Street-network sprawl trends

Bougouni in context

1.62.43.2<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.2<19751976–19901991–20052006–2020SNDi of entire street network
BougouniSikasso (Region)Mali (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Bougouni plotted against Sikasso and Mali. The SNDi of new construction in Bougouni rose steadily, compared to Sikasso which rose steadily and Mali which followed a zig-zag trend with an overall increase. Most recently, Bougouni's incremental SNDi rose from 2.11 to 2.4 between 1991-2005 and 2006-2020. In terms of the aggregate network, Bougouni ranked 1st out of 5 cities in Sikasso and 6th out of 22 in Mali as of 2020.

New Street Additions (2006–2020)

SNDi value
2.4
Rank in Mali
10th of 22
Rank in Sikasso
1st of 5

Entire Network (Aggregate)

SNDi value
1.53
Rank in Mali
6th of 22
Rank in Sikasso
1st of 5

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

What about similarly populated cities?

12345<19751976–19901991–20052006–2020SNDi of street additions
12345<19751976–19901991–20052006–2020SNDi of entire street network
BougouniLeesburgTatvan

In new street additions, Bougouni built increasingly disconnected streets over time, while Leesburg built increasingly disconnected streets from 1975 through 1991-2005, then improved and Tatvan built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns. For the full network, Bougouni and Leesburg both became progressively more disconnected, while Tatvan became more connected from 1975 through 1976-1990, then grew more sprawly from 1976-1990 onwards. Bougouni and Leesburg have been growing further apart in their street-network character since 1975.