Tambacounda in context: Street-network sprawl trends

Tambacounda in context

1.21.622.4<19751976–19901991–20052006–2020SNDi of street additions
1.21.622.4<19751976–19901991–20052006–2020SNDi of entire street network
TambacoundaSenegal (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tambacounda plotted against Senegal. The SNDi of new construction in Tambacounda rose steadily, while Senegal followed a zig-zag trend with an overall increase. Most recently, Tambacounda's incremental SNDi rose from 1.87 to 2.63 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tambacounda ranked 18th out of 25 in Senegal as of 2020.

New Street Additions (2006–2020)

SNDi value
2.63
Rank in Senegal
21st of 25

Entire Network (Aggregate)

SNDi value
1.54
Rank in Senegal
18th of 25

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
TambacoundaIndaiatubaRondonopolis

Tambacounda, Indaiatuba, and Rondonópolis all built increasingly disconnected streets over time in new street construction. The same pattern holds for the full street network. Notably, Tambacounda had a more sprawly network than Rondonópolis in 1975 but the two have since reversed their relative ranking.