Torodi in context: Street-network sprawl trends

Torodi in context

2345<19751976–19901991–20052006–2020SNDi of street additions
2345<19751976–19901991–20052006–2020SNDi of entire street network
TorodiTillabery (Region)Niger (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Torodi plotted against Tillabéry and Niger. The SNDi of new construction in Torodi was at its lowest in 1991-2005, compared to Tillabéry which peaked in 1976-1990 and Niger which rose steadily. Most recently, Torodi's incremental SNDi rose from 3.7 to 5.1 between 1991-2005 and 2006-2020. In terms of the aggregate network, Torodi ranked 3rd out of 4 cities in Tillabéry and 31st out of 33 in Niger as of 2020.

New Street Additions (2006–2020)

SNDi value
5.1
Rank in Niger
30th of 33
Rank in Tillabéry
4th of 4

Entire Network (Aggregate)

SNDi value
4.56
Rank in Niger
31st of 33
Rank in Tillabéry
3rd of 4

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

What about similarly populated cities?

246810<19751976–19901991–20052006–2020SNDi of street additions
246810<19751976–19901991–20052006–2020SNDi of entire street network
TorodiMarmarisKumta

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