Gouré in context: Street-network sprawl trends

Goure in context

1.21.82.43<19751976–19901991–20052006–2020SNDi of street additions
1.21.82.43<19751976–19901991–20052006–2020SNDi of entire street network
GoureZinder (Region)Niger (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Gouré plotted against Zinder and Niger. The SNDi of new construction in Gouré was at its lowest in 1991-2005, compared to Zinder which rose steadily and Niger which rose steadily. Most recently, Gouré's incremental SNDi rose from 1.06 to 1.46 between 1991-2005 and 2006-2020. In terms of the aggregate network, Gouré ranked 1st out of 5 cities in Zinder and 1st out of 33 in Niger as of 2020.

New Street Additions (2006–2020)

SNDi value
1.46
Rank in Niger
6th of 33
Rank in Zinder
1st of 5

Entire Network (Aggregate)

SNDi value
1.2
Rank in Niger
1st of 33
Rank in Zinder
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
GoureAdetikopeZarzis

In new street additions, Gouré and Adétikopé both built increasingly connected streets from 1975 through 1991-2005, then shifted to more disconnected patterns, while Zarzis built increasingly connected streets over time. Looking at the full network, Adétikopé and Zarzis both became progressively more connected, while Gouré became more connected from 1975 through 1991-2005, then grew more sprawly from 1991-2005 onwards. Gouré and Adétikopé have been converging in their street-network character since 1975.