Agadez in context: Street-network sprawl trends

Agadez in context

1.522.5<19751976–19901991–20052006–2020SNDi of street additions
1.522.5<19751976–19901991–20052006–2020SNDi of entire street network
AgadezNiger (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Agadez plotted against Niger. Both Agadez and Niger follow the same trend. Most recently, Agadez's incremental SNDi rose from 1.68 to 1.99 between 1991-2005 and 2006-2020. In terms of the aggregate network, Agadez ranked 13th out of 33 in Niger as of 2020.

New Street Additions (2006–2020)

SNDi value
1.99
Rank in Niger
12th of 33

Entire Network (Aggregate)

SNDi value
1.49
Rank in Niger
13th of 33

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
AgadezTlemcenMuntilan

In new street additions, Agadez built increasingly disconnected streets over time, while Tlemcen fluctuated in its street-construction patterns and Muntilan built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.