Tlemcen in context: Street-network sprawl trends

Tlemcen in context

2.733.33.63.9<19751976–19901991–20052006–2020SNDi of street additions
2.733.33.63.9<19751976–19901991–20052006–2020SNDi of entire street network
TlemcenAlgeria (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Tlemcen plotted against Algeria. Both Tlemcen and Algeria follow the same trend. Most recently, Tlemcen's incremental SNDi rose from 3.56 to 3.62 between 1991-2005 and 2006-2020. In terms of the aggregate network, Tlemcen ranked 81st out of 109 in Algeria as of 2020.

New Street Additions (2006–2020)

SNDi value
3.62
Rank in Algeria
83rd of 109

Entire Network (Aggregate)

SNDi value
3.29
Rank in Algeria
81st of 109

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
TlemcenTandaAgadez

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