Sarh in context: Street-network sprawl trends

Sarh in context

1.42.12.83.5<19751976–19901991–20052006–2020SNDi of street additions
1.42.12.83.5<19751976–19901991–20052006–2020SNDi of entire street network
SarhMoyen-Chari (Region)Chad (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sarh plotted against Moyen-Chari and Chad. The SNDi of new construction in Sarh followed a zig-zag trend with an overall increase, compared to Moyen-Chari which rose steadily and Chad which rose steadily. Most recently, Sarh's incremental SNDi rose from 1.38 to 1.89 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sarh ranked 1st out of 2 cities in Moyen-Chari and 7th out of 31 in Chad as of 2020.

New Street Additions (2006–2020)

SNDi value
1.89
Rank in Chad
12th of 31
Rank in Moyen-Chari
2nd of 2

Entire Network (Aggregate)

SNDi value
1.29
Rank in Chad
7th of 31
Rank in Moyen-Chari
1st of 2

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
SarhKosiceQugou

In new street additions, Sarh and Qugou both fluctuated in its street-construction patterns, while Košice built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend.