Kyabé in context: Street-network sprawl trends

Kyabe 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
KyabeMoyen-Chari (Region)Chad (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kyabé plotted against Moyen-Chari and Chad. The SNDi of new construction in Kyabé followed a zig-zag trend with an overall decrease, compared to Moyen-Chari which rose steadily and Chad which rose steadily. Most recently, Kyabé's incremental SNDi fell from 1.75 to 1.38 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kyabé ranked 2nd out of 2 cities in Moyen-Chari and 8th out of 31 in Chad as of 2020.

New Street Additions (2006–2020)

SNDi value
1.38
Rank in Chad
6th of 31
Rank in Moyen-Chari
1st of 2

Entire Network (Aggregate)

SNDi value
1.4
Rank in Chad
8th of 31
Rank in Moyen-Chari
2nd of 2

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
KyabeYoussoufiaSurgut

In new street additions, Kyabé and Youssoufia both fluctuated in its street-construction patterns, while Surgut built increasingly disconnected streets over time. For the full network, Kyabé fluctuated in connectivity, while Youssoufia became progressively more connected and Surgut became progressively more disconnected. Notably, Kyabé had a more sprawly network than Surgut in 1975 but the two have since reversed their relative ranking.