Kelo in context: Street-network sprawl trends

Kelo in context

0.81.62.43.2<19751976–19901991–20052006–2020SNDi of street additions
0.81.62.43.2<19751976–19901991–20052006–2020SNDi of entire street network
KeloTandjile (Region)Chad (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Kelo plotted against Tandjilé and Chad. The SNDi of new construction in Kelo followed a zig-zag trend with an overall increase, compared to Tandjilé which peaked in 1991-2005 and Chad which rose steadily. Most recently, Kelo's incremental SNDi rose from 1.31 to 1.71 between 1991-2005 and 2006-2020. In terms of the aggregate network, Kelo ranked 1st out of 2 cities in Tandjilé and 4th out of 31 in Chad as of 2020.

New Street Additions (2006–2020)

SNDi value
1.71
Rank in Chad
9th of 31
Rank in Tandjilé
2nd of 2

Entire Network (Aggregate)

SNDi value
1.17
Rank in Chad
4th of 31
Rank in Tandjilé
1st of 2

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

What about similarly populated cities?

123456<19751976–19901991–20052006–2020SNDi of street additions
123456<19751976–19901991–20052006–2020SNDi of entire street network
KeloNanpurEjigbo

In new street additions, Kelo and Ejigbo both fluctuated in its street-construction patterns, while Nanpur built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Kelo and Ejigbo have been growing further apart in their street-network character since 1975.