Duekoue in context: Street-network sprawl trends

Duekoue in context

2.43.244.8<19751976–19901991–20052006–2020SNDi of street additions
2.43.244.8<19751976–19901991–20052006–2020SNDi of entire street network
DuekoueMontagnes (Region)Cote d'Ivoire (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Duekoue plotted against Montagnes and Côte d'Ivoire. While Montagnes and Côte d'Ivoire both followed a zig-zag trend with an overall increase, Duekoue's new street additions followed a zig-zag trend with an overall increase. Most recently, Duekoue's incremental SNDi rose from 2.74 to 3.25 between 1991-2005 and 2006-2020. In terms of the aggregate network, Duekoue ranked 1st out of 4 cities in Montagnes and 27th out of 39 in Côte d'Ivoire as of 2020.

New Street Additions (2006–2020)

SNDi value
3.25
Rank in Côte d'Ivoire
15th of 39
Rank in Montagnes
1st of 4

Entire Network (Aggregate)

SNDi value
2.87
Rank in Côte d'Ivoire
27th of 39
Rank in Montagnes
1st of 4

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

What about similarly populated cities?

2.12.83.54.2<19751976–19901991–20052006–2020SNDi of street additions
2.12.83.54.2<19751976–19901991–20052006–2020SNDi of entire street network
DuekoueJiutaiVolgodonsk

In new street additions, Duekoue fluctuated in its street-construction patterns, while Jiutai built increasingly disconnected streets from 1975 through 1991-2005, then improved and Volgodonsk built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Duekoue and Jiutai have been converging in their street-network character since 1975.