Anié in context: Street-network sprawl trends

Anie in context

2468<19751976–19901991–20052006–2020SNDi of street additions
2468<19751976–19901991–20052006–2020SNDi of entire street network
AniePlateaux (Region)Togo (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Anié plotted against Plateaux and Togo. While Plateaux and Togo both followed a zig-zag trend with an overall increase, Anié's new street additions followed a zig-zag trend with an overall decrease. Most recently, Anié's incremental SNDi rose from 7.23 to 7.82 between 1991-2005 and 2006-2020. In terms of the aggregate network, Anié ranked 4th out of 4 cities in Plateaux and 17th out of 17 in Togo as of 2020.

New Street Additions (2006–2020)

SNDi value
7.82
Rank in Togo
17th of 17
Rank in Plateaux
4th of 4

Entire Network (Aggregate)

SNDi value
7.83
Rank in Togo
17th of 17
Rank in Plateaux
4th of 4

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

What about similarly populated cities?

481216<19751976–19901991–20052006–2020SNDi of street additions
481216<19751976–19901991–20052006–2020SNDi of entire street network
AnieGhatalLa Spezia

In new street additions, Anié fluctuated in its street-construction patterns, while Ghatal built increasingly connected streets from 1975 through 1976-1990, then shifted to more disconnected patterns and La Spezia built increasingly disconnected streets from 1975 through 1991-2005, then improved. Looking at the full network, Ghatal and La Spezia both became progressively more disconnected, while Anié fluctuated in connectivity. Notably, Anié had a more sprawly network than Ghatal in 1975 but the two have since reversed their relative ranking.