Sfax in context: Street-network sprawl trends

Sfax in context

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
SfaxTunisia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Sfax plotted against Tunisia. Both Sfax and Tunisia follow the same trend. Most recently, Sfax's incremental SNDi fell from 4.29 to 3.31 between 1991-2005 and 2006-2020. In terms of the aggregate network, Sfax ranked 23rd out of 24 in Tunisia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.31
Rank in Tunisia
22nd of 24

Entire Network (Aggregate)

SNDi value
4.2
Rank in Tunisia
23rd of 24

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

What about similarly populated cities?

23456<19751976–19901991–20052006–2020SNDi of street additions
23456<19751976–19901991–20052006–2020SNDi of entire street network
SfaxLong XuyenBouake

In new street additions, Sfax built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Long Xuyên built increasingly disconnected streets from 1975 through 1991-2005, then improved and Bouaké fluctuated in its street-construction patterns. Looking at the full network, Long Xuyên and Bouaké both became progressively more disconnected, while Sfax grew more disconnected from 1975 through 1976-1990, then improved. Notably, Sfax had a more sprawly network than Long Xuyên in 1975 but the two have since reversed their relative ranking.