Oued Ellil in context: Street-network sprawl trends

Oued Ellil in context

2.42.733.3<19751976–19901991–20052006–2020SNDi of street additions
2.42.733.3<19751976–19901991–20052006–2020SNDi of entire street network
Oued EllilManubah (Region)Tunisia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Oued Ellil plotted against Manubah and Tunisia. The SNDi of new construction in Oued Ellil followed a zig-zag trend with an overall increase, compared to Manubah which followed a zig-zag trend with an overall increase and Tunisia which peaked in 1976-1990. Most recently, Oued Ellil's incremental SNDi rose from 2.8 to 3.29 between 1991-2005 and 2006-2020. In terms of the aggregate network, Oued Ellil ranked 1st out of 1 cities in Manubah and 21st out of 24 in Tunisia as of 2020.

New Street Additions (2006–2020)

SNDi value
3.29
Rank in Tunisia
21st of 24
Rank in Manubah
1st of 1

Entire Network (Aggregate)

SNDi value
2.79
Rank in Tunisia
21st of 24
Rank in Manubah
1st of 1

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

What about similarly populated cities?

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Oued EllilJhundoVezirkopru

In new street additions, Oued Ellil fluctuated in its street-construction patterns, while Jhundo fluctuated in its street-construction patterns and Vezirköprü built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Oued Ellil became progressively more disconnected, while Jhundo fluctuated in connectivity and Vezirköprü grew more disconnected from 1975 through 1976-1990, then improved. Notably, Oued Ellil had a more connected network than Vezirköprü in 1975 but the two have since reversed their relative ranking.