Manzil Bourguiba in context: Street-network sprawl trends

Manzil Bourguiba in context

1.82.433.6<19751976–19901991–20052006–2020SNDi of street additions
1.82.433.6<19751976–19901991–20052006–2020SNDi of entire street network
Manzil BourguibaBizerte (Region)Tunisia (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Manzil Bourguiba plotted against Bizerte and Tunisia. While Bizerte and Tunisia both peaked in 1976-1990, Manzil Bourguiba's new street additions peaked in 1976-1990. Most recently, Manzil Bourguiba's incremental SNDi fell from 2.17 to 2.06 between 1991-2005 and 2006-2020. In terms of the aggregate network, Manzil Bourguiba ranked 1st out of 2 cities in Bizerte and 7th out of 24 in Tunisia as of 2020.

New Street Additions (2006–2020)

SNDi value
2.06
Rank in Tunisia
11th of 24
Rank in Bizerte
1st of 2

Entire Network (Aggregate)

SNDi value
1.91
Rank in Tunisia
7th of 24
Rank in Bizerte
1st of 2

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

What about similarly populated cities?

1.62.43.24<19751976–19901991–20052006–2020SNDi of street additions
1.62.43.24<19751976–19901991–20052006–2020SNDi of entire street network
Manzil BourguibaYumaTallahassee

In new street additions, Manzil Bourguiba built increasingly disconnected streets from 1975 through 1976-1990, then improved, while Yuma built increasingly disconnected streets over time and Tallahassee built increasingly disconnected streets from 1975 through 1991-2005, then improved. For the full street network, though, all three cities follow the same trend.