Besançon in context: Street-network sprawl trends

Besancon in context

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
BesanconBourgogne-Franche-Comte (Region)France (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Besançon plotted against Bourgogne-Franche-Comté and France. While Bourgogne-Franche-Comté and France both peaked in 1991-2005, Besançon's new street additions peaked in 1991-2005. Most recently, Besançon's incremental SNDi fell from 3.47 to 3.42 between 1991-2005 and 2006-2020. In terms of the aggregate network, Besançon ranked 3rd out of 4 cities in Bourgogne-Franche-Comté and 16th out of 73 in France as of 2020.

New Street Additions (2006–2020)

SNDi value
3.42
Rank in France
46th of 73
Rank in Bourgogne-Franche-Comté
2nd of 4

Entire Network (Aggregate)

SNDi value
2.22
Rank in France
16th of 73
Rank in Bourgogne-Franche-Comté
3rd of 4

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
BesanconRishtanBasildon

In new street additions, Besançon built increasingly disconnected streets from 1975 through 1991-2005, then improved, while Rishtan built increasingly disconnected streets over time and Basildon built increasingly disconnected streets from 1975 through 1976-1990, then improved. For the full network, Besançon and Rishtan both became progressively more disconnected, while Basildon grew more disconnected from 1975 through 1976-1990, then improved.