Poitiers in context: Street-network sprawl trends

Poitiers in context

2.533.54<19751976–19901991–20052006–2020SNDi of street additions
2.533.54<19751976–19901991–20052006–2020SNDi of entire street network
PoitiersNouvelle-Aquitaine (Region)France (Country)

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Poitiers plotted against Nouvelle-Aquitaine and France. The SNDi of new construction in Poitiers rose steadily, compared to Nouvelle-Aquitaine which rose steadily and France which peaked in 1991-2005. Most recently, Poitiers's incremental SNDi rose from 2.87 to 3.2 between 1991-2005 and 2006-2020. In terms of the aggregate network, Poitiers ranked 7th out of 7 cities in Nouvelle-Aquitaine and 50th out of 73 in France as of 2020.

New Street Additions (2006–2020)

SNDi value
3.2
Rank in France
36th of 73
Rank in Nouvelle-Aquitaine
4th of 7

Entire Network (Aggregate)

SNDi value
2.83
Rank in France
50th of 73
Rank in Nouvelle-Aquitaine
7th of 7

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

What about similarly populated cities?

1234<19751976–19901991–20052006–2020SNDi of street additions
1234<19751976–19901991–20052006–2020SNDi of entire street network
PoitiersChowk AzamMawana

In new street additions, Poitiers built increasingly disconnected streets over time, while Chowk Azam fluctuated in its street-construction patterns and Mawana fluctuated in its street-construction patterns. For the full network, Poitiers became progressively more disconnected, while Chowk Azam fluctuated in connectivity and Mawana became progressively more connected.