Valenciennes in context: Street-network sprawl trends

Valenciennes in context

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

The chart above shows SNDi trends for new street additions (left panel) and the entire network (right panel), with Valenciennes plotted against Hauts-de-France and France. The SNDi of new construction in Valenciennes followed a zig-zag trend with an overall increase, compared to Hauts-de-France which peaked in 1991-2005 and France which peaked in 1991-2005. Most recently, Valenciennes's incremental SNDi rose from 3.06 to 3.7 between 1991-2005 and 2006-2020. In terms of the aggregate network, Valenciennes ranked 8th out of 10 cities in Hauts-de-France and 39th out of 73 in France as of 2020.

New Street Additions (2006–2020)

SNDi value
3.7
Rank in France
50th of 73
Rank in Hauts-de-France
8th of 10

Entire Network (Aggregate)

SNDi value
2.6
Rank in France
39th of 73
Rank in Hauts-de-France
8th of 10

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

What about similarly populated cities?

2.433.64.2<19751976–19901991–20052006–2020SNDi of street additions
2.433.64.2<19751976–19901991–20052006–2020SNDi of entire street network
ValenciennesRathUnjha

In new street additions, Valenciennes and Unjha both fluctuated in its street-construction patterns, while Rath built increasingly disconnected streets over time. For the full street network, though, all three cities follow the same trend. Valenciennes and Rath have been converging in their street-network character since 1975.