The level of street-network sprawl in new development in Hauts-de-France peaked in 1991-2005. To get a sense of how street development has changed in Hauts-de-France, we can consider three of its most populous cities: Lille, Lens and Dunkirk. Out of the three cities, Lens and Dunkirk do not follow the same trend as the region. The level of street-network sprawl in new development in Lens followed a zig-zag trend with an overall increase. The level of street-network sprawl in new development in Dunkirk rose steadily.

How do development practices in Hauts-de-France fare in comparison to others in France? Most recently in 2006-2020, street construction in Hauts-de-France was the 6th-most disconnected out of the 13 regions in France. Its position in the ranks since 1975 has fallen; relative to other regions in France, street construction in Hauts-de-France has become more connected. Hauts-de-France ranked 4th in 1975, 4th in 1976-1990, 8th in 1991-2005 and 6th in 2006-2020.

As of 2020, the city with the most disconnected street network in Hauts-de-France is Creil with an SNDi of 2.83, which is relatively well-connected. Conversely, the most connected city is Arras with an SNDi of 2.01, which is well-connected. See trends for these cities: Arras, Creil

The level of street-network sprawl in the aggregate network in Hauts-de-France rose steadily. To get a sense of how the aggregate street network has changed in Hauts-de-France, we can consider three of its most populous cities: Lille, Lens and Dunkirk. Disconnectivity in the most populous cities in Hauts-de-France follow the same region trend.

To date, Hauts-de-France is the 2nd-most disconnected out of the 13 regions in France. Its position in the ranks since 1975 has risen; relative to other regions in France, the street network in Hauts-de-France has become more disconnected. Hauts-de-France ranked 4th in 1975, 3rd in 1976-1990, 2nd in 1991-2005 and 2nd in 2006-2020.