Context
The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in France, for both new street additions (left) and the aggregate street network (right).
France in context: Street-network sprawl of new development
The level of street-network sprawl in new development in France peaked in 1991-2005. To get a sense of how street development has changed in France, we can consider three of its most populous regions: Île-de-France, Auvergne-Rhône-Alpes and Provence-Alpes-Côte d'Azur. Out of the three regions, Île-de-France does not follow the same trend as the country. The level of street-network sprawl in new development in Île-de-France peaked in 1976-1990.
How do development practices in France fare in comparison to others in the world? Most recently in 2006-2020, street construction in France was the 68th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, street construction in France has become more disconnected. France ranked 74th in 1975, 83rd in 1976-1990, 102nd in 1991-2005 and 68th in 2006-2020.
The largest city in France is Paris, with a population of 9168800 people. Taking into account the entire (i.e. aggregate) street network in Paris as of 2020, the overall level of street-network sprawl is 2.16, which is well-connected. The level of street-network sprawl in new development in Paris peaked in 1991-2005.
France in context: Aggregate street-network sprawl
As of 2020, the city with the most disconnected street network in France is Marignane with an SNDi of 4.81, which is sprawly. Conversely, the most connected city is Saint-Nazaire with an SNDi of 1.68, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: Saint-Nazaire, Marignane.
The level of street-network sprawl in the aggregate network in France rose steadily. To get a sense of how the aggregate street network has changed in France, we can consider three of its most populous regions: Île-de-France, Auvergne-Rhône-Alpes and Provence-Alpes-Côte d'Azur. Disconnectivity in the most populous cities in France follow the same country trend.
To date, France is the 64th-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, the street network in France has become more disconnected. France ranked 74th in 1975, 68th in 1976-1990, 72nd in 1991-2005 and 64th in 2006-2020.
The largest city in France is Paris, with a population of 9168800 people. Taking into account the entire (i.e. aggregate) street network in Paris as of 2020, the overall level of street-network sprawl is 2.16, which is well-connected. The level of street-network sprawl in the aggregate network in Paris rose steadily.