Context

246<19751976–19901991–20052006–2020SNDi of street additions
246<19751976–19901991–20052006–2020SNDi of entire street network
Anzio (most disconnected)Altamura (most connected)

The chart above shows the evolution of street network disconnectedness of the most connected and most disconnected cities in Italy, for both new street additions (left) and the aggregate street network (right).

Italy in context: Street-network sprawl of new development

The level of street-network sprawl in new development in Italy peaked in 1991-2005. To get a sense of how street development has changed in Italy, we can consider three of its most populous regions: Lombardia, Campania and Lazio. Out of the three regions, Lombardia and Lazio do not follow the same trend as the country. The level of street-network sprawl in new development in Lombardia peaked in 1976-1990. The level of street-network sprawl in new development in Lazio rose steadily.

The largest city in Italy is Milan, with a population of 3099400 people. Taking into account the entire (i.e. aggregate) street network in Milan as of 2020, the overall level of street-network sprawl is 2.45, which is relatively well-connected. The level of street-network sprawl in new development in Milan peaked in 1991-2005.

Italy in context: Aggregate street-network sprawl

As of 2020, the city with the most disconnected street network in Italy is Anzio with an SNDi of 4.67, which is sprawly. Conversely, the most connected city is Altamura with an SNDi of 1.2, which is very well-connected. See these two cities’ trends in the above graph, or dive deeper into each: Altamura, Anzio.

The level of street-network sprawl in the aggregate network in Italy rose steadily. To get a sense of how the aggregate street network has changed in Italy, we can consider three of its most populous regions: Lombardia, Campania and Lazio. Disconnectivity in the most populous cities in Italy follow the same country trend.

The largest city in Italy is Milan, with a population of 3099400 people. Taking into account the entire (i.e. aggregate) street network in Milan as of 2020, the overall level of street-network sprawl is 2.45, which is relatively well-connected. The level of street-network sprawl in the aggregate network in Milan rose steadily.