Context
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.
How do development practices in Italy fare in comparison to others in the world? Most recently in 2006-2020, street construction in Italy was the 91st-most disconnected out of the 179 countries in the world. Its position in the ranks since 1975 has fallen; relative to other countries in the world, street construction in Italy has become more connected. Italy ranked 85th in 1975, 105th in 1976-1990, 110th in 1991-2005 and 91st in 2006-2020.
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.
To date, Italy is the 78th-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 Italy has become more disconnected. Italy ranked 85th in 1975, 83rd in 1976-1990, 86th in 1991-2005 and 78th in 2006-2020.
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.