Trentino-Alto Adige: region in Italy
What exactly constitutes the spatial extent of the city? For these aggregations, we used the Global Human Settlement Layer Urban Center Database (GHS-UCDB) to define the boundaries of the city. These cities -- or urban centers -- cover areas that are densely populated and built-up, and so may extend beyond the spatial borders of these cities that we may be familiar with. The GHS area is shaded in blue.
View Trentino-Alto Adige, Italy on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Trentino-Alto Adige as of 2014, the overall level of street-network sprawl is 3.56, which is highly disconnected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 2.89, 3.96, 5.26 and 4.27. Street construction in Trentino-Alto Adige increased in disconnectivity initially but has since improved. The streets constructed in 1991-2000 were the most disconnected.
Quantity of street network construction: The street network in Trentino-Alto Adige spans a total of 10824 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 3.96, which is highly disconnected.
Effect on the aggregate network: New construction in each period adds to the total stock of streets, but does not change streets that have already been built. Therefore, it has a limited effect on the street network as a whole. The SNDis of the aggregate street network in the respective time periods are 2.89, 3.43, 3.53 and 3.56. Overall, the SNDi of the aggregate street network has risen: the street network in Trentino-Alto Adige has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.54 points, but between 1991-2000 and 2001-2014, it rose by just 0.03.
The level of street-network sprawl in new development in Trentino-Alto Adige peaked in 1991-2000. To get a sense of how street development has changed in Trentino-Alto Adige, we can consider two of its most populous cities: Bolzano - Bozen and Trento. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Bolzano - Bozen followed a zig-zag trend with an overall decrease. The level of street-network sprawl in new development in Trento peaked in 1976-1990.
How do development practices in Trentino-Alto Adige fare in comparison to others in Italy? Most recently in 2001-2014, street construction in Trentino-Alto Adige was the 12th-most disconnected out of the 17 regions in Italy. Its position in the ranks since 1975 has fallen; relative to other regions in Italy, street construction in Trentino-Alto Adige has become more connected. Trentino-Alto Adige ranked 6th in 1975, 7th in 1976-1990, 3rd in 1991-2000 and 12th in 2001-2014.
As of 2014, the city with the most disconnected street network in Trentino-Alto Adige is Trento with an SNDi of 3.4, which is highly disconnected. Conversely, the most connected city is Bolzano - Bozen with an SNDi of 1.56, which is relatively well-connected. See trends for these cities: Bolzano - Bozen, Trento
The level of street-network sprawl in the aggregate network in Trentino-Alto Adige rose steadily. To get a sense of how the aggregate street network has changed in Trentino-Alto Adige, we can consider two of its most populous cities: Bolzano - Bozen and Trento. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in the aggregate network in Bolzano - Bozen peaked in 1976-1990. The level of street-network sprawl in the aggregate network in Trento peaked in 1991-2000.
To date, Trentino-Alto Adige is the 5th-most disconnected out of the 17 regions in Italy. Its position in the ranks since 1975 has risen; relative to other regions in Italy, the street network in Trentino-Alto Adige has become more disconnected. Trentino-Alto Adige ranked 6th in 1975, 5th in 1976-1990, 5th in 1991-2000 and 5th in 2001-2014.