Wien: region in Austria
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 Wien, Austria on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Wien as of 2014, the overall level of street-network sprawl is 0.31, which is very well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 0.13, 1.62, 2.22 and 2.95. In each period, new street development in Wien steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.49 points, but between 1991-2000 and 2001-2014, it rose by just 0.72.
Quantity of street network construction: The street network in Wien spans a total of 3408 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 0.13, which is very well-connected.
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 0.13, 0.29, 0.3 and 0.31. Overall, the SNDi of the aggregate street network has risen: the street network in Wien has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.17 points, but between 1991-2000 and 2001-2014, it rose by just 0.01.
The level of street-network sprawl in new development in Wien rose steadily. To get a sense of how street development has changed in Wien, we can consider one of its most populous cities: Vienna. None of the most populous cities follow the same trend as the region. The level of street-network sprawl in new development in Vienna peaked in 1991-2000.
How do development practices in Wien fare in comparison to others in Austria? Most recently in 2001-2014, street construction in Wien was the 6th-most disconnected out of the 6 regions in Austria. Its position in the ranks since 1975 has not changed. Wien ranked 6th in 1975, 6th in 1976-1990, 6th in 1991-2000 and 6th in 2001-2014.
As of 2014, the city with the most disconnected street network in Wien is Vienna with an SNDi of 0.46, which is relatively well-connected. Conversely, the most connected city is Vienna with an SNDi of 0.46, which is relatively well-connected. See trends for these cities: Vienna, Vienna
The level of street-network sprawl in the aggregate network in Wien rose steadily. To get a sense of how the aggregate street network has changed in Wien, we can consider one of its most populous cities: Vienna. Disconnectivity in the most populous cities in Wien follow the same region trend.
To date, Wien is the 6th-most disconnected out of the 6 regions in Austria. Its position in the ranks since 1975 has not changed. Wien ranked 6th in 1975, 6th in 1976-1990, 6th in 1991-2000 and 6th in 2001-2014.