Castilla y León: region in Spain
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 Castilla y León, Spain on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Castilla y León as of 2014, the overall level of street-network sprawl is 1.75, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.33, 1.73, 2.48 and 2.28. Street construction in Castilla y León 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 Castilla y León spans a total of 74795 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 1.73, which is relatively 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 1.33, 1.6, 1.7 and 1.75. Overall, the SNDi of the aggregate street network has risen: the street network in Castilla y León has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.27 points, but between 1991-2000 and 2001-2014, it rose by just 0.05.
The level of street-network sprawl in new development in Castilla y León peaked in 1991-2000. To get a sense of how street development has changed in Castilla y León, we can consider three of its most populous cities: Valladolid, Salamanca and León. Disconnectivity in the most populous cities in Castilla y León follow the same region trend.
How do development practices in Castilla y León fare in comparison to others in Spain? Most recently in 2001-2014, street construction in Castilla y León was the 12th-most disconnected out of the 18 regions in Spain. Its position in the ranks since 1975 has fallen; relative to other regions in Spain, street construction in Castilla y León has become more connected. Castilla y León ranked 10th in 1975, 14th in 1976-1990, 13th in 1991-2000 and 12th in 2001-2014.
As of 2014, the city with the most disconnected street network in Castilla y León is León with an SNDi of 1.18, which is relatively well-connected. Conversely, the most connected city is Burgos with an SNDi of 0.04, which is very well-connected. See trends for these cities: Burgos, León
The level of street-network sprawl in the aggregate network in Castilla y León rose steadily. To get a sense of how the aggregate street network has changed in Castilla y León, we can consider three of its most populous cities: Valladolid, Salamanca and León. Disconnectivity in the most populous cities in Castilla y León follow the same region trend.
To date, Castilla y León is the 12th-most disconnected out of the 18 regions in Spain. Its position in the ranks since 1975 has fallen; relative to other regions in Spain, the street network in Castilla y León has become more connected. Castilla y León ranked 10th in 1975, 10th in 1976-1990, 10th in 1991-2000 and 12th in 2001-2014.