Zuid-Holland: region in Netherlands
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 Zuid-Holland, Netherlands on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Zuid-Holland as of 2014, the overall level of street-network sprawl is 1.79, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.55, 2.27, 2.05 and 2.41. Disconnectivity in street construction in Zuid-Holland follows a zig-zag trend. In 1975, street construction was most disconnected, while construction was most connected in 2001-2014.
Quantity of street network construction: The street network in Zuid-Holland spans a total of 18790 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.55, 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 1.55, 1.73, 1.75 and 1.79. Overall, the SNDi of the aggregate street network has risen: the street network in Zuid-Holland has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.18 points, but between 1991-2000 and 2001-2014, it rose by just 0.05.
The level of street-network sprawl in new development in Zuid-Holland followed a zig-zag trend with an overall increase. To get a sense of how street development has changed in Zuid-Holland, we can consider three of its most populous cities: Rotterdam [The Hague], Leiden and Dordrecht. Out of the three cities, Leiden and Dordrecht do not follow the same trend as the region. The level of street-network sprawl in new development in Leiden peaked in 1991-2000. The level of street-network sprawl in new development in Dordrecht peaked in 1991-2000.
How do development practices in Zuid-Holland fare in comparison to others in Netherlands? Most recently in 2001-2014, street construction in Zuid-Holland was the 6th-most disconnected out of the 10 regions in Netherlands. Its position in the ranks since 1975 has fallen; relative to other regions in Netherlands, street construction in Zuid-Holland has become more connected. Zuid-Holland ranked 5th in 1975, 3rd in 1976-1990, 7th in 1991-2000 and 6th in 2001-2014.
As of 2014, the city with the most disconnected street network in Zuid-Holland is Leiden with an SNDi of 2.15, which is relatively well-connected. Conversely, the most connected city is Zoetermeer with an SNDi of 0.97, which is relatively well-connected. See trends for these cities: Zoetermeer, Leiden
The level of street-network sprawl in the aggregate network in Zuid-Holland rose steadily. To get a sense of how the aggregate street network has changed in Zuid-Holland, we can consider three of its most populous cities: Rotterdam [The Hague], Leiden and Dordrecht. Disconnectivity in the most populous cities in Zuid-Holland follow the same region trend.
To date, Zuid-Holland is the 7th-most disconnected out of the 10 regions in Netherlands. Its position in the ranks since 1975 has fallen; relative to other regions in Netherlands, the street network in Zuid-Holland has become more connected. Zuid-Holland ranked 5th in 1975, 6th in 1976-1990, 6th in 1991-2000 and 7th in 2001-2014.