Erlangen: city in Bayern, Germany
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 Erlangen, Germany on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Erlangen as of 2014, the overall level of street-network sprawl is 1.11, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.11, 1.14, nan and 0.9. Data was not available in 1991-2000.
Quantity of street network construction: The street network in Erlangen spans a total of 376 kilometers. It is dominated by roads constructed prior to 1975. These roads have an SNDi of 1.11, 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 1.11, 1.12, 1.12 and 1.11. The aggregate street network in Erlangen increased in disconnectivity initially,but the trend has turned around after 1990.
Erlangen and Bayern do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Bayern peaked in 1991-2000.
How do development practices in Erlangen fare in comparison to others in Bayern? Most recently in 2001-2014, street construction in Erlangen was the 10th-most disconnected out of the 13 cities in Bayern. Its position in the ranks since 1975 has fallen; relative to other cities in Bayern, street construction in Erlangen has become more connected. Erlangen ranked 7th in 1975, 12th in 1976-1990 and 10th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.
Erlangen and Germany do not follow the same trend in the disconnectivity of their street network constructions. There was not enough data from the city, while the SNDi of street constructions in Germany peaked in 1991-2000.
How do development practices in Erlangen fare in comparison to others in Germany? Most recently in 2001-2014, street construction in Erlangen was the 77th-most disconnected out of the 87 cities in Germany. Its position in the ranks since 1975 has fallen; relative to other cities in Germany, street construction in Erlangen has become more connected. Erlangen ranked 38th in 1975, 82nd in 1976-1990 and 77th in 2001-2014. There was no ranking in 1991-2000 due to unavailable data.
Erlangen and Bayern do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Erlangen peaked in 1976-1990, while the SNDi of street constructions in Bayern rose steadily.
To date, Erlangen is the 9th-most disconnected out of the 13 cities in Bayern. Its position in the ranks since 1975 has fallen; relative to other cities in Bayern, the street network in Erlangen has become more connected. Erlangen ranked 7th in 1975, 9th in 1976-1990, 9th in 1991-2000 and 9th in 2001-2014.
Erlangen and Germany do not follow the same trend in the disconnectivity of their aggregate street networks. The SNDi in Erlangen peaked in 1976-1990, while the SNDi of street constructions in Germany rose steadily.
To date, Erlangen is the 50th-most disconnected out of the 87 cities in Germany. Its position in the ranks since 1975 has fallen; relative to other cities in Germany, the street network in Erlangen has become more connected. Erlangen ranked 38th in 1975, 48th in 1976-1990, 48th in 1991-2000 and 50th in 2001-2014.
As of 2015, Erlangen had a built-up area of 19.48 square kilometers, and a population of 87153 people.
These are some other cities with approximately the same population: