Greece
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 Greece on the sprawlmap
Most recent snapshot: Taking into account the entire (i.e. aggregate) street network in Greece as of 2014, the overall level of street-network sprawl is 2.01, which is relatively well-connected.
Trends in street network construction: The SNDis of street construction for the respective time periods are 1.14, 2.92, 3.97 and 4.41. In each period, new street development in Greece steadily grows more disconnected than in the last. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 1.78 points, but between 1991-2000 and 2001-2014, it rose by just 0.44.
Quantity of street network construction: The street network in Greece spans a total of 134998 kilometers. It is dominated by roads constructed in 1976-1990. These roads have an SNDi of 2.92, which is in the 40th to 60th percentile of disconnectedness.
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 1.14, 1.79, 1.9 and 2.01. Overall, the SNDi of the aggregate street network has risen: the street network in Greece has become more disconnected. This increase has slowed: between 1975 and 1976-1990, SNDi rose by 0.65 points, but between 1991-2000 and 2001-2014, it rose by just 0.11.
The level of street-network sprawl in new development in Greece rose steadily. To get a sense of how street development has changed in Greece, we can consider three of its most populous regions: Attica, Macedonia and Thrace and Thessaly and Central Greece. Disconnectivity in the most populous cities in Greece follow the same country trend.
How do development practices in Greece fare in comparison to others in the world? Most recently in 2001-2014, street construction in Greece was the 75th-most disconnected out of the 155 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, street construction in Greece has become more disconnected. Greece ranked 142nd in 1975, 100th in 1976-1990, 81st in 1991-2000 and 75th in 2001-2014.
The largest city in Greece is Athens, with a population of 3315200 people. Taking into account the entire (i.e. aggregate) street network in Athens as of 2014, the overall level of street-network sprawl is 0.05, which is very well-connected. The level of street-network sprawl in new development in Athens peaked in 1991-2000.
As of 2014, the city with the most disconnected street network in Greece is Patras with an SNDi of 2.32, which is in the 40th to 60th percentile of disconnectedness. Conversely, the most connected city is Athens with an SNDi of 0.05, which is very well-connected. See trends for these cities: Athens, Patras
The level of street-network sprawl in the aggregate network in Greece rose steadily. To get a sense of how the aggregate street network has changed in Greece, we can consider three of its most populous regions: Attica, Macedonia and Thrace and Thessaly and Central Greece. Disconnectivity in the most populous cities in Greece follow the same country trend.
To date, Greece is the 136th-most disconnected out of the 155 countries in the world. Its position in the ranks since 1975 has risen; relative to other countries in the world, the street network in Greece has become more disconnected. Greece ranked 142nd in 1975, 135th in 1976-1990, 136th in 1991-2000 and 136th in 2001-2014.
The largest city in Greece is Athens, with a population of 3315200 people. Taking into account the entire (i.e. aggregate) street network in Athens as of 2014, the overall level of street-network sprawl is 0.05, which is very well-connected. The level of street-network sprawl in the aggregate network in Athens rose steadily.