# Percentage of Built-up Area (PBA) 2009 (LEAC Grid), Nov. 2016

Percentage of built-up area (PBA) measures how large the built-up areas are (in % of the landscape).
PBA is a component of the new urban sprawl metric, named "Weighted Urban Proliferation“ (WUP). WUP is based on the following definition of urban sprawl: the more area is built over in a given landscape (amount of built-up area) and the more dispersed this built-up area is in the landscape (spatial configuration), and the higher the uptake of built-up area per inhabitant or job (lower utilisation intensity in the built-up area), the higher the degree of urban sprawl.
Weighted Urban Proliferation (WUP) metric has three components: the percentage of built-up areas (PBA), the dispersion of the built-up areas (DIS), and land uptake per person (LUP).
Values for landscapes of differing sizes can be directly compared because PBA is an intensive metric, i.e., the value does not depend on the size of the landscape.
The PBA dataset is used in EEA's Urban Sprawl work indicating urbanisation impacts on the land system. It covers EEA39.https://sdi.eea.europa.eu/geonetwork/srv/api/records/0c925f24-663d-4e29-8630-da61a8673368


[More information](https://sdi.eea.europa.eu/catalogue/srv/api/records/0c925f24-663d-4e29-8630-da61a8673368)
    