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Annex 1. Indicator description sheets
Indicator 1 Urban density
Description Number of people per hectare of urban land (gross)
Dimension Density
Value domain 2.5–55
Base year(s) 2004
Source Area statistics
Software ArcGIS 9.2
Implementation (1) Intersect municipality layer with 10 · 10 km grid
(2) Apportion population and urban area attributes to new polygons where
municipalities have been split, based on the ratio of new size of split polygon/
size of original polygon
(3) Summarise population and urban area for all derived municipalities in a
10 · 10 km cell
(4) PCalculate indicator as per formula below
Formula
P
P
UA
with P = population, UA = urban area
Definitions Urban area: aggregate measure for residential, commercial, industrial land and land
in transportation infrastructure (= ‘Siedlungs- und Verkehrsfläche’)
References
(selected)
Population: number of people registered as usual residents in a municipality
Galster et al. (2001), Ewing et al. (2002), Frenkel and Ashkenazi (2008)
Indicator 2 Change in urban density
Description Change of urban density between two base years (percentage)
Dimension Density
Value domain -80 to 70%
Base year(s) 1996, 2004
Source Area statistics
Software ArcGIS 9.2
Implementation (1) Calculate urban densities for 1996 and 2004
(2) Calculate the rate of change between the results as per the formula below
(Continued )