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Urban Morphological Zones v. 2006An improved dataset for urban analysis
Roger Milego i AgràsETC-TE
Workshop on Land Accounts and Urban MorphologyBellaterra, 12th July 2006
• “A set of urban areas laying less than 200m apart”• Urban areas defined from land cover classes
contributing to the urban tissue and function.
– 111 – Continuous urban fabric– 112 – Discontinuous urban fabric– 121 – Industrial or commercial units– 141 – Green urban areas
– 123 (Port areas), 124 (Airports) and 142 (Sport and leisure facilities), if they are neighbours to the core classes or to one of them touching the core classes. Enlarged core classes
– 122 (Road and rail networks) and 511 (Water courses), when neighbours to UMZ 1st step, cut by 300m buffer.
– Forests & scrub (311,312,313,322,323,324), when they are completely within the core classes.
UMZ definition
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Core classes
Procedural steps
1) CLC2000 reclassification
Core classesPorts, Airports and sport facilitiesTransportation and riversForests & scrub
VEC
TO
RIS
ATIO
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Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Procedural steps
2) Addition of ports, airports and sport facilities to the core classes
Core classes
Ports, airports…
Selection by neighbourhood (iterative process)Merge
Enlarged core classes
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Procedural steps
3) Addition of roads, railways and rivers to the enlarged core classes
Enlarged core classesRoads, railways, rivers
Selection by neighbourhoodClip by 300m buffer around enlarged core classes
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Merge
Enlarged core classes + roads, railways and rivers
Procedural steps
4) Addition of forest and scrub classes fully within the core classes
Enlarged c.c. + roads…Forests & scrub
Selection (fully inside core classes)
Merge
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Pre-UMZ rasterisation
Procedural steps
5) UMZ built-up: expansion and shrinking processes
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
Rasterised Pre-UMZ
EXPANSION by 1 pixel (100m)SHRINKING by 1 pixel (100m)
Vectorisation
UMZ v. 2006
Attribute assignment
Commune codes: intersection with EuroBoundaryMap Jan’06
Attribute assignment
Population figures: intersection with JRC’s 2001 Population density grid (made by Javier Gallego). Result: population number within every single UMZ.
CY,BA,MK,AL: population data from citypopulation.de for main cities (in general, above 5000 inhabitants)
Further steps
• UMZ denomination: i.e. based on main city or main cities.
• Other attributes addition.• Linkage to statistics.• Calculation of UMZ90 based on CLC90
revised.• Calculation of changes between UMZ90 and
UMZ2000.
Workshop on Land Accounts and Urban Morphology, UAB, 12th
July 06
THANKS!