1. Recent spatial analysis work for the 4th Cohesion Report
Hugo Poelman
REGIO-GIS

2. Regional analysis and indicators
15/03/2007
4th Report on Social, Economic and Territorial Cohesion
Extensive overview of situation and trends in the regions of the EU
Relying on regional statistical data...
... but also exploring spatial analysis methods for the production of georeferenced indicators
Regional analysis and indicators

3. Accessibility within regions:
15/03/2007
Accessibility within regions:
travel time to urban/regional centres
accessibility to services of general interest
travel time to transport infrastructure nodes
Example: travel time to urban centres
cities of more than or inhabitants
Analysis example

4. Adaptation of the road network
15/03/2007
Adaptation of the road network
- EU-27 (+ neighbours)
- Crossing time of the edges
EuroGlobalMap
EuroGlobalMap and GISCO roads layer

5. Elements to estimate the crossing time of the edges
15/03/2007
Elements to estimate the crossing time of the edges
- Length of the edges
- Speed limit on the roads
- Congestion: by overlaying the UMZs
(Urban Morphological Zones)
- Average slope
Cost attributes
CROSSINGTIME =
(shape_length * slopeindex * densityindex) / (speedlimit * 1000/60)
as shape_length is given in meters and speedlimit in km/h

6. Cost attributes: Length and speed limit
15/03/2007
The length is given by the Geodatabase
(attribute shape_length given in meters because the data are projected)
The speed limit is attributed taking into account the road category and a table of speed limits for the European countries
Cost attributes: Length and speed limit

7. Cost attributes: Congestion
15/03/2007
Overlay with the Urban Morphological Zones (UMZ) to give the Density Index.
Value 1; for roads outside the UMZ
Value 2; for major roads and urban roads inside the UMZ
Value 1.5; for motorways inside the UMZ
Cost attributes: Congestion

8. Cost attributes: Average slope
15/03/2007
Overlay with a re-classified slope grid in order to give the Slope Index.
Value 1; Slope 0-5%
Value 1.2; Slope 6-10%
Value 1.5; Slope more than 11%
Cost attributes: Average slope

9. 15/03/2007
Calculated with ArcGIS Network Analyst (Service Area solver), taking into account the “Crossing Time” attribute
- Load facilities (e.g. cities)
- Define time breaks (30 minutes and 60 minutes)
- Results are polygons
Accessibility

10. Clean the output service area polygons
15/03/2007
Clean the output service area polygons
The results are polygons that do not overlap and do not exceed the land surface.
Areas outside the resulting area are considered to be at more than 1 hour distance
Accessibility
results in 3 classes:
0-30 minutes
30-60 minutes
more than 60 minutes

11. 15/03/2007
Calculate the population that falls in the different time-distance zone for each NUTS 3 region (using grid of disaggregated population)
Calculate the percentage of the total population of each NUTS 3 region located in these time-distance zones
Accessibility

12. 15/03/2007

13. Analysis helps to identify more/less remote NUTS3 regions
15/03/2007
Analysis helps to identify more/less remote NUTS3 regions
Results remain indicative: constraints related to data and methodology
density and time stamp of road network
precision of DEM
selection and definition of cities (Urban Audit / UMZ centroids)
population disaggregation grid versus « real » population grid
Results

14. Approach can be tested/used in other contexts
15/03/2007
Approach can be tested/used in other contexts
location of points of interest
location and level of service of infrastructure nodes
Enhancement of completeness, quality and timeliness of several datasets will improve results
Conclusion
points of interest: eg hospitals, universities
infrastructure nodes: airports, importance assessed in terms of number of passenger flights