The data are in geographic projection with a resolution of 30 arc seconds. The format is integer ESRITM GRID format with pixel values representing minutes of travel time. The files are stored in a zip archive. The archive also contains an ESRITM Shapefile of the populated places. Other files include Metadata (XML), and ArcView 3 Projects and Legends (APR and AVL).
Nelson, A. (2008) Estimated travel time to the nearest city of 50,000 or more people in year 2000. Global Environment Monitoring Unit - Joint Research Centre of the European Commission, Ispra Italy. Available at https://forobs.jrc.ec.europa.eu/products/gam/ (accessed dd/mm/yyyy)
|Dataset name||Data download||Image link|
|Estimated travel time to the nearest city of 50,000 or more people in year 2000||Download||Image|
This is an A0 sized poster of the global accessibility map in PDF format. It includes some general results from the Agglomeration Index analysis and a study of land cover patterns around cities.
Nelson, A. (2008) Travel time to major cities: A global map of Accessibility. Office for Official Publications of the European Communities, Luxembourg. DOI:10.2788/95835, ISBN:978-92-79-09771-3.
|File name||File download||Image link|
|Travel time to major cities: A global map of accessibility||Download||Image|