Methods to Measure Map Readability

Several countries are currently working on setting up geoportals as part of their national spatial data infrastructure (SDI). A key ability of these geoportals is that the user should be able to view (and download) data from several sources from one access point. This will certainly make the access to geospatial data easier. However, there is also a cartographic challenge that has to be solved. Since the user will be able to view data from several sources at the same time we have to establish methods that support cartographic visualisation of data from multiple sources. For example, this study is part of a Swedish national project the planning portal. This portal will enable the user, e.g. a local planner, to view planning information overlaid on a topographic map.