Drive Time Isochrones – An Example Using Finnish Airports

Drive Time Isochrones – An Example Using Finnish Airports | Anita Graser
▻http://anitagraser.com/2011/02/12/drive-time-isochrones

http://underdark.files.wordpress.com/2011/02/fin_airports3.png

I’ve already shown how to create drive time isochrones for one network node based on pgRouting and QGIS. Today, I’ll show how to create drive time isochrones for a set of points – in this case all airports in Finland.

#cartographie #gis #postgis #qgis