34. Isochrones and calculating area
Video Tutorial
In this tutorial
Use the TravelTime plugin to create isochrone polygons, which show the area that is within a certain travel time to a point by a specified mode of transit (in this example, 5 minutes walking distance from a subway station). Apply merge, dissolve, and clip geoprocessing tools. Calculate and divide the area of the resulting isochrone by the area of the larger community district to obtain the percentage of the community district that is within a 5 minute walk to a subway station.
Timestamps (Click a link to start that segment in a new window)
0:00 - 2:57: Create a shapefile of a single community district and clip subways to that community district
2:58 - 12:19: Create an isochrone
12:20 - 13:32: Additional analysis possibilities
13:32 - 16:42: Calculate the area of the isochrone as a percentage of the community district
Data downloads
Subway stations: