Routing API Developer's Guide

Requesting an Isoline

Use calculateisoline to calculate the area that can be reached by driving for a given time or distance. The following parameters are mandatory:

  • your authentication credentials, app_id and app_code (see Acquiring Credentials)
  • the start (start) or destination (destination) position
  • the mode, which describes the type of route calculation and whether to optimize the routing for traffic conditions or not
  • range of route (range)
  • and type of range (distance, time, consumption) (rangetype)

The request below calculates a 4km isoline around the center of Berlin. This answers the question: what area can I reach by travelling no more than 4km?

https://isoline.route.cit.api.here.com/routing/7.2/calculateisoline.json
?app_id={YOUR_APP_ID}
&app_code={YOUR_APP_CODE}
&mode=shortest;car;traffic:disabled
&start=geo!52.51578,13.37749
&range=4000
&rangetype=distance
Figure 1. Example isoline representing a travel distance of 4km from the center of Berlin.