Routing API Developer's Guide

Requesting a distance based isoline

To calculate a distance based isoline, specify distance as rangetype. Range will then be specified in meters. Mode can be either shortest or fastest. A different area can be reached by always driving the fastest possible route, than always driving the shortest possible route. The request below will calculate a 4km isoline around the center of Berlin with shortest mode. 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
&rangetype=distance
&start=geo!52.51578,13.37749
&range=4000
Figure 1. Example isoline representing a travel distance of 4km from the center of Berlin.

Drivers normally want to drive the fastest possible route. It is possible to calculate an isoline which simulates this behavior, while limiting it to a given distance. The request below will calculate a 4km isoline around the center of Berlin with fastest mode. This answers the question: what area can I reach by travelling no more than 4km, while driving the fastest possible route?

https://isoline.route.cit.api.here.com
/routing/7.2/calculateisoline.json
?app_id={YOUR_APP_ID}
&app_code={YOUR_APP_CODE}
&mode=fastest;car;traffic:disabled
&rangetype=distance
&start=geo!52.51578,13.37749
&range=4000
Figure 2. Example isoline representing a travel distance of 4km from the center of Berlin while driving the fastest possible route.