For bicyles: I know of four outdoors GPS devices that do this, using on-board OSM maps:
- Garmin edge touring - Garmin edge 1000 - Mio 300 - Teasi one And then there is the naviki.org web site: - just enter a trip A-B, select your bicycle type (except "shortest route") and click SEND. - click ADD DESTINATION and enter A to get a trip A-B-A - click ROUND TRIP - Your are done. The results may vary from one try to the next for the same route Volker Padova/Italy >
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