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  • Just got back from a week's touring in the Midi-Pyrenees, using a Garmin Edge Touring for navigation. It kind of worked, but rather than giving me turn-by-turn directions, the Garmin just displayed the routes I had planned as a pink(ish) line and expected me to spot the turns myself.

    I was expecting directions and information about how much longer I had to ride on a specific road before a turning/roundabout/whatever.

    I also encountered the "Route Calculation Error" message every time I clicked "Ride" on one of my prepared routes. The route would calculate, get to 100% and then display "Route Calculation Error" shortly or immediately afterwards.

    The basemaps I was using came from http://garmin.openstreetmap.nl/. I was using the "Routable Bicycle" versions.

    I plotted the routes using RideWithGPS, downloading the TCX files to the Garmin. I had used the "Optimise for driving" option (to avoid being taken down anything resembling a bridlepath/farm track/river bed) and the "Add/Remove control point" function (to manually switch to quieter roads).

    Got a "Route Calculation Error" every time (although as I say, the basic route still displayed).

    Any ideas why? I wondered if it might be to do with "driving" directions on a "routeable bicycle" basemap?

    But if you don't use driving directions, how can you avoid the footpaths/riverbeds that RideWith GPS delights in sending me down?

  • A couple of things, on the edge series generally you are much better with either a gpx track file or a gpx route file.
    Ridewithgps being one of the better routing websites, I would choose bike rather than driving and then when plotting the route choose enough intermediate points in judicious places to ensure that it does not go down tracks.
    Driving directions on routable bicycle works, so I suspect it is the tcx file on the edge.
    I personnally find the generic routable version of the map easier to read on the screen than the routable bicycle version.

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