[GraphHopper] Turn restrictions

[Timothy Lehner]

Hello all,

I was using GraphHopper for routing when I noticed a route involving an
illegal turn (the junction only allows traffic to drive straight through,
but the route instructed the driver to take a right turn)

The OpenStreetMap file has the junction tagged with:
restriction ("only_straight_on")

I start up graph hopper as follows:
==========================
        hopper = new GraphHopper().forServer();

        hopper.setEnableTurnRestrictions(true);

        hopper.setInMemory(true);
        hopper.setOSMFile(osmFile);
        // where to store graphhopper files?
        hopper.setGraphHopperLocation(graphFolder);
        hopper.setEncodingManager(new EncodingManager("car"));

        hopper.disableCHShortcuts();

        // now this can take minutes if it imports or a few seconds for
loading
        // of course this is dependent on the area you import
        hopper.importOrLoad();
===========================

So I'm pretty sure that GraphHopper should be considering turn
restrictions...

Is this a bug?

I only need routing using a simple Dijkstra algo without CH...

Many thanks,
Tim
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