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Improvements in turn restrictions

14
Apr

The latest version of mkgmap now has much better support for restriction relations.

Here are the main things that are newly implemented:

  • Restrictions that prohibit going between two node via a particular way.
  • restrictions no_entry or no_exit
  • specific vehicle type, e.g. type=restriction:motorcar or restriction:motorcar=no_u_turn
  • fixes possible error if different roads connect the same nodes (old code possibly saved the restriction for the wrong road)
  • detects obsolete restrictions, e.g. when a oneway doesn't allow to enter the road or when the restiction applies to motor_vehicles only and the road is a cycleway.
  • if the style creates multiple routable ways for one OSM way, the restriction is added for all needed combinations

There are a lot of bug fixes too, so it should all work a lot more smoothly. Use version r3189 or higher for all the fixes.

Posted by steve on 14 Apr 2014

Latest commits

  • mkgmap-r4278 correct code that checks for existing ovm_*.img,.
    13 feb 2019
  • mkgmap-r4277 partly revert r4276: don't print message.
    13 feb 2019
  • mkgmap-r4276 Print useful message when no input file was given.
    13 feb 2019
  • mkgmap-r4275 improve reader for polish (*.mp) format:.
    12 feb 2019
  • mkgmap-r4274 revert changes from r4273, not the right place to do this.
    12 feb 2019
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