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When generating a route the server is not using the off-ramps to make a u-turn but rather moving all the way down the highway which causes the route to be much longer than what is possible. See here


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Whereas in Google Maps you get this https://www.google.co.za/maps/dir/20.0100%0941.4795/19.9910%0941.5190/@20.0041348,41.4936417,15z/data=!4m10!4m9!1m3!2m2!1d41.4795!2d20.01!1m3!2m2!1d41.519!2d19.991!3e0

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The routing server is not making use of the off-ramps

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I am using OSM server for routing inside an application that is calculating distances by route. Any suggestions on how this can be fixed?

asked 19 May '22, 08:27

Jaco-Ben's gravatar image

accept rate: 0%

The North/South Trunk road is tagged with construction=trunk. I guess OSRM is avoiding that road because of that. Please remove that tag from all the segments of that road that have been opened to traffic.

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answered 19 May '22, 10:48

TZorn's gravatar image

accept rate: 15%

I downloaded this pbf file https://download.geofabrik.de/asia/gcc-states.html, created my own custom routing graph and now the issue is not reproducible.

(20 May '22, 13:03) Jaco-Ben

Spot on. I only wanted to add: use the debug map to find which way might be the culprit. It is not linked from openstreetmap.org, but using routing.openstreetmap.de you will find it: https://routing.openstreetmap.de/debug/car.html#16/19.9928/41.5196

(21 May '22, 17:11) datendelphin
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question asked: 19 May '22, 08:27

question was seen: 683 times

last updated: 21 May '22, 17:11

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