OpenStreetMap

ryebread's Diary

TIL about OSRM debug map

Posted by ryebread on 19 May 2016 in English.

A set of turns bypassing a roundabout I reconfigured recently was disliked by OSRM, instead sending the cars via the actual roundabout:

Take the roundabout

Daniel Patterson @ OSRM #2421 directed me towards a debug OSRM map showing that the roundabout links without ‘‘maxspeed’’ tag were categorized with default speeds of ~25 km/h (~16 mph) while the roundabout tagged with 20 mph (32 km/h) provided a faster way.

OSRM Debug

So, take a look at http://map.project-osrm.org/debug/ if OSRM seems to ignore a better route.

Location: West Bloomfield Township, Oakland County, Michigan, United States

Discussion

Comment from literan on 20 May 2016 at 10:42

Thank You, http://map.project-osrm.org/debug/ is very good instrument. Fixed some awesome bugs in Moscow, Russia with it…

Comment from skorasaurus on 31 July 2016 at 23:33

thanks for posting the debug page for OSRM, I never knew about it :)

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