I noticed that ORS produces unrealistically quick drivetimes for highways where lanes = 1. Here is an example, along a section of picturesque but winding single track road in the Highlands of Scotland
ORS estimates this 15.8km route can be driven (default car profile) in 11m40s, which is an average speed of 81kmh. That is absurd and ridiculous when you consider the road is single track with passing places, see photo here.
ORS at just under 12 mins is plainly wrong. This issue is replicated on all roads in Scotland where lanes = 1. There is a #maxspeed tag of 60mph which is technically the legal limit in the UK, but it would not be possible to drive that fast in real life. So, please can ORS find a way to modify realistic travel speed
Proposed solution
Please revise road speed calculations for single track highways, they are too fast and ORS is hopelessly inaccurate for this use case
TheGreatRefrigerator
commented
3 weeks ago
Is there an existing issue for this?
Problem description
I noticed that ORS produces unrealistically quick drivetimes for highways where lanes = 1. Here is an example, along a section of picturesque but winding single track road in the Highlands of Scotland
https://maps.openrouteservice.org/#/directions/-5.303352136110836,57.604555011028495/-5.50109239525144,57.54281578965259/data/55,130,32,198,15,97,4,224,38,9,96,59,2,24,5,192,166,6,113,0,184,64,90,1,88,3,160,25,128,6,83,76,32,38,1,25,72,13,142,187,200,3,137,128,105,8,29,152,199,200,1,100,34,60,139,114,52,218,8,9,200,64,55,17,98,132,199,150,147,84,172,154,132,234,12,29,207,161,65,146,234,243,109,49,173,66,210,66,113,1,0,3,170,120,17,19,97,202,0,23,148,0,182,185,74,223,182,128,128,3,55,128,1,183,69,193,5,134,135,128,3,114,64,7,55,195,6,70,129,177,4,15,70,15,70,135,68,67,4,139,195,204,134,246,247,205,135,69,129,0,5,241,170,0
ORS estimates this 15.8km route can be driven (default car profile) in 11m40s, which is an average speed of 81kmh. That is absurd and ridiculous when you consider the road is single track with passing places, see photo here.
Start: -5.303352136110836, 57.604555011028495 End: -5.50109239525144, 57.54281578965259
Google maps says 21 mins - https://maps.app.goo.gl/VGT9xsmcMUh3enDU9 TomTom says 20 mins - link here) HERE maps says 20 min - https://share.here.com/r/57.60451217280769,-5.303342237637392,A832/57.5427636927419,-5.501089652734952,A896?a=&m=d&z=17.46&t=normal
ORS at just under 12 mins is plainly wrong. This issue is replicated on all roads in Scotland where lanes = 1. There is a #maxspeed tag of 60mph which is technically the legal limit in the UK, but it would not be possible to drive that fast in real life. So, please can ORS find a way to modify realistic travel speed
Proposed solution
Please revise road speed calculations for single track highways, they are too fast and ORS is hopelessly inaccurate for this use case
Additional context
No response
Forum Topic Link
https://ask.openrouteservice.org/t/how-can-i-edit-openstreetmap-to-make-ors-drivetimes-more-accurate/5430