Roadbike routing avoids road

openrouteservice directions
1

I found a piece of road that openrouteservice with the road bike profile avoids at ridicoulus costs:

I don’t see anything in the tags that hints at anything: in contrast to the neighbouring piece of road, maxspeed and oneway:no isn’t specified

(I can only post two links, so I have to link this as text) :

https://www.openstreetmap.org/way/664495979#map=21/47.2943957/8.8105980&layers=T
https://www.openstreetmap.org/way/27812890#map=19/47.293648/8.808806&layers=T

also satimages show that there’s no reason to avoid this:

https://map.geo.admin.ch/#/map?lang=de&center=2703571.94,1239128.28&z=11.904&topic=ech&layers=ch.swisstopo.zeitreihen@year=1864,f;ch.bfs.gebaeude_wohnungs_register,f;ch.bav.haltestellen-oev,f;ch.swisstopo.swisstlm3d-wanderwege,f;ch.vbs.schiessanzeigen,f;ch.astra.wanderland-sperrungen_umleitungen,f&bgLayer=ch.swisstopo.swissimage

with other routing profiles then road bike routing works as expected.

2

Hi adori,

I suspect that this is because there is a sac_scale=hiking attached to these ways, so based on that, they would not be suitable for a road bike to travel along.

3

The same is true for the other piece of road though.

I suspect there’s a hiking route that takes this road for a short stretch which is why in OSM it’s tagged this way.

If this tag would indicate a path which is only walkable, it would be very hard for other bikes too, not only for road bikes, and likely completely impassable for heavier vehicles then motorbikes.
Every other routing option just does the obvious