The Cycling trip profile has the Steps allowed parameter. This should also be added for MTB.
I would add a slider here with 4 settings.
1. steps (stairs) not allowed
2. few steps (short steps) allowed
3. steps (stairs) downhill allowed
4. steps (stairs) uphill allowed
I would choose anything with less than 3 or 4 steps as short steps or few steps. If this is not specified in OSM, then less than 1.2 meters.
If a segment is actively selected or there is no other option, the router should still route this route and a warning Stairs is issued.
I would generally issue the Stairs warning even if Stairs allowed is selected.
I would add a slider here with 4 settings.
1. steps (stairs) not allowed
2. few steps (short steps) allowed
3. steps (stairs) downhill allowed
4. steps (stairs) uphill allowed
I would choose anything with less than 3 or 4 steps as short steps or few steps. If this is not specified in OSM, then less than 1.2 meters.
If a segment is actively selected or there is no other option, the router should still route this route and a warning Stairs is issued.
I would generally issue the Stairs warning even if Stairs allowed is selected.