`surface=gravel` & bends cost

[toyotaekefar]

🐞 routing report

Routing engine

• [x] OsmAnd's in-app offline routing
• [ ] Any online routing provider (YOURS, openrouteservice, OSRM, etc.)

Routing Profile

Car

Start and end points

https://osmand.net/map?start=49.083107%2C33.424256&end=49.087102%2C33.431590&mode=car#16/49.0843/33.4297

Actual and expected routes

Actual: Europe Street (Європейска вулиця) > https://www.openstreetmap.org/way/300715840 > https://www.openstreetmap.org/way/305086830 > Heroes of Mariupol Lane (Героїв Маріуполя провулок) > highway=service to apartment building

At https://www.openstreetmap.org/way/300715840 surface=gravel from 13 Jan 2019 https://www.openstreetmap.org/changeset/66272542

Expected: Europe Street (Європейска вулиця) > Freedom Avenue (Свободи проспект) > Heroes of Mariupol Lane (Героїв Маріуполя провулок) > highway=service to apartment building

Is this a regression?

Don't know ## 🌍 Your Environment **OsmAnd Version:**

4.2.7

**Device and Android/iOS version:** All **Maps used (online or offline):**

• [x] Offline maps offered within the OsmAnd app for download.
• [x] Online (tile / raster) maps https://osmand.net/map

Anything else relevant?

After the detection of the routing problem, smoothness=bad + lanes=1 at https://www.openstreetmap.org/way/300715840, lanes=3 + surface=asphalt at https://www.openstreetmap.org/way/846193383, https://www.openstreetmap.org/way/175941297, lanes=2 + surface=asphalt at https://www.openstreetmap.org/way/177963088 were added

[xmd5a2]

Route through trunk: routing_time=383,5 Route through gravel: routing_time=299,8 Routing time via trunk is so high because there are 2 traffic signals. It is debatable that route through gravel is less preferable.

[xmd5a2]

Added penalty to gravel. Now it doesn't build route through it.

[xmd5a2]

Route with "Avoid unpaved" option:

[vshcherb]

This is also gravel - https://www.openstreetmap.org/way/678718969. I think it's pretty bad... https://wiki.openstreetmap.org/wiki/Tag:surface%3Dgravel If it's like this - https://wiki.openstreetmap.org/wiki/Tag:surface%3Dgravel. Probably we can lower speed and also introduce penalty_transition for them?

[toyotaekefar]

Routing time via trunk is so high because there are 2 traffic signals. It is debatable that route through gravel is less preferable.

The duplicate of the traffic light was removed after your message. However, I believe that even 2 traffic lights would be preferable than surface=gravel & such bends at the highways/roads

[xmd5a2]

@vshcherb OsmAnd doesn't build a route through gravel after last update. Also I think that introducing penalty transition for gravel is a bad idea because it adds penalty for transitions from any type of road but there are roads much worse than gravel. @toyotaekefar There is "Avoid unpaved roads" routing option.