Quote from Guido on January 12, 2021, 09:18

Quote from Ciro on January 12, 2021, 06:08

Hi,
not sure if it's connected to this problem but I also think there is an improvement to be made in the routing algorithm.

Let's say I am on a relatively "main" road, in the route creation the apps want me to get out of it then back in after 1 or 2 km and I end up passing inside somebody's house :).

I've tried to change the various heuristics like Fast, Effective and so on and it seems it like to do that quite a lot. This is happening both in Italy and in Greece. It's kind of frustrating since the 2/3 km detours are kind of meaningless.

Not sure if there is even a thing, but the algorithm should not leave a road for then coming back to it (unless there is a via point) within some X (10?) km.

Not sure if it makes sense.

I've made a route on the fly and captured a couple of these things. Usually, I go manually to all these detours and put a via on the right side. in light color is the "would like to be" route.

This is a little bit related to the problem on this forum topic, but not entirely. These 'detours' are due to bad map data. Specifically, road categories being wrong or missing. In essence the map provider categories the main road the same as the detour road (or both are not categorised) (or worse, the detour road as a higher speed category road) resulting in these wrong detours. This is one of the most important reasons why I'm switching to another map provider in Scenic 3. The testing I've done so far have given excellent results so I'm hoping this problem will be almost completely gone with Scenic 3.

Quote from Ciro on January 12, 2021, 10:46

I see what you mean. Let's hope for the best and we keep fixing the detours and enjoy the app while riding 🙂

Thanks!!