Prioritize roads

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Will it be possible to prioritize certain roads to avoid the smaller ones (the white ones) with worn surfaces, with many turns and slowdowns.
We are currently able to avoid the expressways but if we could add the possibility of avoiding the small roads, sometimes shorter but very unpleasant.
What do you think about it ?

What happened is that the planning is correct but sometimes, along the way, a message appears saying that the plan is no longer viable and it changes. Anyway, I think that's what happened. I don't think road traffic is to blame.
Thanks