"let's try to minimize how much time we waste on left turns" A tangent, but I would really like Google Maps, or some viable substitute to permit "only right tu

"let's try to minimize how much time we waste on left turns" A tangent, but I would really like Google Maps, or some viable substitute to permit "only right turns" as an option. There are routes where every time it wants me to make a left onto a busy highway from a side street with no traffic light. Knowing where the lights are would be one solution, but "only right turns" wouldn't depend on data.