26 Feb 2025, 21:40

There is no set formula for how many route points to use and how many would be via points. Some people put a shaping point on every road they want to travel on, I don’t believe that this is necessary. I also don’t believe that a route point is always required every 5 km.
A route that travels through a large town or city will require more route points if you want to use certain roads because there are more options that your navigation device could take.
Another argument would be to place a route point at both sides of the city and let your device choose the best route, your device will probably take traffic and the time of day into account when plotting your route and the route could change each time you used it.
The fewer options (roads) there are for your navigation device to use the fewer route points that are required.
As I said, there’s no formula but you do get a feel for it with experience.