Something that I've found particularly vexing with Navigator is that it constantly takes the slip road when I'm on the highway. I have to place waypoints all over the highway just to make sure it stays on the highway. Maybe this is because Navigator is attempting to plot the shortest distance between two points. Something that I know Google does with Google Maps is that it gives the option of a number of different routes between two points that the user can choose. Those routes, if there are highways, keep the user on the highway as long as it can until it reaches the destination. If the user decides to take a side road, it will reroute once the user has reach a particular distance from the highway and give the user a completely new route to take.
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