On your Triptek, the interstate exits have numbers in them (diamond shaped). These exit numbers are also mileage numbers. For example, if you are at exit 80 and the rest area in just past a diamond with a 30 in it, you have about 50 miles to drive to the rest area. Rest areas are generally a triangle with a circle around it.
Staying south of a large city would means don't stay in a motel before you get to the city but drive around or thru the city and stay in a motel at that point. This really works well with large cities that have morning rush hours but if you stay in a smaller town it does not matter.
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