Road Rally Signs
When running a road rally you have to be very observant. You need to read every road sign you pass if you are looking for a particular turn.
It is amazing how many signs we pass by during our normal driving that we take no notice of. When running road rallies, you have to notice them all.
For example, when given a speed change at a particular sign, you have to find the first one, not the others along the way.
Since the advent of touring road rallies where speed changes must be made at a specific spot and not a vague point like the apex of a turn, speed changes are often referenced at the first speed limit sign after a turn. Some times it is easy to miss that first sign if you are paying attention to turning and then looking for the next instruction.