The speed limit on the straight desolate paved road that goes past our place is 80 km/hr. The people who use the road drive whatever speed they please and for the most part it works fine ….. until you...
While there may be no evidence that differential speed causes accidents, there is certainly empirical evidence that the greater the differential speed, the greater the potential for having accidents and the greater the severity of the accidents.
Hence there is a reason why there is a minimum speed limit on freeways and why you can't drive your moped on them.