AFAIK pot holes are from cars/trucks/deathmobiles going over a dint or crack and making it worse. As it gets larger so does the amount of damage to and from the vehicles.
Although I do want a way to get airborne from a car. 600kph+pothole=disintegrating car.[/quote]
I fully support the addition of Fun in all its forms, and this is one of them. It’d be pretty cool to see your car fly apart as well.
Anyway, as I understand it potholes form due to two reasons: water getting into cracks in the road and freezing, causing it to expand and forcing the cracks wider, and, as stated above, simple traffic and lack of maintenance causing any cracks or small depressions in the road to be exacerbated due to the weight of vehicles passing over them. Over time, both of these effects slowly create more tiny cracks in the pavement, causing disintegration of the road surface. This greater area of the defect is then repeatedly filled with freezing water and/or run over repeatedly, creating more cracks, causing more of the road material to disintegrate, etc. and creates a pothole.
Putting all that aside, potholes should be no more common than normal 1 week after the apocalypse and probably equally rare or more so than the random-ass landmines in the middle of the road. However, building a massive death machine probably won’t help matters.