Originally Posted by head_wind
1) Hmmm, I wonder how much my 18 pound bike and I tear up the roads compared to an 80,000 pound semi?? I'd be happy to pay proportionally.
Road wear/damage is proportional to the square of the weight of the vehicle. A two inch thick concrete MUP will last until erosion or plant roots do it in. A 16 inch thick concrete freeway will last about 18 - 24 years, and will usually fail due to fatigue.