Road wear isn't linear with weight. Estimates I've seen put a heavy 18-wheeler at the equivalent of more than 9,000 cars traveling over the same stretch of road

Road wear isn't linear with weight. Estimates I've seen put a heavy 18-wheeler at the equivalent of more than 9,000 cars traveling over the same stretch of road. Way, way more than 5x the damage (6mpg vs 30mpg).