That's a weird area to to want to de-socialise costs! If trucking costs go up to cover wear, urban end-users probably won't notice much cost difference (bit of change to last-mile infrastructure at most) while remote communities would be bled dry then cutoff (where the "last-mile" location is impractical for tracks). And probably the same fate for small and medium agricultural concerns who won't necessarily be able to privately link up to the network.