[Marcello]

The problem with the road disruptions methods which have been listed here is that:
A) they are often substantially time consuming;
B) require a certain amount of advance planning to be effective;
C) they are often quick to repair.
For some you will have the additional problem of denying road use to your own side earlier than desiderable. Were they contemplated or are these just ideas that are being tossed around?
Again I have been taken aback by how little disruptive and easily fixed the damage caused by runways bombing was in many cases.