Cross country route:
During 2008-09 snow seasons Islamabad-Muree-Nathiagalli-kalabagh-Abbotabad-Islamabad
Normally it is 5~6 hour drive, but when blocked with snow, I think we must spare 1 extra day, if anybody stucked.
I agree we must prepared for the events and snow chains comes 1st in our check list. It requires some other necessary equipments like clothing for sub-zero temperature and tents sub-zero sleeping bags, extra food and fuel. Snow chains, toe chains, shovel, etc. etc.