d. Temporary signs are used to mark alternate or bypass routes. Place these well in advance to
allow vehicles to avoid the defile where possible. Signs may also be used to reduce the need for more
personnel.
e. Make sure access to the defile is controlled. Keep large numbers of vehicles and personnel
from entering the defile at the same time.
f. Set up procedures for clearing the road if and when breakdowns occur. You may need to
coordinate wrecker support. If it is not available, use field methods.
MP1007
6-4
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