UFC 4-010-01
8 October 2003
controlled perimeter, assume that the larger explosive weights upon which the
controlled perimeter standoff distances are based (explosive weight I from Table D-1)
can access parking and roadways near buildings. Therefore, where there is no
controlled perimeter, use standoff distances from parking and roadways according to
the distances and the explosive weight associated with controlled perimeters in Table
D-1.
D-1.1.2.1
Container Structures and Pre-engineered Buildings. For these
structures, apply the guidance in Appendix B.
D-1.1.2.2
Fabric Covered and other Expeditionary or Temporary Structures.
Measure the standoff distance from the closest point on the structure exterior to the
closest edge of parking areas and roadways. The minimum standoff for all structures
regardless of hardening or analysis is 10 meters (33 feet).
D-1.1.2.3
Existing Fabric Covered and other Expeditionary or Temporary
Structures. Moving existing parking areas and roadways may be difficult to achieve
and structural retrofits to existing structures may be prohibitively expensive or
technically impossible; therefore, the following operational options are provided for
existing inhabited structures where the standoff distances in Table D-1 are impractical
to achieve.
D-1.1.2.3.1 Parking Areas. Establish access control to portions of parking areas to
ensure unauthorized vehicles are not allowed closer than the required standoff distance.
For primary gathering structures and billeting, if access control is provided to prevent
unauthorized parking within the required standoff distance, permit controlled parking as
close as 10 meters (33 feet) without hardening or analysis.
D-1.1.2.3.2 Roadways. Eliminate parking within the required standoff distances along
roads adjacent to existing structures covered by these standards.
D-1.1.3
Trash Containers. Measure the standoff distance from the nearest point
of the trash container or trash container enclosure to the closest point on the structure
exterior. Where the standoff distance is not available, hardening of trash enclosures to
mitigate the direct blast effects and secondary fragment effects of the explosive on the
structure is acceptable, if the applicable level of protection can be proven by analysis. If
trash enclosures are secured to preclude introduction of objects into the enclosures by
unauthorized personnel, locate them closer to the structure as long as they do not
violate the unobstructed space provisions of Standard 3 below. Openings in screening
materials and gaps between the ground and screens or walls making up an enclosure
will not be greater than 150 mm (6 inches).
D-1.1.3.1
Container Structures and Pre-engineered Buildings. For these
structures, apply the guidance in Appendix B.
D-1.1.3.2
Fabric Covered and other Expeditionary or Temporary Structures.
Provide the standoff distance from Table D-1 for the applicable structure category.
D-1.2
Standard 2. Structure Separation. Structure separation requirements
are established to minimize the possibility that an attack on one structure causes
D-2
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