UFC 4-010-01
8 October 2003
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 B-1. Measure the standoff distance from
the closest edge of parking areas and roadways to the closest point on the building
exterior or inhabited portion of the building. In addition, the following apply:
B-1.1.2.1
New Inhabited Buildings. The minimum standoff for all new buildings
regardless of hardening or analysis is 10 meters (33 feet) for both parking areas and
roadways.
B-1.1.2.2
Existing Inhabited Buildings. Where possible, move parking and
roadways away from existing inhabited buildings in accordance with the standoff
distances and explosive weights in Table B-1. It is recognized, however, that moving
existing parking areas and roadways or applying structural retrofits may be impractical;
therefore, the following operational options are provided for existing inhabited buildings:
B-1.1.2.2.1 Controlled Parking Areas. Controlled parking associated with existing
inhabited buildings may be allowed to be as close as 10 meters (33 feet) without
hardening or analysis if access control to the parking area is established at the
applicable conventional construction standoff distance for parking in Table B-1. In
cases where the applicable level of protection can be provided (based on hardening or
analysis) with a standoff distance between the conventional construction standoff
distance and the effective standoff distance, parking may be allowed as close as 10
meters (33 feet) if parking is controlled at that lesser applicable standoff distance
subject to the following:
B-1.1.2.2.1.1 Parking Within a Controlled Perimeter. The applicable conventional
construction or effective standoff distance at which access will be controlled will be
based on the standoff distances for parking and roadways within a controlled perimeter
in Table B-1 for the applicable building category.
B-1.1.2.2.1.2 Parking Without a Controlled Perimeter. The applicable conventional
construction or effective standoff distance at which access will be controlled will be
based on the standoff distances for parking and roadways without a controlled
perimeter in Table B-1 for the applicable building category.
B-1.1.2.2.1.3 Alternate Situations. Controlled parking may be allowed to be closer to
existing inhabited buildings where conditions necessitate it and where it can be shown
through analysis that the required level of protection can be provided at a lesser
standoff distance or if it can be provided through building hardening or other mitigating
measures or retrofits.
B-1.1.2.2.2 Parking on Existing Roadways. Parking along roadways is subject to
the same standoff considerations as other parking. Ensure that there is no parking on
roadways within the required (conventional construction or effective in accordance with
Table B-1) standoff distances along existing roads adjacent to existing buildings
covered by these standards.
B-4
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