UFC 4-022-01
25 May 2005
each side for the curb and gutter. If moderate-to-heavy bicycle traffic is expected, lane
widths of 15 ft (4.57 m) to 17 ft (5.18 m) are recommended.
Consider narrowing the lanes at the gatehouse/guard facilities to 10 ft (3.0 m) wide to
slow motorists down and place them close to the ID checker. If this is done, at least
one inbound lane, usually the outer lane, at multi-lane gates should be 12 ft (3.6 m)
wide to accommodate larger, wider vehicles. Also consider other potential impacts of
narrow lanes, such as:
Narrow lanes are highly restrictive to large vehicles, including some
emergency vehicles;
Narrow lanes can impact traffic flow; when the lane width is less than 12 ft
(3.6 m) motorists drive very cautiously and also tend to increase the spacing
between vehicles (Traffic and Highway Engineering); and
Consider snow removal requirements and address required width between ID
check islands for snow removal equipment.
6-6.4
Inspection Areas
Inspection and search areas should have sufficient area to safely move vehicles from
the lanes of traffic to conduct thorough vehicle inspections. Consider the space
required for maneuvering robotic inspection and disposal equipment.
For lanes or pull-off areas used for random inspection purposes, the minimum width is
18 ft (5.5 m) to facilitate the safe inspection of vehicles. The length of a pull-off area or
inspection area should be a minimum of 40 ft (12.2 m) or the length required to support
the largest expected vehicle at the ECF, which ever is larger.
AF
Provide the following inspection areas: For standard vehicles, provide 15 x 25 ft
(4.5 x 7.2 m) inspection bays that can be enclosed, if necessary, to protect inspection
equipment in the event of bad weather. For commercial vehicles, size inspection areas
to be a minimum of 18 x 80 ft (5.5 x 24.4 m) x 17 ft 6 in (5.4 m) high that can be
enclosed to protect inspection equipment in the event of bad weather. Pull-off areas
should accommodate one to three parallel-parked vehicles, and be located both sides of
the entry lanes.
6-6.5
Curbs and Gutters/Shoulders
Shoulders are desirable to accommodate disabled or stopped vehicles. However, curbs
and gutters are preferable in areas where lane control is desired and to improve safety.
Therefore, consider shoulders only for use in the approach and response zones. Curbs
and gutters are required in the access control zone and around all channelization
islands.
6-6.5.1 Curbs and Gutters
Curbs are primarily intended to contain vehicles within the roadway and to provide an
elevated platform for personnel who must stand close to the moving vehicles. A curb
height of 6 in (152mm) is recommended in the access control zone. Curbs where ID
checks are performed can be 9 in (229mm) high to increase the safety for entry
6-17
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