25 May 2005
CCTV Under Vehicle Search Systems (UVSS)
Several companies have developed fixed and portable CCTV systems for facilitating
under vehicle search. This technology is meant to enhance or replace existing
inspection techniques such as manual inspection using mirrors or accessing the
underside of the vehicle from an inspection pit. Contact the manufacturers of these
systems to ensure proper installation and operation of this equipment. The
effectiveness of these systems has not been fully assessed and results of initial testing
vary. Therefore, the use of CCTV UVSS should be in accordance with Service
If a CCTV UVSS is utilized, evaluate the following considerations and guidelines.
Consider maintenance requirements. Is the equipment self-cleaning?
If installed below grade, is the enclosure waterproof? Is the vault and
equipment designed to support large vehicle loading?
Install the system far enough in advance of the access control point so that the
largest vehicle can pass over the equipment without entering the installation.
Drainage should be established such that water drains away from the
When providing drains from the equipment enclosure, provide backflow
prevention valves to prevent water from entering the vault. Ensure any water
that may be captured in the vault will not drain through control conduit to the
The electrical circuit serving the equipment should be a ground fault interrupt
Monitoring area should be free of glare.
Vehicle speed should be kept below 15 mph (24.1 km/h) to ensure adequate
Where exposed to freezing temperatures, the equipment installation should
Cargo and Vehicle Inspection Systems
There are many types of automated inspection equipment for large vehicle or cargo
inspection. Some of the types available, which provide an image of the contents of a
vehicle or container, include X-ray and Gamma Ray inspection systems. There are
other systems available, such as neutron or vapor/particle analysis, which aim to detect
the common chemical elements associated with explosives or other contraband.
Currently the most commonly used equipment is imaging systems. Generally, this
equipment can be categorized into mobile and fixed installations. Many installations are
considering procuring mobile systems that afford the possibility of varying the location of
the equipment amongst various entry control facilities. Installations that plan centralized
truck inspection facilities should consider a fixed installation, which potentially has an
increased throughput and a reduced space requirement. Due to the wide-ranging
requirements for the different manufactured systems, it is not possible to provide
detailed guidance that will support all types of this equipment. However, this section will
attempt to identify the important infrastructure considerations associated with both