Quantcast Traffic Control

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Capacity (vehicles/lane/hour)
Identification Type
Reference 1 (1986)*
Reference 2 (2001)*
No Direct Checks
Vehicle Identification Only
ID and Vehicle Identification
Complete Vehicle Inspection
Traffic Arm w/ Card Reader
*Note: Tandem Processing increases capacity by 25% (2)
Table 4-1 Estimated Vehicle Throughput (Ref. 1and 2)
4.4 Traffic Control
Signs, markings, and signals are necessary to perform traffic control and satisfy regulatory
requirements and will be provided in accordance with OPNAV 5530.14C Appendix VII and
the Manual on Uniform Traffic Control Devices (MUTCD). Due to the likely increase in use of
automation and the subsequent increase in channelization of traffic, guide signs will become
increasingly important to indicate lane use and direct traffic into the appropriate lanes.
Regulatory signs will provide information on traffic laws and regulations. Warning signs,
markings, object markings, and delineators will indicate hazards to users. These signs will
reduce conflict between approaching vehicles and improve the flow of traffic through the ECF.
A limited use of signs in all zones and especially in the access control zone is strongly
encouraged. Signs in the access control zone may obstruct the view of the guards. Replacing
signs with pavement markings will provide the desired effect. Overhead guide signs should be
used when the gate has three or more lanes, with varying functional use in each lane.
Variable Message Signs (VMS) provide the ability for security personnel to inform motorists of
security level, roadway status, or other general information (2). Vehicles approaching the ECF
should be informed of their approach to a restricted area. This may require coordination of
signage on approaching roads with state or local officials. Additional information on the
standard size and shapes of markings and signs can be found in the latest edition of the
Federal Highway Administration's "Standard Highway Signs."
It is also desirable to manage the speed of traffic in the entry control facility for the safety of
the accessing vehicles and security personnel (see Section concerning the risks
presented by active vehicle barriers). The speed limit in the entry control facility shall be
clearly posted. In addition the use of geometric roadway layout features or other traffic
control devices such as "rumble strips" or warning strips, caution signs, or traffic or flashing
lights should be used in the response zone to manage the speed of traffic and increase
awareness of the active vehicle barrier system.
4.4.1 Speed Limit
The speed limit must be 25 mph or below throughout the ECF to protect security personnel and
to minimize the potential for accidental impact with vehicle barricades. This speed limit also
applies to the outbound lanes as they approach the vehicle barricades. Any deployed active
vehicle barrier system has the potential to be lethal. Limitations on the maximum speed serve
to reduce the potential for injuries or fatalities.


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