Zones of an Entry Control Facility
1. Approach Zone
Starts from the installation boundary
• Reducing speed of incoming vehicles
• Performing sorting of traffic by vehicle type
• Providing adequate stacking distance
• Providing first opportunity to identify potential threats
Use of simple/reverse curves to reduce and control speed of traffic should be considered. The length of the approach zone should be maximixed to provide optimal stacking for traffic queue. If facility is congested and space is limited for additional lanes, consider use of reversible lanes at periods of peak demand.
Traffic sorting by vehicle type should be also considered.
2. Access Control Zone
Main controlling element of ECF. Provides access control and inspection capability.
• Infrastructure to support manual and automated I.D. and inspection
• Canopy to protect against inclement weather, facilitate operations
• Minimum of two rejection points, one prior and one after the central I.D.
• Facilitates inspections out of traffic lanes
• Gatehouse and additional sentry booths as required
• Typical to provide ballistic protection for guard facilities
3. Response Zone
Extends from end of access control zone to the point of “final denial”. Main function is to provide time for security personnel to react to a threat
and close ECF if necessary. Design with a sufficient length to provide
adequate reaction time for security personnel. “Final Denial” (i.e. barrier) will be provided at the end of the ECF to provide
the capability to stop threat vehicles.
Response Zone - Barriers
Passive barrier continues until end of ECF
Active vehicle barrier typically used to provide “final denial”
Consider maximizing active barrier capacity based on available funds
Overwatch / Auxiliary Position
Additional position for security personnel beyond access control zone.
Location should afford personnel ability to assess threat, initiate alarms,
activate final denial, and respond to the attack as authorized.
Site selected based on reaction time and line of fire considerations. May be elevated for improved safety and surveillance.
Extends from the active and passive barriers surrounding the ECF:
• Since a threat vehicle may be contained in this area and explode, you
must consider the effects of such an explosion on nearby personnel,
buildings, or assets.
• An acceptable safety zone would be determined by the expected weight of
explosive charge, the facility or asset to be protected, and the required
level of protection.
• Should also consider operational hazards associated with potential
If an adequate safety zone cannot be achieved, other alternatives
should be considered or a decision made to accept additional risk.
To receive your Physical Vulnerability Assessment, please submit your payment of $99.00
B E T T E R: Please submit your payment of $999.00 for a complete Physical Vulnerability Assessment or Design covering a single location.