25 May 2005
Use solid white lines, delineators, and chevron markings to indicate
obstructions between lanes traveling in the same direction.
Use solid lines to prevent changing lanes just before and just after the elevated
Provide symbols to indicate the appropriate turning movements.
Use black to outline the pavement marking where light-colored pavements do
not provide sufficient contrast with the markings.
Traffic Control Devices
As a minimum, consider "rumble strips" at the entrance to the ECF (beginning of the
approach zone) to alert vehicles entering the installation, and prior to the active barriers
in the outbound lanes to alert exiting vehicles. When using rumble strips, consider the
effects of the tire noise generated on nearby facilities or operations.
The use of speed bumps is prohibited. Speed humps as illustrated in Figure 6-6 may
be used. See Traffic Engineering and Highway Safety Bulletin: Traffic Calming and
Traffic Calming, State of the Practice for guidelines on the use of speed humps.
Figure 6-6 Example Speed Hump Profile
Use guardrails, or equivalent, to transition from shoulder to passive vehicle barriers.
Where final denial barriers or traffic arms are used, provide red and white reflectorized
striping on arms or surfaces. Warning signals should be provided prior to all active
vehicle barriers in each direction. The warning signals should have red and yellow
lights with the yellow light having the ability to flash. When the active vehicle barrier is
deployed to stop vehicle flow, a red stoplight will be used. At other times a yellow
flashing light will be used.
GUARD FACILITY DESIGN CRITERIA
This section outlines design guidelines for the various facilities associated with an ECF.
Specific design criteria for each facility type are first reviewed, and then common
requirements for all guard facilities are discussed.
The guard facilities at the ECF should provide a comfortable, safe working environment
for security personnel. Generally, a single gatehouse centered in the entry control