Attachment 14
A14.2.20.1.2. Warmup or Holding Pad. The warmup or holding pad is a paved area adjacent
to the taxiway and the runway end. It provides a means of bypassing aircraft being held at the
runway end for various reasons. For detailed design and siting criteria, see Chapter 6.
A14.2.20.1.3. Arm/Disarm Pad. Arm/disarm pads are used for arming aircraft just before
takeoff and for disarming weapons retained or not expended upon the aircraft's return. For
detailed siting criteria and other information, see Chapter 6. When a personnel shelter is
required, it is considered a part of the arm/disarm complex and must be sited to provide
minimum wingtip clearance for the adjacent pavement type (taxiway or taxilane) and according
to explosives quantity-distance criteria as discussed in Attachment 10 and AFMAN 91-201.
A14.2.20.1.4. Helicopter Autorotation Lanes (also called "Slide Areas" or Skid Pads"). Such
lanes may be sited on or between active runways without a waiver. Ensure they are sited to
prevent conflicts in operations (safety clearance zones must not overlap operational areas that
will be used simultaneously).
A14.2.20.1.5. Vehicle Control Signs and Traffic Lights (Frangible and Non-Frangible). These
signs and lights provide drivers with guidance on traffic routes, service yard areas, and similar
places. They provide warning information at runway and taxiway crossings and other
hazardous points. Vehicle control signs and traffic lights may be located on the airfield
movement area (including apron) without a waiver to criteria. However, a traffic engineering
study should be accomplished and coordinated with Civil Engineers, Airfield Management, and
Safety before traffic control devices are selected and installed. (Refer to Military Traffic
Management Command (MTMC) Pamphlet 55-14, Traffic Engineering for Better Signs and
Markings, for information on obtaining assistance with traffic engineering studies.) In siting
vehicle controls signs and traffic lights, make sure that they do not obstruct taxiing or towed
aircraft. Incorporate frangibility into existing designs to the maximum extent practicable by
saw-cutting wood posts on opposing sides to a depth of approximately one-third the cross
section of the post, or chain drilling metal posts to provide an intended break point near the
base. Modifications of this type must be made at a point no more than 76.2 mm (3-inches)
above grade. Incorporate more precise frangible designs as these devices are replaced. See
paragraph A14.2.2.2 for further guidance.
A14.2.20.1.6. Runway Distance Markers (Frangible). These markers are required for runways
used by jet aircraft and are recommended for runways used by propeller type aircraft. For
detailed siting and design guidance, see AFI 32-1044 and AFJMAN 32-1076.
A14.2.20.1.7. Aircraft Security System (Frangible and Non Frangible) . If a security system or
fence is approved by the Air Force for airfield security, such as the microwave fence sensor or
similar system as required by AFI 31-101, Installation Security Program, approval of the siting
by the MAJCOM operation and safety offices will allow siting the system without waiver.. No
fence shall be allowed to penetrate the Primary or Approach-Departure Clearance Surfaces
without waiver.
A14.2.20.1.7.1. Flightline security sensor supports originally developed for the Tactical
Area Security System (TAAS) were tested and qualified as acceptable frangible mounting
supports for various types of security sensors. These supports may be used over the entire
airfield if sited to comply with the following guidelines.
A14.2.20.1.7.1.1. Taxiways -- conformance with criteria for taxiway signs must be met
(distance and height).
A14-9
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