UFC 3-535-01
17 November 2005
Figure 9-8. RDM Layout Configuration
15M-22.5M (50'-75')
NOTES:
RUNWAY
RDM ARE FAA TYPE L-858B, SIZE 4.
THLD/END
INSTALL RDM BOTH SIDES, EQUIDISTANT
FROM THE RUNWAY CENTERLINE. LOCATE
RDM IN STRAIGHT LINES PARALLEL TO THE
RUNWAY CENTERLINE, WITHIN THE
ALLOWABLE DISTANCE SHOWN, AS
MEASURED FROM FULL STRENGTH
PAVEMENT TO INSIDE EDGE OF RDM.
INSTALL AT 300M (1,000') INTERVALS, WITHIN
TOLERANCE OF + 15M (50') AT EACH
LOCATION.
DO NOT INSTALL WITHIN 300M (1,000') OF
RUNWAY ENDS (NO "ZERO" RDM).
EXAMPLE: 1950M (6,500') RUNWAY. IF
RUNWAY LENGTH IS NOT DIVISIBLE IN 300M
(1,000') INCREMENTS, ADD HALF THE EXCESS
DISTANCE AT EACH END AS SHOWN (EXCESS
DISTANCE IS 150M (500'), HENCE 75M (250') IS
ADDED AT EACH END).
FAA AC 150/5340-18 PROVIDES GUIDANCE ON
ALTERNATE CONFIGURATIONS (ONE SIDE
ONLY, DIFFERENT TREATMENT OF EXCESS
DISTANCE). THESE MAY ONLY BE USED
WITH APPROVAL FROM THE AIRFIELD
MANAGEMENT AND FLIGHT SAFETY
OFFICES.
OMIT RDM, SUCH AS AT AN INTERSECTION,
IF IT CAN NOT BE INSTALLED AT ITS STANDARD
LOCATION EVEN AFTER ADJUSTING FOR
ALLOWABLE LONGITUDINAL TOLERANCE.
RUNWAY
THLD/END
9-6.3.1
Message
Signs are double face, internally lighted, with retro-reflective message faces that meet
the color and reflectivity requirements of ASTM D 4956, Type I Sheeting. The spacing,
143
Previous Page
