UFC 3-535-01
17 November 2005
CHAPTER 9: STANDARDS FOR AIRFIELD SIGNS AND MARKERS
9-1
GENERAL
9-1.1
Purpose
Signs and markers provide important guidance and control for the safe and efficient
surface movement of aircraft on an airfield. Proper signing provides information on
location, direction, destination, mandatory holding positions, important boundaries, and
other information. Additionally, runway distance markers provide to the pilot the
remaining distance on a runway for landing and take-off operations.
9-1.2
Intent of Standard
The intent of this standard is to provide signing consistent with current FAA and ICAO
requirements and standards, including: FAA AC 150/5340-18, Standards for Airport
Sign Systems, including all current Sign and Marking Supplements (SAMS); FAA AC
150/5345-44, Specification for Runway and Taxiway Signs; and ICAO Annex 14,
Chapter 5, Visual Aids for Navigation. The signing criteria in this chapter and in the
references above should be applied at all airfields to the extent that they do not conflict
with any special local requirements.
9-1.3
Components of a Sign System
The following types of signs, discussed more below, are basic components of a sign
system for an airfield:
9-1.3.1
Mandatory Signs
Red sign with white legend, indicating mandatory holding positions for runways, ILS
critical area boundaries, and certain other mandatory instructions to pilots. (FAA Type L-
858R)
9-1.3.2
Taxiway Guidance and Information Signs
Yellow sign with black legend, indicating direction, destination, runway exit, clear of a
boundary, or other information. (FAA Type L-858Y)
9-1.3.3
Location Signs
Yellow legend and border on black background, indicating the surface on which the
aircraft is operating. While primarily indicating taxiway location, these also may be used
to indicate runway location at potentially confusing areas. (FAA Type L-858L)
9-1.3.4
Sign Arrays
Signs are often established as a sign array with several messages. For example, a
location sign may be grouped with a mandatory holding position sign or with one or
several direction sign messages as a sign array. However, not all types of signs may be
grouped together.
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