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AIM 2/19/04
2−3−20 Airport Marking Aids and Signs
FIG 2−3−24
Runway Holding Position Sign
FIG 2−3−25
Holding Position Sign at Beginning of Takeoff Runway
2−3−8. Mandatory Instruction Signs
a. These signs have a red background with a white
inscription and are used to denote:
1. An entrance to a runway or critical area and;
2. Areas where an aircraft is prohibited from
entering.
b. Typical mandatory signs and applications
are:
1. Runway Holding Position Sign. This sign
is located at the holding position on taxiways that
intersect a runway or on runways that intersect other
runways. The inscription on the sign contains the
designation of the intersecting runway as shown in
FIG 2−3−24. The runway numbers on the sign are
arranged to correspond to the respective runway
threshold. For example, “15−33” indicates that the
threshold for Runway 15 is to the left and the
threshold for Runway 33 is to the right.
(a) On taxiways that intersect the beginning
of the takeoff runway, only the designation of the
takeoff runway may appear on the sign as shown in
FIG 2−3−25, while all other signs will have the
designation of both runway directions.
2/19/04 AIM
Airport Marking Aids and Signs 2−3−21
FIG 2−3−26
Holding Position Sign for a Taxiway that Intersects the Intersection of Two Runways
FIG 2−3−27
Holding Position Sign for a Runway Approach Area
(b) If the sign is located on a taxiway that
intersects the intersection of two runways, the
designations for both runways will be shown on the
sign along with arrows showing the approximate
alignment of each runway as shown in FIG 2−3−26.
In addition to showing the approximate runway
alignment, the arrow indicates the direction to the
threshold of the runway whose designation is
immediately next to the arrow.
(c) A runway holding position sign on a
taxiway will be installed adjacent to holding position
markings on the taxiway pavement. On runways,
holding position markings will be located only on the
runway pavement adjacent to the sign, if the runway
is normally used by air traffic control for “Land, Hold
Short” operations or as a taxiway. The holding
position markings are described in paragraph 2−3−5,
Holding Position Markings.
2. Runway Approach Area Holding Position
Sign. At some airports, it is necessary to hold an
aircraft on a taxiway located in the approach or
departure area for a runway so that the aircraft does
not interfere with operations on that runway. In these
situations, a sign with the designation of the approach
end of the runway followed by a “dash” (−) and letters
“APCH” will be located at the holding position on the
taxiway. Holding position markings in accordance
with paragraph 2−3−5, Holding Position Markings,
will be located on the taxiway pavement. An example
of this sign is shown in FIG 2−3−27. In this example,
the sign may protect the approach to Runway 15
and/or the departure for Runway 33.
AIM 2/19/04
2−3−22 Airport Marking Aids and Signs
FIG 2−3−28
Holding Position Sign for ILS Critical Area
FIG 2−3−29
Sign Prohibiting Aircraft Entry into an Area
3. ILS Critical Area Holding Position
Sign. At some airports, when the instrument landing
system is being used, it is necessary to hold an aircraft
on a taxiway at a location other than the holding
position described in paragraph 2−3−5, Holding
Position Markings. In these situations the holding
position sign for these operations will have the
inscription “ILS” and be located adjacent to the
holding position marking on the taxiway described in
paragraph 2−3−5. An example of this sign is shown
in FIG 2−3−28.
4. No Entry Sign. This sign, shown in
FIG 2−3−29, prohibits an aircraft from entering an
area. Typically, this sign would be located on a
taxiway intended to be used in only one direction or
at the intersection of vehicle roadways with runways,
taxiways or aprons where the roadway may be
mistaken as a taxiway or other aircraft movement
surface.
NOTE−
The holding position sign provides the pilot with a visual
cue as to the location of the holding position marking. The
operational significance of holding position markings are
described in the notes for paragraph 2−3−5, Holding
　
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