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to land runway “xx,” hold short of runway “yy”” from
air traffic control must either exit runway “xx,” or
stop at the holding position prior to runway “yy.”
3. Taxiways Located in Runway Approach
Areas. These markings are used at some airports
where it is necessary to hold an aircraft on a taxiway
located in the approach or departure area of a runway
so that the aircraft does not interfere with the
operations on that runway. This marking is collocated
with the runway approach area holding position sign.
(See subparagraph 2−3−8b2, Runway Approach
Area Holding Position Sign, and FIG 2−3−15.)
b. Holding Position Markings for Instrument
Landing System (ILS). Holding position markings
for ILS/MLS critical areas consist of two yellow solid
lines spaced two feet apart connected by pairs of solid
lines spaced ten feet apart extending across the width
of the taxiway as shown. (See FIG 2−3−16.) A sign
with an inscription in white on a red background is
installed adjacent to these hold position markings.
When the ILS critical area is being protected, the pilot
should stop so no part of the aircraft extends beyond
the holding position marking. When approaching the
holding position marking, a pilot should not cross the
marking without ATC clearance. ILS critical area is
not clear until all parts of the aircraft have crossed the
applicable holding position marking.
REFERENCE−
AIM, Instrument Landing System (ILS), Paragraph 1−1−9.
c. Holding Position Markings for Taxiway/
Taxiway Intersections. Holding position markings
for taxiway/taxiway intersections consist of a single
dashed line extending across the width of the taxiway
as shown. (See FIG 2−3−17.) They are installed on
taxiways where air traffic control normally holds
aircraft short of a taxiway intersection. When
instructed by ATC “hold short of (taxiway)” the pilot
should stop so no part of the aircraft extends beyond
the holding position marking. When the marking is
not present the pilot should stop the aircraft at a point
which provides adequate clearance from an aircraft
on the intersecting taxiway.
d. Surface Painted Holding Position
Signs. Surface painted holding position signs have a
red background with a white inscription and
supplement the signs located at the holding position.
This type of marking is normally used where the
width of the holding position on the taxiway is greater
than 200 feet(60m). It is located to the left side of the
taxiway centerline on the holding side and prior to the
holding position marking. (See FIG 2−3−11.)
2/19/04 AIM
Airport Marking Aids and Signs 2−3−13
FIG 2−3−12
Geographic Position Markings
FIG 2−3−13
Runway Holding Position Markings on Taxiway
RUNWAY
TAXIWAY
EXAMPLE OF HOLDING POSITION MARKINGS
EXTENDED ACROSS HOLDING BAY
HOLDING
BAY
15
TAXIWAY/RUNWAY
HOLDING POSITION
MARKINGS
AIM 2/19/04
2−3−14 Airport Marking Aids and Signs
FIG 2−3−14
Runway Holding Position Markings on Runways
2/19/04 AIM
Airport Marking Aids and Signs 2−3−15
FIG 2−3−15
Taxiways Located in Runway Approach Area
AIM 2/19/04
2−3−16 Airport Marking Aids and Signs
FIG 2−3−16
Holding Position Markings: ILS Critical Area
15
DETAIL 2
DETAIL 1
RUNWAY HOLDING
POSITION MARKINGS,
YELLOW, SEE
DETAIL 1
ILS HOLDING
POSITION MARKINGS,
YELLOW, SEE
DETAIL 2
ILS CRITICAL
AREA
2−3−6. Other Markings
a. Vehicle Roadway Markings. The vehicle
roadway markings are used when necessary to define
a pathway for vehicle operations on or crossing areas
that are also intended for aircraft. These markings
consist of a white solid line to delineate each edge of
the roadway and a dashed line to separate lanes within
the edges of the roadway. In lieu of the solid lines,
zipper markings may be used to delineate the edges
of the vehicle roadway. (See FIG 2−3−18.) Details of
the zipper markings are shown in FIG 2−3−19.
b. VOR Receiver Checkpoint Markings. The
VOR receiver checkpoint marking allows the pilot to
check aircraft instruments with navigational aid
signals. It consists of a painted circle with an arrow in
the middle; the arrow is aligned in the direction of the
checkpoint azimuth. This marking, and an associated
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