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AIM

10/12/17

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

sign, is located on the airport apron or taxiway at a

point selected for easy access by aircraft but where

other airport traffic is not to be unduly obstructed.

(See FIG 2−3−20.)

NOTE−

The associated sign contains the VOR station identification

letter and course selected (published) for the check, the

words “VOR check course,” and DME data (when

applicable). The color of the letters and numerals are black

on a yellow background.
EXAMPLE−

DCA 176−356

VOR check course

DME XXX