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mark aircraft run-up positions at secondary aerodromes.
Yellow
Figure 18 – Triangle Marking
3.10.12 Lead-out Line. The parking position lead-out line comprises a
broken yellow line commencing at the forward end of the stripe
along the alignment line.
3.10.13 Taxi Guide-line Designation Marking. Where an apron has
more than one parking position, each individual parking position
lead-in line is provided with appropriate designation markings
where it diverges from the common taxi-guide-line. There are
three types of designations: viz, parking position number, aircraft
type and aircraft weight.
3.10.14 Position Designation. The parking position designation
indicates the aircraft parking position to which the taxi guide-line,
or lead-in line leads. Where a lead-in line leads to several
positions, the designation indicates the first and last numbers of
the parking positions served by each line. The designations
comprise 2M long yellow characters.
3.10.15 Type Limit Designations. Aircraft type limit designation
characters are painted yellow and 2M long. Where an apron
contains parking position(s) which can only accommodate aircraft
smaller than the largest aircraft using the apron, appropriate
aircraft type limitations are provided at the lead-in line for each
restricted position. Where a parking position is restricted to use by
a particular aircraft type, a designation marking such as “F27
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ONLY” or “NO B727” is used. If the parking position is restricted to
helicopters then “H ONLY” is provided on the guide-line.
3.10.16 Weight Limit Designation. Aircraft weight limit designations are
provided to identify the maximum weight limitation at a parking
position. Where the apron contains parking position(s) which can
only accommodate aircraft of a lighter weight than the heaviest
weight allowed elsewhere on the apron then appropriate yellow
weight limitations are painted on the relevant lead-in lines.
3.10.17 Parking Limit Lines. These lines are provided to assist in
ensuring that no part of a parked aircraft infringes taxiways or
vehicle access roads. The markings consist of two parallel lines
0.1M wide, separated by a red line 0.1M wide. Suitable yellow
labels are painted along the line at not more than 50M intervals.
The continuity of the line may be broken where normal access is
required and aircraft may taxi across the line where necessary.
3.10.18 Other Apron Markings. Other apron markings which may be
seen at major airports are:
– tug push-back lines – broken white
– tow disconnect markers – white
– lease lines – green (not used when coincident with parking
limit lines)
– equipment limit lines – red, edged in black and suitably
labelled
– apron road markings – red, edged in black. These
markings are used to define roadways which may be used
by uncontrolled vehicles transiting aprons.
– passenger path markings – white on black.
3.11 Obstacle Marking
3.11.1 Inconspicuous obstacles penetrating the obstacle limitation
surface of an aerodrome, or which are present on the movement
area, are obstacle-marked unless they are shielded by a
conspicuous or marked obstacle. Obstacle painting is either in
chequered patterns or alternate bands of orange and white or red
and white except where such colours would merge with the
background. High intensity lighting may be used for tall structures.
3.11.2 In areas away from aerodromes, constructed obstacles between
90m and 150M in height are normally marked only if considered a
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significant hazard to aircraft. Constructed obstacles above 150M
in height are normally marked, unless considered not to be a
hazard.
3.12 Aerodrome Information Signs
3.12.1 Aerodrome information signs have black lettering on a yellow
background or yellow lettering on a black background. They
provide location and direction information at an aerodrome with a
complex taxiway layout. The following information signs may be
seen:
a. Taxiway Location Sign.A location sign indicates the
designation of a taxiway. This sign is often installed in
conjunction with a taxi-holding position sign or a direction sign.
Yellow on Black
b. Destination Sign. A destination sign provides directional
advice to pilots to proceed to various facilities on the
aerodrome. Where abbreviations are used, they have the
following meaning:
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