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d m not exceed 150 m;
C) the marking l ~ a bye o d dw hth e obstacle is light&
by h i g h - i n h e &stack lights by day; and
d) the lighting rnay be mWlllttedw here the dshcle is a
lighthouse and an aemmtical st& indicates the
lighthouse ligkt to be suficient.
6.1.5 A fixed object that ex- above an obsmle
pwtection surface shall be and if the nmmy is used
6-1.3 A fixed obstacle that extends above an approach or at night. lighd.
transitional surface within 3 0 m of the inner edge of the
qrcacb surfh &all be marked and. if the nmwy is used nt No&- See 5.3. Sfor infommtion on t k absracle protection
night, lighted, except that s*.
ANNEX 14 - VCILUMB 1
Annex 14 - Acivihmcs Volume I
Figure 6-1. Basic marking patterns
6.1.6 Vehicles and other mobile objects, excluding
aircraft. on the movement area of an aerodrome are obstacles
and shall be marked and, if the vehicles and aerodrome are
used at night or in conditions of low visibility, lighted except Geneml
that airwaft servicing equipment and vehicles uqed only on
aprons may be exempt. 6.2.1 All fixed objects to be marked shall, whenever
practicable, be coloumd, but if this is not practicable. markers
6.1.7 Elevated aeronautical ground lights within the or flags shall be displayed on or above them. except that
movement area shall be marked so as to be conspicuous by objects that are suPficiently conspicuous by their shape. size or
day. Obstacle lights shall not be installed on eleva~ed ground colour & not be vtherwise marked
Lights or signs in the movement area.
6.2.2 All mobile objects to be marked shall be c o l o d or
6.1.8 All obstacles within the distance specified in display flags.
Table 3- 1, column I I or 12, from the centre line of a taxiway.
an apmn taxiway or aircraft stand taxilane shall be marked
and, if the taxiway, apron taxiway or aircraft stand taxilane is
used at night. lighted. Uee of coIours
6.19 Recommendation.- Obstacles in uccorclance with
4.3.2 should be marked and lighted. e.rcept that the manking
may be omitted u'hen the obstacle is lighted by high-inten.~ie
dstacle lights by day.
6.1.10 Recommendation- 0verl1eat.i tviwsP cables. etc.,
crossing a rive^ valley or highway should be marked and their
supporting towem murked and lighted if an aemnauticul study
indicates that the wins or cables muld constitute a hazard to
airrmff, except that the marking of the suppurtit~gt m r sn ury
be omitted when they am lighted By high-intensiQ Obstacle
lights by dax
6.1 .I 1 Recommendation- Whet# it has been determined
thut an overhead wim, cable, etc.. nee& to be marked
but it is not practicable to install markers on the wire. cable,
etc.. the~r high-intensity obstacle lights, vpe B, should be
provided on their supporting towers.
6.2.3 Recommendation- An &&ct should lw coloumd
to show a chequered pattern i f it has e.~sentially unbtwken
surJzces and its projection on any verfical plane equuls or
exceeds AS m in both dimensions. The pattern shorthi consist
of rectangles of nor kss than 1.5 m arid not nwrp t h t ~3 m on
a side, the corners being of the daricer mlour. The colnurs qf
the patttm should contrast each with the other and with the
background against which they will be seen. Omnge and white
or alternatively red and white should be used. except where
mch colours merge with the background (See Figum 6-1.)
6.2.4 Recommendation7 An object shotdd be coloured
to show ultemating contmsting bands p
a) it has ersentially unbroken surfnes and Pllrs one
dhensim. ho-tal or vertical, greater than 1.5 nr. and
the other dimensiun. hotizontal or vertical, less tha#t
4.5 m; or
Annex I4 - Amodmrnes
b] it is of skeletal type with either a r.erticul ur a hrrri:vntal
dimension greater than 1.5 m.
The bands should be perpendicrtlar to the lm~esdti ntension
and have a width approximately 1/7 of the longest dimension
or 30 m, whiclte~vr is Iess. The colours qf the bands should
contrast with the background against which they will be seen.
Omnge and white should be used, except where such colours
are not conspicuous when viewed against the backgronnd. The
band.$ on the e-~~tremitioefs the object sltould be of the darker
calaur. (See Figures 6-1 and 6-2.)
Nde.- Tuble 6-1 shows a formula for derermining band
wiaVhs and fur having an OLM number of bands, thru
permitting both the t qa~nd bttom lmnds to be of the darker
robur.
6.2.5 Recommendation-- An object should be rdnured
in a single cwnspicuuus colour if its projection on any vertical
plane has both dimensions less than 1.5 m. Orange or red
 
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