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by establishing grid points as shown in Figure A2-21 and using the intensity values measured at all grid points located within and
on the pimeter of the rectangle representing the main beam. The average value is the arithmetic average of the light intensities
measured at all considered grid points.
3. No deviations are acceptable in the main beam or in the innermost beam as applicable. when the lighting fixture is properly
aimed.
4. Horizontal angles are measured with respect to the vertical plane through the taxiway centre line except on curves where
they are measured with respect to the tangent to the curve.
5. Vertical angles are measured from the longitudinal slope of the taxiway surface.
6. The importance of adequate maintenance cannot be over-emphasized. The intensity, either average where applicable or as
specifd on the companding imandela curves. should never fall to a value less than 50 per cent of the value shown in the figures,
and it should bc the aim of airpod authorities to maintain a level of light output close to the specifid minimum average intensity.
7. The light unit shall be installed so that the main beam or the innmost beam, as applicable. is aligned within one-half degree
of the specified q u i ~ m e n t .
APP 2-22
4 - 7 4 5 4 - 3 - 2 - 1 0 1 2 3 4 5 6 7 8 - 7 4 4 4 3 - 2 - 1 0 1 2 3 4 5 6 7
Dqmr m ulmm Dalrcrrm -8mun
T-VASIS FLY-UP BOXES (NIGHT) T-VASlS FLVUP BOXES (onnY)
D q ~ e r i n 6.. \BOWOd ,r72WOd
DegeeS in eleValMl
ebatim
4.- 24WOd-• Whit
1.9" 1.9' 2--
1 1- - i J
L Red
(Not 2)
I I I I I I I I I I I I I I I I I
6 - 7 4 4 4 3 - 2 - 1 0 1 2 3 4 5 6 7 8 6 - 5 4 3 - 2 - 1 0 1 2 3 4 5 6
Degm m uimm Dalreesln airnu%
T-VASS BAR WXES (NIGH7 T-VASISBAR BOXES (DAY)
NalgM
6 - 7 4 4 4 - 3 2 - 1 0 1 2 3 4 5 6 7 6 4-54 4 - 2 1 0 1 2 3 4 5 6
bgreer inavimudl Degreesin z i m d
T-VASIS FLYOoWN BOXES (NIGHT) T.VASIS FLY- BOXES (DAV
Note 1 - These - sre formimum in^^ il Mie fight, NWe 3.-Asharp handm ha while lo no Ibht il ekvaban a essenbal
Note 2.- F ~ e r t m 9 m ~ ~ b a R n u l ~15I p9riose nfmi~mat
lor-VAseoperahM ForerrctakvrhMset.%g~, seeFqneS.f7.
operafmg mperatuni.
Frgure AZ-22. Lvght mtmnty dimbulmn of T-VASTS and AT-VASTS
APP 2-23 2511 1/04
Annex 14 -Aerodromes Volume I
Degrees in
elevation
-15-14 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 1415
Degees in azimuth
Note 1.- These curves are for minimum intensities h red light.
Note 2.- The intensity value in the white sector of the beam is no less than 2 and may be
as high as 6.5 times the orresponding intensity in the red sector.
Note 3.- The inten* values shown in hackets are for APAPI.
Figure A2-23. Light intensity distribution of PAP1 and NAP1
Annex I4 - A&mes
"='v ertical '1..
20 26 - Degrees
x horizontal
Notes:
1. Although the llghts flash In normal operation. the light intensity is specified as if the lights were fixed
for incandescent lamps.
2. The intensities specified are in yellow light.
Figure A2-24. Isocandela diagram for each light in low-intensity runway guard lights.
Configuration A
Annex 14 - Aemdromes Volume I
Degrees
vertical
Notes:
1. Although the lights lash in normal operation. the light intensity is specified as if the lights were fixed
for incandescent lamps.
2. The intensities speCified are in yellow light.
Figure A225. Imandela diagram for each light in high-intensity runway guard lights,
Configuration A
APP 2-26
APPENDIX 3. MANDATORY INSTRUCTION MARKINGS AND
INFORMATION MARKINGS
Note 1.- See Chapter 5, Sections 5.2.16 and 5.2.1 7 for
speczfications on the application, location and characteristics
of mandatory instruction markings and information markings.
Note 2.- This appendix details the form and proportions of
the letters, numbers and symbols of mandatory instruction
markings and information markings on a 20 cm grid.
ANNEX 14 - VOLUME I APP 3-1
Annex 14 - Aerodromes Volume I
APP 3-2
Appendix 3 Annex 14 -Aerodromes
APP 3-3
Annex I4 - Aerodromes Volume I
APP 3-4
Appendix 3 Annex 14 -Aerodromes
APP 3-5
Annex 14 -Aerodromes Volume I
APP 3-6
APPENDIX 4. REQUIREMENTS CONCERNING DESIGN OF
TAXIING GUIDANCE SIGNS
Note.- See Chapter 5, Section 5.4 for specifications on the b) Where operations are conducted in accordance with
application, location and characteristics of signs. 5.4.1.7 b) and c) and 5.4.1.8, average sign luminance
shall be at least:
1. Inscription heights shall conform to the following Red 10 cd/m2
tabulation. Yellow 50 cd/m2
White I 00 cd/m2
Note.- In runway visual range conditions less. than a value
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