Lecture 2: AIRSIDEBy: Zuliana IsmailPART 2

Airside Signage

Signage

• Airside guidance signs provide direction and information to taxiing aircraft and any vehicles and assist in safe movement of aircraft.

Importance of the Signs

• To show mandatory instructions, information on a specific location or destination in the aerodrome.

• Characteristics of signs:• Clear• Rectangular• Different colors for each category• Illuminated (light up)

guidance signs

Direction signs: To indicate the intersection for aircraft turning.

Destination signs: To show direction to the specific destinations (cargo areas, military areas, international areas, etc.)

Mandatory signs:To indicate that aircraft ARE NOT ALLOWED to

enter (runway entrance & critical areas)

Location signs:To identify aircraft location.

Runway distance remaining signs: Landing distance remaining

guidance signs

1. Mandatory signs 2. Location signs

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3. Direction signs4. Destination signs

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5. Runway distance remaining signs

Sign Indicating 3,000 feet of Runway Remaining

guidance signs

Weather Information

Importance

• To prevent aircraft accidents.• To avoid flight delay or cancellations.• To make management of the air routes more

efficient• To improve the safety of the aircraft in the air.

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Airport Weather Stations

• Every 20 minutes• Observes temperature,

wind speed & direction, visibility, cloud coverage.

• Can’t observe sudden weather change.

• Automated Weather Observing Systems (AWOS)

• Automated Surface Observing Systems (ASOS)

• Every 1 hour• Observe weather conditions change rapidly.• Current weather, icing, lightning,, air

pressure.

Automated Sensor

Wind Indicators

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Wind Sock

• To Indicate wind direction & speed.• The stronger the wind, the

straighter the wind sock.• Move back and forth when the

wind is gusty (angin ribut)

• To Indicate wind direction only.• To suggest the pilot the runway

to be used

Wind Tee

Guiding pilot to determine the correct runway to use for landing and take off

Wind Indicators

Navigational Aid Systems

Navigational Aid Systems

• There are a number of navigational aids available in Airports.

• A Visual Approach Slope Indicator (VASI): helps pilots fly a perfect approach for landing once they have found the airport.

• VHF Omni directional range (VOR) to help pilots find the direction to the airport.

• Distance Measuring Equipment (DME) to determine the distance to the airport.

• Instrument Landing System(ILS) to find the runway and fly the correct approach, even if they cannot see the ground.

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A Visual Approach Slope Indicator (VASI):

Doppler VHF Omnidirectional Range Station (VOR)

Navigational Aids

Instrument Landing System(ILS)