clearway taxiway guidance signs - Airports International

clearway taxiwayguidance signst h e c l e a r a p p r o a c h t o a i r p o r t s

introductionClearway Taxiway Guidance Signs are manufactured by atg airports ltd at our Warringtonheadquarters where, by following a principle of continuous development, the signs haveprogressed into market leading products that are operational at sites across the globe.This well proven design has been further developed by atg airports ltd to improve reliability and maintainability whilst helping to reduceoverall life cycle energy costs.Clearway Taxiway Guidance Signs are supplied with LED technology as its primary light source (offering our customers thetechnologies and the many benefits they provide). The life expectancy of a Clearway LED Sign typically exceeds 75,000 hours andcoupled with the multi-redundant LED configuration, will maintain compliant sign performance in the event of individual LED failure.Clearway Signs can also be supplied with either fluorescent tube technologies with optional long life 50,000 hour modules, coldcathode tube or tungsten halogen lamps.specificationcabinetExtruded aluminium profile – up to 6.2m long anodised andpowder coated in RAL 1007 aviation yellow.weather proofingTested to IP 65 Rating.front panelShatter proof 4mm polycarbonate.cabinet fixingsNon oxidising stainless steel clips and fixings.power supplies6.6A AGL series circuit, 230V AC or 24V DC supply.visibilityAll clearway signs are designed for operations in weatherconditions with an RVR less than 800m. t +44 (0) 1942 68 5555 e airports@atgairports.com w www.atgairports.com

sign constructionClearway Taxiway Guidance Signs are built using the latest aluminium extrusion technology,which enables a lightweight but rigid construction.The main body of the sign cabinet is manufactured from corrosive resistant aluminium extrusions. The extrusions are interlocked witheach other creating a sealed unit. This unit then has cross members and side panels secured, giving the compartment its strength.Prior to the assembly of the main cubical, all the metal work is anodised and powder coated in aviation yellow providing a hard wearing,durable gloss finish.The fascia framework is also manufactured from corrosive resistant aluminium extrusions, which is black in colour. It is mounted andsecured onto the front of the sign by the use of a quick release stainless steel clasps. A neoprene rubber gasket is fixed to the frontfascias making a weatherproof seal of the complete unit to a rating of IP65. The sign fascia is hinge mounted to the main casing toprovide quick and easy access for maintenance and lamp change. If required the whole sign fascia can be lifted free from the casing toprovide full, unrestricted access to the main casing.features• Compliance with luminance and colour temperaturerequirements of ICAO and CAP 168 for day or night time use• Economical to operate: Low electrical power demand long lifelamps and minimum maintenance• Modular construction: Commonality of mechanical andelectrical equipment throughout the range of sizes• Easy to remove sign fascia• Multi-lamp design maintains sign visibility in case of partiallamp failure• 3500K light source provides improved colour contrast andlegibility• Typically exceeds 75,000 hour life span when utilising LEDtechnology• 18,36,58W/10,000/50,000 hour fluorescent tubes• Also available with 18W/m Cold Cathode Tubes or 45WTungsten Halogen Tubes• Operating temperature -25°C to 55°C• Simple to install• Lamp failure bypass device for halogen lamps• Standard FAA style• Clearway signs can be supplied to give a constant brilliancylight output or dimmable t +44 (0) 1942 68 5555 e airports@atgairports.com w www.atgairports.com

photometric performanceEach sign regardless of type is tested for the average light output, according to the procedures stipulated in ICAO annex 14 and CAP 168.All signs will exceed the light output requirements for a RVR of ‹800m.Signs are also checked for the correct colour output in a simulated night condition. The measurements taken at various test points arechecked against the CIE diagram for conformity.Colour Min RVR ‹800m Colour X YYellow 150 Candela Yellow 0.411 0.400Red 30 Candela Red 0.688 0.306White 300 Candela White 0.411 0.400quality assuranceatg clearway signs are engineered to meet all the relevant standards.Units are tested and results recorded by atg skilled technicians using precision instrumentation to ensure compliance. Third partyindependent test houses have also successfully carried out verification and certification of the clearway sign performance.Due to the extended maximum length of the clearway sign up to 6.2m, the homogenous nature of the fascia is kept clear of any noncompliant complications such as sign or fascia joints creating unwanted delineators in the sign front. It also enables the clearway brandto boast superior levels of ingress protection against the harshest of elements over the entire length of the sign. t +44 (0) 1942 68 5555 e airports@atgairports.com w www.atgairports.com

optionsisolatorsAn optional isolation switch will break all circuit supplies to enablelamp changing whilst the main airfield series circuit is in use.retro-reflective signsIlluminated by an external light source either an aircraft taxi lightor by lamps mounted on the ground.bird wireBird Wire deterrent facility can be fitted to the top of the unit.sign tethersStainless steel sign tethers are also available.sign fascia and dimensionsThe legend fascia comprises of four layers. The main layer is opaque in colour and manufactured from UV stabilised 4mm polycarbonatepreventing it from shattering or cracking when hit by flying objects, i.e. stones picked up in a jet blast wash. The remaining layersmake up the colours and characters of the sign front, all covered in an anti-vandal, non reflective translucent fascia. The sizing of signcharacters and the spacing is directed by the appropriate International standards, therefore, the length of individual signs is directlyrelated to the display legend. In order to accommodate these standards, signs are manufactured in 14 different lengths.mounting systemsstandard mountingsThe trifoot mounting (pictured above) is atg’s preferred method of mounting for Clearway Guidance signs. The trifoot can be securedto a concrete or black top surface with the frangible support poles inserted into a frangible coupling which is screwed directly into thetrifoot mounting. Other ground mounting options are available. Finally, the sign is suspended from the poles using ‘U’ clamps. The ‘U’clamps mounting method is used for both standard mounting and terrafix mounting.terrafix mountingThis method is quick and easy for signs mounted direct onto grass/soil or for temporary installations. The terrafix ‘spike’ is driven intothe ground replacing the ground mounting plate. The sign is finally erected as before this time the vertical frangible poles are locateddirectly into the terrafix spikes. This method eliminates the need for delethalisation.atg airports clearway taxiway guidance signs

atg airports ltdLowton Business ParkNewton RoadLowton St. Mary’sWarrington Wa3 2apukt +44 (0) 1942 68 5555f +44 (0) 1942 68 5518e products@atgairports.comw www.atgairports.com