All of this is an essential product of the Airport Operator SMS.Ĭontroller ability to detect manoeuvring area conflicts may be reduced in poor visibility conditions, as the controllers may be unable to visually confirm whether their clearances are properly complied with. In low visibility conditions, extreme vigilance is required and special procedures, including restrictions on normal access, may be invoked. #Visibility drivers#The safe operation of airside vehicles depends upon drivers being adequately trained and thoroughly familiar with the aerodrome layout in all visibility conditions and on their compliance with procedures, signs, signals and ATC instructions. This risk can only be managed adequately by the application of procedures that provide the pilot with clear, unambiguous guidance on routing and holding points or ground traffic patterns. The risk of inadvertent runway incursion by taxiing aircraft is greatest at aerodromes with complex layouts and multiple runway access points. If a RTO is carried out, pilots must maintain awareness of runway length remaining using whatever external visual cues are available relevant runway lighting, signage or markings may be available.Īs visibility deteriorates, the potential for runway incursions by aircraft, vehicles or personnel increases. #Visibility verification#Low visibility take off also requires careful attention to correct runway alignment before the take-off is commenced an ILS LLZ signal can be used for verification if available. Making the necessary transition to visual reference during the final stages of an approach to land in poor visibility is critical and certain requirements must be met to reduce the risk of a Runway Excursion. The aircraft is likely to be badly damaged or destroyed if it collides, at high speed, with any sizeable object. An aeroplane on the ground is at its most vulnerable during the landing and the take-off phases of flight when the options for avoiding action, if an obstruction is encountered, may be very limited. On aerodromes where the ground marking and lighting is adequate, ground traffic at reasonable flow rates can often be sustained safely in reduced visibility. It should be noted that in the latter case, surface visibility may be relatively good but the TWR visual control room may be in cloud/ fog. Low visibility procedures exist to support Low Visibility Operations at Aerodromes when either surface visibility is sufficiently low to prejudice safe ground movement without additional procedural controls or the prevailing cloud base is sufficiently low to preclude pilots obtaining the required visual reference to continue to landing at the equivalent of an ILS Cat 1 DH/DA. Note that ICAO requires LVP for all departures below 550m RVR, not just LVTO. Low visibility take-off (LVTO) means a take-off with a Runway Visual Range (RVR) lower than 400 m but not less than 75 m. Send us feedback.Low visibility procedures (LVP) means procedures applied at an aerodrome for the purpose of ensuring safe operations during lower than standard category I, other than standard category II, category II and III approaches and low visibility take-offs. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'visibility.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. 2022 Lighting specifically designed for a stop has a far greater benefit to visibility and safety. Samuel Axon And Scharon Harding, Ars Technica, 7 Sep. 2022 Apple claims this will bring a greater range of brighter colors, improved visibility of details, like textures, and better low-light performance. 2022 Roads in the city's Old Town were closed, staffed by officials in high- visibility jackets.Īlexander Smith, NBC News, 11 Sep. 2022 Yet heartbreaking images of the homeless living in deplorable conditions on the streets shock visitors who have flooded back to New York City this year - especially in high- visibility marquee locations in and around Times Square.įox News, 14 Sep. 2022 Still, despite not causing an outright panic or near-political crisis, the Great Smog still had a devastating impact, including poor visibility, widespread illness and deaths. 2022 Each person in line was given a wristband with a number, and hundreds of marshals in yellow high- visibility jackets patrolled the length of the queue. 2022 But there's high visibility, high pressure and high expectations from the public whose taxes pay for the monarchy.Īmy Haneline, USA TODAY, 16 Sep. Recent Examples on the Web There is a formidable police presence around London, with security stewards in high- visibility jackets at every turn.
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