Issues with Use of Airfield LED Light Fixtures PDF Download
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Author: John D. Bullough
Publisher: Transportation Research Board
ISBN: 0309223695
Category : Airports
Languages : en
Pages : 44
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Book Description
"TRB's Airport Cooperative Research Program (ACRP) Synthesis 35: Issues With Use of Airfield LED Light Fixtures documents the performance of light-emitting diode (LED) airfield lighting systems."--publisher's description.
Author: John D. Bullough
Publisher: Transportation Research Board
ISBN: 0309223695
Category : Airports
Languages : en
Pages : 44
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Book Description
"TRB's Airport Cooperative Research Program (ACRP) Synthesis 35: Issues With Use of Airfield LED Light Fixtures documents the performance of light-emitting diode (LED) airfield lighting systems."--publisher's description.
Author: John E. Burns
Publisher:
ISBN: 9780309374941
Category : LED lighting
Languages : en
Pages : 78
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Book Description
This report provides guidance for operating and maintaining light-emitting diode (LED) airfield ground lighting systems, including taxi guidance signs, elevated light fixtures, and in-pavement light fixtures. The research team prepared its guidance based on a literature review, an extensive survey of nearly 50 airports, and case studies of 12 airports. The guidebook begins with an overview of regulatory requirements as they relate to LED airfield lighting and a summary of the survey and case studies. The report then provides guidance on maintenance, including acceptance testing and warranty, fixture obsolescence and spare part recommendations, preventive maintenance and refurbishment/repair, maintenance practices during pavement repair, and environmental factors (e.g., vibration and moisture). The guidebook also covers operational considerations, including circuit configuration, heaters, monitoring, photometric and chromaticity analysis, and return-on-investment. The guidebook is supplemented by sample system requirements and maintenance schedules. The guidebook will be of particular interest to airport operations and maintenance (O&M) practitioners seeking to maximize the potential O&M benefits that LED lighting offers as they integrate and/or replace older airfield lighting with this new technology.
Author: John D. Bullough
Publisher:
ISBN: 9780309223690
Category : Airports
Languages : en
Pages : 35
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Book Description
"TRB's Airport Cooperative Research Program (ACRP) Synthesis 35: Issues With Use of Airfield LED Light Fixtures documents the performance of light-emitting diode (LED) airfield lighting systems."--publisher's description.
Author: John E. Burns
Publisher:
ISBN: 9781523108923
Category : LED lighting
Languages : en
Pages : 78
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Book Description
This report provides guidance for operating and maintaining light-emitting diode (LED) airfield ground lighting systems, including taxi guidance signs, elevated light fixtures, and in-pavement light fixtures. The research team prepared its guidance based on a literature review, an extensive survey of nearly 50 airports, and case studies of 12 airports. The guidebook begins with an overview of regulatory requirements as they relate to LED airfield lighting and a summary of the survey and case studies. The report then provides guidance on maintenance, including acceptance testing and warranty, fixture obsolescence and spare part recommendations, preventive maintenance and refurbishment/repair, maintenance practices during pavement repair, and environmental factors (e.g., vibration and moisture). The guidebook also covers operational considerations, including circuit configuration, heaters, monitoring, photometric and chromaticity analysis, and return-on-investment. The guidebook is supplemented by sample system requirements and maintenance schedules. The guidebook will be of particular interest to airport operations and maintenance (O & M) practitioners seeking to maximize the potential O & M benefits that LED lighting offers as they integrate and/or replace older airfield lighting with this new technology.
Author: United States. Naval Facilities Engineering Command
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 46
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 24
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Book Description
Author: Sarah Jo Peterson
Publisher: National Academies Press
ISBN: 0309493749
Category : Transportation
Languages : en
Pages : 535
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Book Description
In 1920, state highway engineers, federal officials, and experts from academia were among a small group convened by the National Academy of Sciences to confront the problems of the highway. The public was entrusting them with billions of dollars for good roads, and World War I had proved the feasibility of moving freight long distances by truck. But even new highways were crumbling. They turned to research for solutions. The founders of the Transportation Research Board (TRB) and the generations that followed took on problems such as safety, social equity, and environmental issues. They embraced "total transportation," adapting their highway research model to urban transportation and then applying it to rail, marine, and aviation modes. Today TRB convenes thousands of researchers, practitioners, and administrators every year to advise the government, solve practical problems, foster innovation, and stimulate new research. In The Transportation Research Board, 1920â€"2020: Everyone Interested Is Invited, Sarah Jo Peterson tells the story of how people and institutions created and have continued to shape TRB. In a compelling narrative accompanied by more than 150 images exploring the history of transportation and research, she argues that TRB can be best understood as an infrastructureâ€"one that people purposely designed and devotedly maintained. Despite TRB's institutional complexity, its unique mission, the vast collection of acronyms in its orbit, and the significant changes to the organization in its first 100 years, Dr. Peterson provides a view from 30,000 feet, deftly describing the social, political, and economic context in which transportation (and TRB) functioned. At the same time, she attends to details of the key events, individuals, and human motivations that shaped TRB's evolution. The author's skills as a historian, her experience in the transportation field, and her manifest ability to tell a good story have produced a book that transportation professionals of all stripesâ€"and, for that matter, anyone interested in the history of transportation in the United Statesâ€"should find both engaging and informative and an essential addition to their library.
Author: Xianming Shi
Publisher: Transportation Research Board
ISBN: 0309097991
Category : Deicing chemicals
Languages : en
Pages : 67
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Book Description
"TRB's Airport Cooperative Research Program (ACRP) Synthesis 6: Impact of Airport Pavement Deicing Products on Aircraft and Airfield Infrastructure explores how airports chemically treat their airport pavements to mitigate snow and ice, and the chemicals used. The report also examines the effects of pavement deicing products on aircraft and airfield infrastructure, and highlights knowledge gaps in the subject"--Publisher's description.
Author:
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 108
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Book Description
Author: Hilary Stevens
Publisher:
ISBN:
Category : Airports
Languages : en
Pages : 106
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Book Description
"Pilots must understand and be aware of the purpose of each airport sign, light and marking, for there are numerous. The Federal Aviation Administration (FAA) is planning on replacing the current incandescent lighting with far more economical LED airport lighting. In preparation for this change, two experiments were conducted for this thesis. Experiment 1 attempted to determine what pilots know about the meaning of the signs, markings and lights on the taxiways and runways through a questionnaire that was developed with the FAA. Experiment 2 evaluated pilot perception of LED lighting compared to current incandescent elevated runway guard lights. The meaning of airfield lights is not often stressed in pilot training and many pilots are unsure as to the intended purpose of specific lighting. Experiment 1 attempted to evaluate the uncertainty of these caution lights. In experiment 1, a knowledge survey about runway lighting and markings was created. The survey was developed by a flight instructor and approved by the Federal Aviation Administration. The surveys were given to about 150 pilots with varying flight ratings and experience levels. Experiment 1 results determined that there is a need for more intensive or remedial training on some airport signals. Results also showed that some runway signals need to have greater cue salience. Experiment 2 was designed to replace the existing elevated runway guard lights at a local airport from incandescent lights to light emitting diodes. Permission to cross onto the runways from a taxiway at airports must be given by the air traffic (ground) controller. The demarcation between taxiway and runway is indicated by the elevated runway guard l8ight (ERGL), which signals to the taxiing pilot to hold short at the border of the runway until permission to cross the intersection is obtained. Incandescent lights are currently installed in the EGRLs. Experiment 2 of this thesis was designed to evaluate pilot's perceptions of the elevated runway guard lights if they were to be changed to light emitting diodes (LED). Experiment 2 was conducted to determine if pilots distinguish a difference in brightness, and noticeability as well as the level of distraction of both the incandescent and LED EGRLs. Results of the EGRL survey indicated that the EGRL which, was LED, was perceived to be brighter, less distracting and more noticeable than the current incandescent lights. Additionally, pilots preferred the LED EGRL over the incandescent. These results argue that LED bulbs will certainly be as good as current incandescent bulbs in alerting pilots and in many cases may be better than current bulbs. Besides the potential to increase the salience of the taxiway lighting, LEDs are dramatically less expensive to use and maintain. For example, their lifespan is ten times the life of an incandescent light. Replacing the considerable number of lights on an airport with LED fixtures will bring a significant savings to operations. These studies were part of a sponsored project by the FAA (Airport Safety Technology Research and Development Sub-Team, AJP-6311) in preparation for introducing LED technology to airport lighting."--Leaf 3.
