Cost and energy-efficient (LED, induction and plasma) roadway lighting.
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2013-11-01
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Abstract:There is an increasing interest in using new lighting technologies such as light emitting diode (LED), Induction, and Plasma light sources ; in roadway lighting. The most commonly claimed benefits of the new lighting systems include increased reliability, improved efficiency, ; and reduced maintenance costs. While Indiana Department of Transportation (INDOT) is also getting a lot of interest from vendors ; pushing the new light sources for roadway lighting applications, none of these new lighting technologies has been used in the state ; highway systems by INDOT. Before adopting the new lighting technologies, INDOT would like to determine if the new lighting ; technologies meet required light output and if they are cost effective. Moreover, it is necessary for INDOT to establish standardized ; guidelines for evaluating the new lighting systems prior to the formal adoption. ; This study first conducted literature reviews on the new lighting technologies. Surveys were also conducted to identify the perceptions ; of state highway agencies and local cities towards the new lighting technologies including LED, Induction, and Plasma, and their ; experiences in use of these new lighting technologies. Various luminaires, including HPS, LED, Plasma, and Induction luminaires from ; different manufacturers were installed and evaluated for both conventional and high mast lightings at a test site over a period of 12 ; months. Illuminance measurements were made to determine the light levels and illuminance uniformities produced by those LED, ; Plasma and Induction luminaires with the existing lighting infrastructures. Comparisons were also made between the light performances ; produced by different luminaires. Electric currents were measured to determine the energy consumptions by different luminaires. Life ; cycle cost analysis was also conducted to determine if the new lighting sources are cost‐effective compared to the corresponding HPS ; lighting sources and assess the possible return or payback periods for the LED, Plasma, and Induction luminaires evaluated in this study. ; Illuminance measurements were also made for two urban street lightings to map the light performances of LED and Plasma luminaires ; with different lighting layouts. ; Main findings and recommendations were made to assist INDOT Traffic Engineering in upgrading the lighting policies and developing ; technical specifications for adopting the new lighting technologies.
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Main Document Checksum:urn:sha256:32459da1a10d6e7bc6bbce091dd0b580a08ac453eb3388c2a4e86f0d4afb6404