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Boyce, P.; Fotios, S.; Richards, M. |
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Road lighting and energy saving |
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Journal Article |
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Year |
2009 |
Publication |
Lighting Research and Technology |
Abbreviated Journal |
Lighting Research and Technology |
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Volume |
41 |
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3 |
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245-260 |
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Keywords |
public policy; roadway lighting; energy consumption |
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Abstract |
This paper examines how the lighting of roads in the UK might be changed so as to preserve the benefits while minimising energy consumption. It is divided into four sections, these being changes in technology, changes in patterns of use, changes in standards and contracts and changes in the basis of design. Useful changes in technology and patterns of use are available now, but their use will raise the question as to whether or not environmental considerations can override conventional financial constraints. Changes in standards and the basis of design are much more long term. Comparisons of road lighting standards used in different countries show significant differences that deserve examination. As for the basis of design, consideration of the importance of light to fatal and personal injury accidents of different types suggests that road lighting should be concentrated where pedestrians are common, not where speeds are highest. Ultimately, considering carefully what problem road lighting is intended to solve and whether or not road lighting is the best answer is the key to minimising the energy consumption of road lighting without diminishing road safety. |
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1477-1535 |
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IDA @ john @ |
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249 |
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Vitta, P.; Dabasinskas, L.; Tuzikas, A.; Petrulis, A.; Meskauskas, D.; Zukauskas, A. |
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Title |
Concept of Intelligent Solid-State Street Lighting Technology |
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Journal Article |
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Year |
2012 |
Publication |
Electronics and Electrical Engineering |
Abbreviated Journal |
ElAEE |
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18 |
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10 |
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Keywords |
outdoor lighting; street lighting; LED; LED lighting; energy consumption; algorithm design and analysis; electromagnetic interference |
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Abstract |
Street and road lighting consumes about ~2 % of global electric power and the trade-off between energy saving and social needs for traffic safety, crime prevention, aesthetic comfort, etc. has to be established. A wide range investigation of an intelligent solid-state street lighting system prototype equipped with LED-based luminaires, motion sensors and microcontrollers with power-line-communication interfaces was performed under real outdoor conditions. The two-level and two-zone street illumination method was implemented basing on psychophysical investigation. The decrease of efficiency under the dimming conditions and significant electromagnetic interference in the frequency range of tens and hundreds MHz were identified as limiting factors of conventional current regulating ICs and the necessity of further improvement was pointed out. |
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Institute of Applied Research, Vilnius University, Sauletekio av. 9-III, LT-10222 Vilnius, Lithuania |
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1392-1215 |
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329 |
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