New considerations about light pollution in rural and protected areas based on a global perspective savings-pollution-safety: Impact on real installations
| Autor: | Peña-García, Antonio, Sędziwy, Adam |
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| Rok vydání: | 2017 |
| Předmět: |
Civil and Environmental Engineering
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| DOI: | 10.31224/osf.io/yd4pc |
| Popis: | The broad implementation of LED light sources in public lighting has become a revolution in the last years. Their low power consumption and good performance make LED an optimal solution in most of outdoor applications. In addition, the white light emitted by the vast majority of the LED used in public lighting and their good color rendering allow pedestrians and drivers enjoy of more comfortable cities at night, especially commercial zones and city centre. However, the regulations on light pollution, that in some countries have been developed in parallel to the introduction of LED lighting, present strong constrains to white light due to Rayleigh scattering. These regulations request filtering of blue wavelengths in some rural areas, and thus they limit the projects to high pressure sodium sources or amber LEDs, whose prices are higher and performances lower than for white LEDs. In this work, the pros and contras of white and amber LED lighting in rural areas are analyzed and compared through real simulations and considerations based on efficiency and light pollution. Important conclusions for installations in rural and protected areas are presented. |
| Databáze: | OpenAIRE |
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