The Revealing Power of Street Lighting Installations and its Calculation
This paper extends the work of Waldram and others on the revealing power of street lighting installations. It is shown that values of revealing power, approximating closely to the true values, can be calculated from the mean pedestrian illumination Em and the road surface luminance B. Curves are giv...
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| Veröffentlicht in: | Lighting research & technology (London, England : 2001) England : 2001), 1951-05, Vol.16 (5_IEStrans), p.120-128 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | This paper extends the work of Waldram and others on the revealing power of street lighting installations. It is shown that values of revealing power, approximating closely to the true values, can be calculated from the mean pedestrian illumination Em and the road surface luminance B. Curves are given showing this approximate revealing power as a function of the two quantities B and B/Em. The curves may be used to find the revealing power to any desired accuracy for any type of installation by a simple calculation of averages. The broad effects of changes in the lighting installation may also be understood with the aid of these curves. |
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| ISSN: | 1477-1535 0096-5952 1477-0938 |
| DOI: | 10.1177/147715355101600502 |