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Profilo: 004 - Ligh Pollution by luminaries in roadway lighting

Contro Luce

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DarkSky in Europe

13777-CieloBuio

Osservatorio di libero pensiero illuminotecnico, di scienza e di cultura

Consult English Section:
"Dark Sky in Europe"
Download the guidelines paper "European Effort to prevent Light Pollution"
based on the Lombardy Law number 17 of year 2000

November 2000 - Minor Planet Circulars (13777) Cielobuio = 1998 UV6 Discovered 1998 Oct. 20 by M. Cavagna and A. Testa at Sormano.
Motivazione: "...Cielobuio ha giocato un ruolo fondamentale di supporto all''approvazione della legge regionale della Lombardia contro l''inquinamento luminoso, una delle più avanzate del mondo..." CieloBuio's Asteroid Kids

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20 Nov 2008 - 04:54

cielobuio.org

We present the results of a comparison of light pollution produced by some light installations for roadway lighting as obtained with the software Roadpollution. Luminaires with an direct upward flux factor apparently as small as 0.2% and 2.2% produce increases of light pollution even of the order of 20% and 200% respectively. Reflection of downward light wasted outside of the road adds approximately another 50% – 100%, depending on the reflectivity of the surrounding surfaces and the fraction of wasted light flux, and should be minimized as much as possible.

Autore: Pierantonio Cinzano
Versione: Dimensione: 109,38 Kb

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