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Description / Abstract:
General
The recommendations in this Technical Report are structured with
the intention of making them easily adaptable to the needs of
individual countries. This document is a framework, which could
serve for developing national codes of practice and standards.
Since Publication CIE 115-1995, Recommendations for the
Lighting of Roads for Motor and Pedestrian Traffic, was
issued, the performance of luminaires and lamps has improved and
the realization of efficient adaptive lighting systems is
technically possible at reasonable cost. This technical report
considers these matters in detail and gives information about the
use of control systems able to satisfy the requirements of adaptive
lighting. The visibility level concept and Small Target Visibility
(STV) algorithm are not considered here because they are under
evaluation in CIE TC 4-36 "Visibility Design for Roadway
Lighting".
The report is based on experience gained worldwide in the
application of the luminance concept to the lighting of traffic
routes. The document takes into account the needs of all road
users.
In conformity with the most recent CIE practice, this report is
based on maintained lighting levels (CIE 154:2003) and lighting
quality. This implies that performance must not fall below the
prescribed limits, which are minimum values, for the life of the
installation.