Samenvatting
General requirements and test methods of road traffic control light signals. Definitions, colours of the signals, light intensity, pedestrian and cyclist and test methods are described.
General requirements and test methods of road traffic control light signals. Definitions, colours of the signals, light intensity, pedestrian and cyclist and test methods are described.
Rijswijk, NNi, 1971, 12 p.; Ontwerp NEN 3322, 1971
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