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Correct Street Lighting

Nature volume 141, pages 10921093 (18 June 1938) | Download Citation



THE General Electric Co. Ltd. has installed in its street-lighting showrooms at Magnet House, Kingsway, London, W.C.2, a model demonstrating many of the problems that arise in street lighting and how they have been effectively solved by the methods recommended in the final report on street lighting issued by the Ministry of Transport. The model measures 5 ft. long by 2 ft. wide, the lighting columns and roads being to a scale of 1 in 380. Running the whole length of the modei is a main arterial road lighted by columns which in practice would provide a mounting height to light source of 25 ft. for a main road (Group A). The thoroughfare is lighted by a staggered arrangement of units not more than 150 ft. apart. In every third position an auxiliary unit is centrally suspended, so that there can be adequate lighting down and across what would otherwise be a dark central section of the road. After a roundabout, there is a dual carriage way and it is emphasized how necessary it is to treat dual carriage ways as if they were two separate roads. When the dual road bends away in the country from the 'roundabout', the lighting points become closer on the outside of the bend. Cross-road lighting treatment is also shown in several places. Lights here are arranged just beyond the crossing on the left-hand side as the traffic proceeds ; then traffic moving at right angles and pedestrians preparing to cross the road become clearly visible. In addition, photographs are shown to illustrate the more important features demonstrated by the model and suggested in the recommendations. A fuller description of this model is given in the Osram G.E.C. Bulletin of May 1938.

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