Ministry Backs War on Dazzle A STRONG . appeal to drivers
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to coPi. operate in the prevention of dazzle, was made on Monday by the Ministry of Transport. The Road Research Board has issued an interim report dealing with the extent to which faulty adjustment of head lamps is responsible for dazzle.
The report suggests that head lamps should be set so that the driving beams do not rise above the horizontal, and that pass lamps should be adjusted so that the maximum intensity of the beam is dipped at. least three degrees below the horizontal—a 1-ft. dip at a point 19 ft, from the lamp. . Neither head lamps nor pass lamps should be directed to the right:
The Ministry asks drivers to adjust low-mounted pass lamps and fog lamps to pointto the left, and -to dip fog lamps in the same way as pass lamps. if lamps have front glasses with flutings intended to be vertical, drivers should make sure that the flutings do not tilt from the bottom left-hand corner to the top right-hand corner when viewed front the front.
The report recommends that head lamps and pass lamps should be mounted not higher than 3 ft. 6 ins., and, preferably, not lower than 2 ft. 6 ins, from the ground. The Ministry agrees with these limits and is consulting the Society of Motor Manufacturers and Traders on the question of making appropriate regulations. It seems probable, however, that regulations could apply fully only to new vehicles and, even in that case, there might be practical difficulties in the way of altering designs already in production.
The Road Research Board advocates the total prohibition of the use of lamps with centres less than 2 ft. from the ground, except when these are used in fog or snow.
The Ministry is giving further consideration to this problem, because where a low-mounted lamp is the only device available to comply with the existing anti-dazzle regulations, prohibition of its use, it is stated, might make the lighting system of a vehicle illegal