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Road signalling devices for facilitating the driving of vehicles in foggy weather
Road signalling devices for facilitating the driving of vehicles in foggy weather
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机译：用于在大雾天气下驾驶车辆的道路信号装置
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摘要
A signalling arrangement for indicating the path of a road in conditions of impaired visibility, in particular in fog, comprises series of roadside support elements (1) with fibre optic illumination. Said supports can be vertical display panels (5) on posts mounted on top of the guard wall (4) or of the guardrail structure, with the light-emitting ends of the optical fibres defining e.g. a directional chevron mark or part thereof; in a bend a plurality of such panels (5) may be positioned in a staggered array so as together to display a directional arrow. Alternatively, a tubular element (3) from which project a continuous series of spaced support elements (1) with spot fibre optic illumination (2) may be recessed into the flank of the guard wall (4).;To warn of the risk of a front-end pile-up, apparatus, e.g. induction coils, spaced along the road and adapted to detect stopped vehicles, may cause the up-stream fibre optic lights to flash.
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