Road traffic weather observation system and spontaneous light road sign system

摘要

Among the visibility meter, illuminometer, wind direction anemometer and thermometer, at least a plurality of sensor units 1 having a visibility meter and an illuminometer Equipped with 1, centralized management of meteorological information detected by the plurality of sensor units is provided with an information processing management unit 2 for predicting the danger in the observation area of the road, and the output information of the information processing management unit 2 is connected to the road facility 4 via a network ... In the self luminous road sign system which is displayed on 4, an optimum luminous intensity which is a constant contrast is calculated based on the background luminance of the road obtained by the illuminator of the sensor unit, and output from the visibility meter based on the optimum light emission luminance Based on the visibility information, the light emitting luminance or the information display of the sign portion is controlled.