| 摘要 |
An alert system for generating, in the vicinity of an intersection, a wid e-area image which is indicative of the state of a corresponding traffic lig ht or of an actual or impending traffic safety problem, comprising one or mo re traffic lights deployed at an intersection, each of the traffic lights pr ovided with a plurality of sequentially illuminating lamps; at least one wid e-area image generating device mounted in the vicinity of the intersection; means for mounting each of the traffic lights and each of the wide-area imag e generating devices; and means for synchronizing operation of each of the w ide-area image generating devices and of corresponding traffic light lamps, wherein each of the wide-area image generating devices is adapted to generat e a wide-area image that is indicative of the state of a corresponding traff ic light or of an actual or impending traffic safety problem.
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