| 摘要 |
This installation includes a sending station mounted on the priority vehicle (1), signalling elements (5) consisting preferably of flashing blue lamps (2a, 2b, 2c, 2d; 3a, 3b, 3c, 3d; 4a, 4b, 4c, 4d), mounted on the supports of the traffic lights normally used for controlling urban traffic, a receiver station capable of picking up the directional signals from the sender and a warning device for triggering the flashing blue lights within a defined time lapse prior to the passing of the priority vehicle, when the signals from the sender are picked up by the receiver. <IMAGE>
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