| 摘要 |
At a traffic light or the like having a blocking member, which can automatically be activated or made inactive by an assigned switching device (4) according to a given program, in the form of a signalling lamp (3c), a convenient estimate of the remaining time of the current blocking phase can be achieved in a simple manner in that the blocking member (3c) is assigned a time display device (6) which can be activated together with said blocking member and, in the activated state, runs backwards starting from the value corresponding to the duration of the activation phase. <IMAGE>
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