D. Overrule any other laws and traffic control devices.
Laws and traffic control devices are undoubtedly compulsory to be followed at every point in time to control traffic and other related situations. However, there are cases when certain instructions overrule these laws and traffic control devices. For example, when a traffic police is giving instructions, and though the traffic control devices too (such as traffic lights) are displaying their own preset lights to control some traffic, the instructions from the traffic police take more priority. This is because at that point in time, the instructions from the traffic control devices might not be just applicable or sufficient.
Also, in the case of instructions given by construction flaggers, these instructions have priority over those from controlling devices. This is because during construction traffic controls are redirected from the norms. Therefore, the flaggers such be given more importance.
The correct answer is; They will override and take precedence over any road signs.
When there is a construction flagger or traffic police officer on the road, their instructions will the rules to follow and not the road signs. Many times the flaggers are on the scene because there is road work or a crash site ahead. There are numerous types of gestures and signs that the flaggers may use at any given time.
It is very important to slow down when there are traffic police or construction flaggers as they are often in the middle of traffic and this is very dangerous. When the flagger puts one hand up and outstretched towards oncoming traffic this means to stop. The flagger will then use the other hand to signal with a finger/fingers for the other traffic to move.
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