stop...
A police officer assuming control of that intersection will have precedence over a traffic signal. If their signals are contrary to the traffic signal, you'll follow their signal.
The police officer overrules any traffic signal if he is out signaling traffic.
If the officer is directing traffic, regardless of the sign or signal, the officer's signals take precedence.
Traffic signals were invented by Garrett A Morgan in 1923.
Left-Turn Signals: Where left-turning traffic is especially heavy and/or the amount of.
A police officer can signal traffic to stop by using hand signals or using their patrol vehicle's emergency lights and siren. They may extend their arm out to the side with their palm facing the traffic, indicating that it should stop. They may also use their police vehicle's lights and sirens to grab the attention of the drivers and indicate they need to stop.
The whole point of having a police officer directing traffic is that he will override the traffic signals in order to create a better flow of traffic. This can be necessary during unusual happenings such as a traffic accident or a sports stadium emptying out. If motorists were going to obey the traffic lights anyway, there would be no point in putting the police officer there!
The traffic signal is on a timer. It helps regulate traffic through an intersection.
A "signal plan" is typically a document that outlines how signals are used or managed, whether in traffic control or communication systems. It specifies signal timings in traffic or signal allocation in communication networks.
Amber in the traffic signal means caution. Generally, it is best to stop on an amber light.
All Interstates are limited access and do not have traffic signals.
Traffic signals in the UK already have a time delay built-in. From the time the signal goes red, there is a short delay before the opposing signal changes to amber, then green. This is to allow any traffic already moving, or waiting in the junction, to clear the 'danger' area before other traffic starts to move.
Yes they do ! If they use the same roads as 'regular' traffic - they must obey traffic signals etc.
A sign made for the purpose of giving notice to a person of some occurence, command, or danger; also, a sign, event, or watchword, which has been agreed upon as the occasion of concerted action., A token; an indication; a foreshadowing; a sign., Noticeable; distinguished from what is ordinary; eminent; remarkable; memorable; as, a signal exploit; a signal service; a signal act of benevolence., Of or pertaining to signals, or the use of signals in conveying information; as, a signal flag or officer., To communicate by signals; as, to signal orders., To notify by a signals; to make a signal or signals to; as, to signal a fleet to anchor.