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Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment , emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of ...
The use of flashing lights and sirens is colloquially known as blues and twos, which refers to the blue lights and the two-tone siren once commonplace (although most sirens now use a range of tones). In the UK, only blue lights are used to denote emergency vehicles (although other colours may be used as sidelights, stop indicators, etc.).
The law requires that “upon the immediate approach of an authorized emergency vehicle” all other drivers shall yield the right-of-way by pulling over to the right side of the roadway clear of ...
Traffic signal preemption (also called traffic signal prioritisation) is a system that allows an operator to override the normal operation of traffic lights.The most common use of these systems manipulates traffic signals in the path of an emergency vehicle, halting conflicting traffic and allowing the emergency vehicle right-of-way, thereby reducing response times and enhancing traffic safety.
Aug. 5—Editor's note: This story was edited to clarify that drivers must slow down or move over for any stopped vehicles displaying hazard lights. On Monday, the newest changes to the "Move Over ...
Emergency vehicles are usually given right of way in traffic, and may be exempted from certain basic road laws to reach their destinations in the fastest possible time, such as driving through a red traffic light or exceeding the speed limit; however, this is almost always done with emergency lights and sirens on, to alert traffic that the ...
A Volvo pump truck from South Australian Fire with red-and-yellow Battenburg markings. Battenburg markings or Battenberg markings [a] are a pattern of high-visibility markings developed in the United Kingdom in the 1990s and currently seen on many types of emergency service vehicles in the UK, Crown dependencies, British Overseas Territories and several other European countries including the ...
NWAS ambulance displays the operation of a wig-wag: only one headlight operates at a time, with the two flashing alternately at a preset rate. A wig-wag is a device for flashing an automobile's headlamps, in its simplest form, so only one of the two headlights operates at a time, with the two flashing at a preset rate. In its traditional form a ...