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  2. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    In California, all emergency vehicles just use red warning lights, with 1 steady red warning light facing forward. Blue lights may only be used on vehicles operated by Peace Officers, as defined under California Penal Code 830.1 to 830.38. (California Vehicle Code 25258(b)) -Commonly referred to as "California Standard".

  3. Traffic signal preemption - Wikipedia

    en.wikipedia.org/wiki/Traffic_signal_preemption

    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.

  4. Courtesy lights - Wikipedia

    en.wikipedia.org/wiki/Courtesy_lights

    A vehicle lawfully displaying courtesy lights is not an emergency response vehicle. In most states, vehicles displaying courtesy lights must still stop at stop signs, red lights, etc. and may not speed or disobey any traffic regulations. [1] Usually, violation ticket fines are increased if the ticketed car was flashing courtesy lights.

  5. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    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.).

  6. Rules of the Road: Lights and sirens, oh my! When to pull ...

    www.aol.com/rules-road-lights-sirens-oh...

    A: I’d like to believe that when we see an emergency vehicle approaching with lights and siren, we all want to do the right thing. But as I’ve experienced, and likely you have too, when an ...

  7. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    Red lights supplement stop signs on the side road approaches. All-way red flashing lights can supplement all-way stop control, but all-way yellow signals are prohibited by US regulations. In Canada a flashing yellow light at an intersection that would otherwise have traffic signals indicates that the traffic signals are malfunctioning.

  8. Emergency vehicle - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle

    A police van and an ambulance in Thuringia, Germany in 2013. An emergency vehicle is a vehicle used by emergency services.Emergency vehicles typically have specialized emergency lighting and vehicle equipment that allow emergency services to reach calls for service in a timely manner, transport equipment and resources, or perform their tasks efficiently.

  9. Warning triangle - Wikipedia

    en.wikipedia.org/wiki/Warning_triangle

    According to § 15 StVO, a stranded vehicle must be secured with a warning triangle at a sufficient distance, whereby the law orders a minimum distance of 100 metres in the case of fast traffic, such as motorways. This applies not only to the driver of broken-down vehicles, but also the rescue service that stops and offers help.