“Police officers will activate this while at a scene that is not overly active. This shows a law enforcement presence without the added flash patterns and unneeded attention.
What does it mean when a police car has lights on but no siren? It means they don't wish to wake up a entire neighborhood because they have to be somewhere ASAP.
“If you see a car, SUV and/or truck with a flashing blue light, please consider treating it like any other emergency vehicle,” the post noted. “We are requesting the right of way.” When it's safe to do so, drivers should pull over to the right and come to a complete stop so they can travel safely past.
The blue lights are active whenever a traffic light is red. With this, officers patrolling certain intersections can wait in a spot that is safer to pull out if they have to catch a driver who ran a red light.
The department installed LED lights with a white coating "a while ago," Iowa DOT said in a Facebook post. Now, that coating is flaking off, causing the lights to appear more blue or purple. The LED lights were originally installed to replace sodium vapor lights from the 1970s.
“It provides an additional visibility that officers are in the area. Cruise lights can be seen without them flashing but they can actually be seen for a block away so individuals can say, 'oh there's a police officer over there,'” Davis said.
Unlike ambulance sirens, police vehicles have a siren that yelps with an effect of a short burst. Instead of a falling and rising loop, they shoot a loud bawling sound so that people easily understand if a police vehicle is arriving.
In Queensland, an emergency vehicle with lights and/or sirens on is permitted to exceed speed limits and proceed through red lights and stop signs, when safe to do so.
This duty will see police officers travel at speed well in excess of the posted limits and officers need to be reminded that the maximum permissible speed allowed during an intercept is 140 km/h.
In other words, the police do not need to obey traffics laws, but only if they are exercising a power or performing a function as required. This means that the police are lawfully allowed to speed, drive through red lights and do other acts which would ordinarily be a traffic offence.
If you are injured in a motor vehicle accident on an ACT road or road related area you are entitled to free ambulance services provided at the scene of the accident.
Lights ON and Siren ON
If both the lights and sirens of an ambulance are ON, It indicates the Patient's condition is critical. It gives us an idea that the Patient needs to be transported to the hospital as soon as possible.
The National Weather Service has determined two weather conditions for siren use. A steady tone, lasting 3 minutes, means a tornado watch or a severe thunderstorm watch. A wailing tone (6 sec. Hi/6 Low) lasting 3 minutes, means a tornado warning or severe thunderstorm warning.
If you see a white flashing light, the police may be using it as a warning but are more likely to be trying to identify a particular vehicle or to illuminate your vehicle or one in your vicinity, and you do not need to stop or pull over unless they use their tactical blue and red lights.
Blue and White Strobe Lights warn pedestrians and motorists. Check your state regulations with our easy to use guide.
Blue light helps regulate your circadian rhythm, or wake-and-sleep cycle. But watching TV or scrolling through social media too late at night can have the opposite effect. The blue light stimulates your brain, slowing or stopping release of the sleep hormone melatonin. That makes it harder to get a good night's sleep.
A flashing GREEN light indicates a volunteer ambulance service member responding to an emergency call.
Magenta (purple) lights are primarily used by heavy vehicle enforcement/escort officers of the NSW Roads and Maritime Services, Victorian VicRoads and South Australian Transport Safety Inspectors.
Objectives: In case of medical emergency, an ambulance uses siren (which produces noise up to 120 dB) to alert the traffic on the road to give way. However, siren noise is troublesome to the patient lying inside. This calls for noise control inside the ambulance.
Originally, sirens were shown as male or female, but the male siren disappeared from art around the fifth century BC.
The Chrysler Air Raid Siren (second generation), or known as the Chrysler Bell Victory Siren (first generation) is an outdoor warning siren produced during the Cold War era that has an output of 138 dB(C) at 100 feet (30 m).
In short, it means that something life-threatening is happening and you should go indoors and get more information. The specific guidelines (tornado, hail ,wind, etc.)
Eligible Victorians holding a valid Pensioner Concession or Health Care Card currently receive free clinically necessary transport. This may not apply when being transported from a private healthcare facility. Patients can find frequently asked questions and answers on concession benefits at Ambulance Victoria.
Ambulance services are not free of charge in every state of Australia. Only citizens of Tasmania and Queensland can receive ambulance cover from the government. The maximum cost of ambulance services can amount to well over $6000.00. The patient who requires the ambulance service has to cover the costs of the services.