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The police car on the right is a slicktop car, lacking the traditional roof-mounted lightbar seen on the car on the left. The aerodynamic properties of light bars can be important for police applications, as fuel efficiency and drag are concerns in patrol and pursuit. Because of this, some police cars do not have roof mounted lightbars.
Signaling that the flashing driver is yielding the right of way, for example at an intersection controlled by stop signs. [6] Warning other drivers of road dangers, such as crashed cars or police speed traps. [7] Giving thanks to other drivers. For example, when one is warned of police presence, it is sometimes considered courteous to flash ...
The use of lights and sirens is up to the individual police officer driving to the call. The nature of the call is an aggravating factor when deciding when to use them. Calls are graded by either the control room direct (in the case of emergency calls) or by some sort of first contact centre (nonemergency calls).
Take-downs are used on police cars to illuminate the interior of a vehicle immediately in front of the police car, such as a vehicle that has been pulled over after committing a traffic violation or while conducting a high-risk vehicle stop (also called a felony stop). The bright lights also serve to blind the vision of suspects looking back ...
However, these lights sometimes do not detect smaller vehicles such as bikes or motorcycles. Traffic lights that do not service traffic due to non-detection may not meet the federal legal definition adopted by most states for a traffic control signal, which is any device "by which traffic is alternately directed to stop and permitted to proceed".
Drivers routinely ignore stop signs. This problem persists because there is almost zero traffic enforcement in this area. Isn’t it time to see our tax dollars at work, ensuring our streets are safe?
Some signs can be localized, such as No Parking, and some are found only in state and local jurisdictions, as they are based on state or local laws, such as New York City's "Don't Block the Box" signs. These signs are in the R series of signs in the MUTCD and typically in the R series in most state supplements or state MUTCDs.
A ghost car, also known as a stealth car or semi-marked car, is a police car that combines elements of both an unmarked car and a marked patrol car, featuring markings that are either similar colors to the vehicle's body paint, or are reflective graphics that are difficult to see unless illuminated by lights or viewed at certain angles. [19]