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2. Back-up beeper - Wikipedia

   en.wikipedia.org/wiki/Back-up_beeper

   A white-noise back-up beeper provides a less disruptive alert than the original pure-tone alert. A back-up beeper, also known as back-up alarm or vehicle motion alarm, is a device intended to warn passers-by of a vehicle moving in reverse. Some models produce pure tone beeps at about 1000 Hz and 97-112 decibels. [1]

3. Electric vehicle warning sounds - Wikipedia

   en.wikipedia.org/wiki/Electric_vehicle_warning...

   As a result of increased sales of full electric vehicle and hybrid electric vehicles in several countries, some members of the blind community have raised concerns about the noise reduction when those vehicles operate in all-electric mode, as blind people or the visually impaired consider the noise of combustion engines a helpful aid while crossing streets and think quiet hybrids could pose an ...

4. Vehicle horn - Wikipedia

   en.wikipedia.org/wiki/Vehicle_horn

   Diagram showing how a car horn works. A horn grille is a part of some designs of car or other motor vehicle that has an electric horn, such as a motor scooter. Larger, louder air horns, as found on trucks (lorries) and buses, are driven by air compressors, or supplied by reservoirs charged to operate their air brakes. The compressor forces air ...

5. Reversing (vehicle maneuver) - Wikipedia

   en.wikipedia.org/wiki/Reversing_(Vehicle_maneuver)

   A two-trailer vehicle driving backwards. Reversing (also known as backing up) is the process of driving a vehicle in the reverse direction in order to maneuver. Rear view mirrors are somewhat standard equipment for this endeavor. Reversing a vehicle is used as an intermediate step to complete a three point turn, J-turn, parallel park, or ...

6. Roadway noise - Wikipedia

   en.wikipedia.org/wiki/Roadway_noise

   Roadway noise is the collective sound energy emanating from motor vehicles. It consists chiefly of road surface, tire, engine/transmission, aerodynamic, and braking elements. Noise of rolling tires driving on pavement is found to be the biggest contributor of highway noise and increases with higher vehicle speeds. [1] [2] [3]

7. J-turn - Wikipedia

   en.wikipedia.org/wiki/J-turn

   The turn is achieved by transferring the momentum of the car by reversing quickly in a straight line then turning the wheel sharply while using a brake to lock the front wheels. The driver changes into a forward gear as the nose comes about. [2]

8. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

9. Three-point turn - Wikipedia

   en.wikipedia.org/wiki/Three-point_turn

   Performing a three-point turn (shown for right-hand traffic). The three-point turn (sometimes called a Y-turn, K-turn, or broken U-turn) is the standard method of turning a vehicle around to face the opposite direction in a limited space, using forward and reverse gears.