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  2. Assured clear distance ahead - Wikipedia

    en.wikipedia.org/wiki/Assured_Clear_Distance_Ahead

    The ACDA may also be dynamic as to the moving distance past which a motorist can be assured to be able to stay clear of a foreseeable dynamic hazard—such as to maintain a distance as to be able to safely swerve around a bicyclist should he succumb to a fall—without requiring a full stop beforehand, if doing so could be exercised with due ...

  3. Lane departure warning system - Wikipedia

    en.wikipedia.org/wiki/Lane_departure_warning_system

    A lane detection system used behind the lane departure warning system uses the principle of Hough transform and Canny edge detector to detect lane lines from realtime camera images fed from the front-end camera of the automobile. A basic flowchart of how a lane detection algorithm works to help lane departure warning is shown in the figures.

  4. United Airlines Flight 1175 - Wikipedia

    en.wikipedia.org/wiki/United_Airlines_Flight_1175

    On February 13, 2018, around noon local time, a Boeing 777-222 [a] operating as United Airlines Flight 1175 (UA1175), experienced an in-flight separation of a fan blade in the No. 2 (right) engine while over the Pacific Ocean en route from San Francisco International Airport to the Daniel K. Inouye International Airport, Honolulu, Hawaii. [1]

  5. Lane centering - Wikipedia

    en.wikipedia.org/wiki/Lane_centering

    Lane centering keeps the vehicle centered in the lane and almost always comes with steering assist to help the vehicle take gentle turns at highway speeds. [10] Lane departure warning generates a warning when the vehicle crosses a line, while lane keeping assist helps the vehicle to avoid crossing a line, standardized in ISO 11270:2014.

  6. Move over law - Wikipedia

    en.wikipedia.org/wiki/Move_over_law

    A sign informing motorists of the state move-over law at a New York State Thruway service area. A move over law is a law which requires motorists to move over and change lanes to give safe clearance to law enforcement officers, firefighters, ambulances, utility workers, and in some cases, tow-truck drivers and disabled vehicles.

  7. Managed lane - Wikipedia

    en.wikipedia.org/wiki/Managed_lane

    The most important prerequisite condition necessary for managed lane demand to materialize is the presence of recurring traffic congestion. Managed lanes are by definition a congestion management strategy and have benefits that are only fully realized in the context of frequent traffic congestion that causes significant travel time delays and uncertainty over trip time reliability.

  8. Runaway truck ramp - Wikipedia

    en.wikipedia.org/wiki/Runaway_truck_ramp

    It is typically a long, sand- or gravel-filled lane connected to a steep downhill grade section of a main road, and is designed to accommodate large trucks or buses. It allows a moving vehicle's kinetic energy to be dissipated gradually in a controlled and relatively harmless way, helping the operator stop it safely.

  9. Contraflow lane reversal - Wikipedia

    en.wikipedia.org/wiki/Contraflow_lane_reversal

    Contraflow lane reversal is the altering of the normal flow of traffic, typically on a controlled-access highway (such as a freeway or motorway), to either aid in an emergency evacuation (the most common usage of the term in the United States) or, as part of routine maintenance activities, to facilitate widening or reconstruction of one of the highway's carriageways (the most common usage in ...