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  2. Merge (traffic) - Wikipedia

    en.wikipedia.org/wiki/Merge_(traffic)

    A 'Queue in both lanes' sign orders drivers to use both lanes up to the merge point Zipper method road signage in Warsaw The late merge method, also known as zipper merging, dictates that both streams of traffic should continue to drive up to the point of closure of one stream and merge at the marked taper.

  3. Lane control lights - Wikipedia

    en.wikipedia.org/wiki/Lane_control_lights

    Lane control signals around the world follow their own universal pattern, as specified in the Vienna Convention on Road Signs and Signals. [1]: Art.23, ¶11 Typical signals include a green downward arrow, used to indicate a lane which is open to traffic facing the signal, a red cross, which indicates a lane is either reserved for opposing traffic or closed to traffic in both directions, and a ...

  4. Intersection (road) - Wikipedia

    en.wikipedia.org/wiki/Intersection_(road)

    An intersection or an at-grade junction is a junction where two or more roads converge, diverge, meet or cross at the same height, as opposed to an interchange, which uses bridges or tunnels to separate different roads. Major intersections are often delineated by gores and may be classified by road segments, traffic controls and lane design.

  5. Continuous-flow intersection - Wikipedia

    en.wikipedia.org/wiki/Continuous-flow_intersection

    The continuous flow intersection moves the left-turn conflict out of the intersection and synchronizes it with the signal cycle of the intersecting road. In the adjacent diagram, while the left/right traffic flows through the main intersection, the left-turn traffic crosses to the opposite side of the oncoming traffic a few hundred feet away.

  6. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    No lane changes are permitted to the continuous lane from an adjacent lane or from the continuous lane to an adjacent lane, until the double white line has been passed. Some continuous lanes are protected by a raised curb located between the continuous lane and a normal traffic lane, with white and/or amber reflective paint or tape, prohibiting ...

  7. Reversible lane - Wikipedia

    en.wikipedia.org/wiki/Reversible_lane

    A reversible lane, also known as variable lane, dynamic lane, and tidal flow, is a managed lane in which traffic may travel in either direction, depending on certain conditions. Typically, it is meant to improve traffic flow during rush hours, by having overhead traffic lights and lighted street signs notifying drivers which lanes are open or ...

  8. Lane departure warning system - Wikipedia

    en.wikipedia.org/wiki/Lane_departure_warning_system

    On roads where traffic signs are absent, it relies on the GPS data. When the car moves away from a lane at above 30 miles per hour (48 km/h), the system beeps and the steering wheel vibrate, alerting the driver of an unintended lane change. This happens during speed limit non-compliance as well.

  9. Hook turn - Wikipedia

    en.wikipedia.org/wiki/Hook_turn

    A hook turn (Australian English) or two-stage turn (British English), also known as a Copenhagen Left (in reference to cyclists specifically and in countries they are ridden on the right), [1] is a road cycling manoeuvre or a motor vehicle traffic-control mechanism in which vehicles that would normally turn from the innermost lane of an intersection instead turn from the outermost lane, across ...