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  2. Embedded pavement flashing-light system - Wikipedia

    en.wikipedia.org/wiki/Embedded_pavement_flashing...

    An embedded flashing-light system, or an in-pavement flashing-light system, is a traffic safety device installed at pedestrian crossings or intersections to enhance driver awareness of pedestrians or traffic signals. These systems typically consist of LED lights embedded within the road surface, positioned to face oncoming traffic or pedestrians.

  3. Variable-message sign - Wikipedia

    en.wikipedia.org/wiki/Variable-message_sign

    A variable-(also changeable-, [1] electronic-, or dynamic-) message sign or message board, often abbreviated VMS, VMB, CMS, or DMS, and in the UK known as a matrix sign, [2] is an electronic traffic sign often used on roadways to give travelers information about special events.

  4. Traffic light control and coordination - Wikipedia

    en.wikipedia.org/wiki/Traffic_light_control_and...

    This three-arm signal controlled junction has three vehicle phases (A, B and C) and a pedestrian phase (D). The phases operate together in three stages (1, 2 and 3). Moving phases are shown in green and stopped phases are shown in red. Phases are indications shown to traffic on traffic signal aspects (a single light on a signal head). For ...

  5. Smart traffic light - Wikipedia

    en.wikipedia.org/wiki/Smart_traffic_light

    Unlike other dynamic control signals that adjust the timing and phasing of lights according to limits that are set in controller programming, this system combines existing technology with artificial intelligence. The signals communicate with each other and adapt to changing traffic conditions to reduce the amount of time that cars spend idling.

  6. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    In New Zealand, where traffic is on the left, when a road is given a green light from an all-direction stop, a red arrow can continue to display to turning traffic, holding traffic back while a pedestrian crossing on the side road is given a green signal (for left turns) or while oncoming traffic goes straight ahead and there is no permissive right turn allowed (for right turns).

  7. Traffic signal preemption - Wikipedia

    en.wikipedia.org/wiki/Traffic_signal_preemption

    Traffic signal preemption (also called traffic signal prioritisation) is a system that allows an operator to override the normal operation of traffic lights.The most common use of these systems manipulates traffic signals in the path of an emergency vehicle, halting conflicting traffic and allowing the emergency vehicle right-of-way, thereby reducing response times and enhancing traffic safety.

  8. Headlight flashing - Wikipedia

    en.wikipedia.org/wiki/Headlight_flashing

    Typical dashboard icon indicating that high beams are illuminated. Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers.

  9. Radar speed sign - Wikipedia

    en.wikipedia.org/wiki/Radar_speed_sign

    Standard radar speed sign with block letters. Pictured with solar panel.. A radar speed sign or speed feedback sign is an interactive sign comprising a speed-measuring device (e.g. a loop detector or radar) and a message sign generally constructed of a series of LEDs, which displays vehicle speed of approaching motorists. [1]