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  2. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    Emergency vehicle lighting, also known as simply emergency lighting or emergency lights, is a type of vehicle lighting used to visually announce a vehicle's presence to other road users. A sub-type of emergency vehicle equipment, emergency vehicle lighting is generally used by emergency vehicles and other authorized vehicles in a variety of colors.

  3. Variations in traffic light operation - Wikipedia

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

    In traffic engineering, there are regional and national variations in traffic light operation. This may be in the standard traffic light sequence (such as the inclusion of a red-amber phase) or by the use of special signals (such as flashing amber or public transport signals).

  4. Signal lamp - Wikipedia

    en.wikipedia.org/wiki/Signal_lamp

    Signal lamp. A signal lamp (sometimes called an Aldis lamp or a Morse lamp[1]) is a visual signaling device for optical communication by flashes of a lamp, typically using Morse code. The idea of flashing dots and dashes from a lantern was first put into practice by Captain Philip Howard Colomb, of the Royal Navy, in 1867.

  5. Traffic light control and coordination - Wikipedia

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

    Traffic light control and coordination. A junction for road vehicles and pedestrians controlled by traffic lights in the UK. The various vehicle and pedestrian movements are separated in either time or space for safety and efficiency. The normal function of traffic lights requires more than sight control and coordination to ensure that traffic ...

  6. School bus traffic stop laws - Wikipedia

    en.wikipedia.org/wiki/School_bus_traffic_stop_laws

    In Pennsylvania, the only vehicle that may pass a stopped school bus with the red lights flashing is an emergency vehicle with its flashing lights and siren activated, but only after the emergency vehicle has come to a complete stop and proceeds with due caution for any students embarking or disembarking. [22][23]

  7. 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 type of device that is used at existing or new pedestrian crosswalks to warn drivers of oncoming pedestrian traffic. The device usually consists of LED lights that are embedded into the roadway alongside the crosswalk and are oriented to face oncoming traffic.

  8. Headlight flashing - Wikipedia

    en.wikipedia.org/wiki/Headlight_flashing

    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. The signal is sometimes referred to ...

  9. Combined Charging System - Wikipedia

    en.wikipedia.org/wiki/Combined_Charging_System

    The Combined Charging System allows AC charging using the Type 1 and Type 2 connector depending on the geographical region. This charging environment encompasses charging couplers, charging communication, charging stations, the electric vehicle and various functions for the charging process such as load balancing and charge authorization.