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  2. 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]

  3. School bus - Wikipedia

    en.wikipedia.org/wiki/School_bus

    To supplement the additional warning lights and to help prevent drivers from passing a stopped school bus, a stop arm was added to nearly all school buses; connected to the wiring of the warning lights, the deployable stop arm extended during a bus stop with its own set of red flashing lights.

  4. Road signs in the United States - Wikipedia

    en.wikipedia.org/wiki/Road_signs_in_the_United...

    Some signs can be localized, such as No Parking, and some are found only in state and local jurisdictions, as they are based on state or local laws, such as New York City's "Don't Block the Box" signs. These signs are in the R series of signs in the MUTCD and typically in the R series in most state supplements or state MUTCDs.

  5. Crossing guard - Wikipedia

    en.wikipedia.org/wiki/Crossing_guard

    One of the two students leads the crossing with a series of verbal calls. When a gap in the traffic appears the leader calls "signs out" (both signs are extended onto the road). "Check" (Both students check that traffic is stopping/stopped). "Cross now" (students may cross safely) and finally "signs in" (Signs are withdrawn from road).

  6. Rules for traffic lights - Wikipedia

    en.wikipedia.org/wiki/Rules_for_traffic_lights

    A flashing amber traffic light usually indicates you have a yield or stop sign as a redundant sign, while a turned-off traffic light usually indicates you have the right-of-way. In the UK and parts of North America, drivers simply treat the junction as being uncontrolled when traffic lights fail, giving way as appropriate, unless a police ...

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  8. Variations in traffic light operation - Wikipedia

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

    Red lights supplement stop signs on the side road approaches. All-way red flashing lights can supplement all-way stop control, but all-way yellow signals are prohibited by US regulations. In Canada a flashing yellow light at an intersection that would otherwise have traffic signals indicates that the traffic signals are malfunctioning.

  9. 'Hateful' anti-immigrant signs referencing Kamala Harris ...

    www.aol.com/hateful-anti-immigrant-signs...

    A bus operator reported a sign around 5 a.m. Thursday, according to the RTD. The metal sign was attached to the bus stop’s pole with rivets and may have been installed shortly before it was ...