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  2. Gridlock - Wikipedia

    en.wikipedia.org/wiki/Gridlock

    Gridlock on a network of two-way streets. The red cars are those causing the gridlock by stopping in the middle of the intersection. Gridlock is a form of traffic congestion where continuous queues of vehicles block an entire network of intersecting streets, bringing traffic in all directions to a complete standstill.

  3. Rules for traffic lights - Wikipedia

    en.wikipedia.org/wiki/Rules_for_traffic_lights

    The definition of the intersection area is a square where the two streets overlap marked by the inner lines of each crosswalk. (Occupying the space inside the crosswalk lines is itself a traffic infraction, but different from gridlocking.) This gives meaning to the anti-gridlock slogan "don't block the box".

  4. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    Green – Proceed if the intersection or crossing is clear; vehicles are not allowed to block the intersection or crossing. Amber – Stop, unless it is unsafe to do so. A speed sign is a special traffic light, variable traffic sign , or variable-message sign giving drivers a recommended speed to approach the next traffic light in its green ...

  5. Glossary of road transport terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_road_transport...

    See three-way junction 5-1-1 A transportation and traffic information telephone hotline in some regions of the United States and Canada that was initially designated for road weather information. A Access road See frontage road Advisory speed limit A speed recommendation by a governing body. All-way stop or four-way stop An intersection system where traffic approaching it from all directions ...

  6. At cross streets, one motorcycle would block the intersection and the rest would drive through. Red lights were ignored. ... the dictionary definition includes a large group, a nomadic group, and ...

  7. Stop and yield lines - Wikipedia

    en.wikipedia.org/wiki/Stop_and_yield_lines

    In some cases stop or yield lines are used in advance of mid-block crosswalks. A stop line is a type of marking used to inform drivers of the point where they are required to stop at an intersection or roundabout controlled by a stop sign or traffic signal. It is also known as a stop bar. [2]

  8. Road signs in the United States - Wikipedia

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

    Do not block intersection. R10-8 Use lane with green arrow. R10-10R Right turn signal. R10-10L Left turn signal. R10-10a U turn Signal. R10-10bR Right lane signal ...

  9. Variations in traffic light operation - Wikipedia

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

    An intersection in South Australia. This intersection uses the Protected/Permissive right turn explained here. If right-turn traffic on the opposite side runs out, then the main light on the facing side will turn green with the shown arrow (in the distance) remaining green until it runs out of right-turn traffic.