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  2. Box junction - Wikipedia

    en.wikipedia.org/wiki/Box_junction

    A box junction in London, pictured from atop the Monument in 1969. A box junction is a road traffic control measure designed to prevent congestion and gridlock at junctions.The surface of the junction is typically marked with a yellow criss-cross grid of diagonal painted lines (or only two lines crossing each other in the box), and vehicles may not enter the area so marked unless their exit ...

  3. Diverging diamond interchange - Wikipedia

    en.wikipedia.org/wiki/Diverging_diamond_interchange

    The Missouri Department of Transportation (MoDot) was the first US agency to construct one, in Springfield at the junction between I-44 and Missouri Route 13 (at ). Construction began the week of January 12, 2009, and the interchange opened on June 21, 2009.

  4. Right-in/right-out - Wikipedia

    en.wikipedia.org/wiki/Right-in/right-out

    RIRO is an important tool of access management, itself an important component of transportation planning.A study applying access management guidelines to the redesign of Missouri Route 763 in Columbia, Missouri [4] illustrates how RIRO, combined with signalized intersections designed to permit U-turns, can accommodate high volumes of traffic with low delay and high safety.

  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. North American railroad signals - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    There are two main types of signaling aspect systems found in North America, speed signaling and weak route signaling. [citation needed] Speed signaling transmits information regarding how fast the train is permitted to be going in the upcoming segment of track; weak route signaling transmits information related to the route a train will be taking through a junction, and it is incumbent upon ...

  7. Railroad switch - Wikipedia

    en.wikipedia.org/wiki/Railroad_switch

    A right-hand railroad switch with point indicator pointing to right Animated diagram of a right-hand railroad switch. Rail track A divides into two: track B (the straight track) and track C (the diverging track); note that the green line represents direction of travel only, the black lines represent fixed portions of track, and the red lines depict the moving components.

  8. UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA

    images.huffingtonpost.com/2013-03-09-amicus.pdf

    Pursuant to Rule 26 of the Federal Rules of Civil Procedure and Local Certificate Rule 7.1, the Natural Resources Defense Council (“NRDC”) states that it is a charitable corporation, organized under Section 501(c)(3) of the Internal Revenue Code and under New York State law,

  9. Stack interchange - Wikipedia

    en.wikipedia.org/wiki/Stack_interchange

    A directional interchange, colloquially known as a stack interchange, is a type of grade-separated junction between two controlled-access highways that allows for free-flowing movement to and from all directions of traffic.