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  2. File:Two-lane roundabout and turborondabout intersection ...

    en.wikipedia.org/wiki/File:Two-lane_roundabout...

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  3. Contraflow lane reversal - Wikipedia

    en.wikipedia.org/wiki/Contraflow_lane_reversal

    Contraflow lane reversal is the altering of the normal flow of traffic, typically on a controlled-access highway (such as a freeway or motorway), to either aid in an emergency evacuation (the most common usage of the term in the United States) or, as part of routine maintenance activities, to facilitate widening or reconstruction of one of the highway's carriageways (the most common usage in ...

  4. ODOT plans roundabout for state Route 65, Bluelick Road - AOL

    www.aol.com/news/odot-plans-roundabout-state...

    Oct. 3—AMERICAN TOWNSHIP — The Ohio Department of Transportation plans to construct a roundabout at the intersection of state Route 65 and Bluelick Road to alleviate traffic congestion and the ...

  5. Diamond interchange - Wikipedia

    en.wikipedia.org/wiki/Diamond_interchange

    A dumbbell interchange along Ontario Highway 401 in Clarington, Ontario, Canada.This one features a loop ramp. The ramp intersections may also be configured as a pair of roundabouts [1] to create a type of diamond interchange often called a dumbbell interchange [citation needed] (due to its aerial resemblance to a dumbbell), and sometimes called a double roundabout interchange.

  6. NCDOT plans a roundabout at another rural crossroads in ... - AOL

    www.aol.com/news/ncdot-plans-roundabout-another...

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  7. List of gaps in Interstate Highways - Wikipedia

    en.wikipedia.org/wiki/List_of_gaps_in_Interstate...

    A new multi-lane roundabout intersection will be constructed to replace the existing cloverleaf interchange and provide improved access to and from I-55 and existing local roadways. [17] I-555 at its southern terminus through the I-55/U.S. 61/AR 77 interchange becomes a two-lane undivided highway for 0.34 mi (0.55 km).

  8. Partial cloverleaf interchange - Wikipedia

    en.wikipedia.org/wiki/Partial_cloverleaf_interchange

    In Ontario, the specific variation is identified by a letter/number suffix after the name.Ontario's naming conventions are used in this article. The letter A designates that two ramps meet the freeway ahead of the arterial road, while B designates that two ramps meet the freeway beyond the crossing.

  9. 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.