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  2. Virginia State Route 620 (Fairfax and Loudoun Counties)

    en.wikipedia.org/wiki/Virginia_State_Route_620...

    It ends at the roundabout with SR 705 (Lightridge Farm Rd.) in Stone Ridge. Braddock Road, now designated SR 705, continues northwest to US 15 near Gilberts Corner. Braddock Road where it forms the border of North Springfield. Among the cities, towns and other landmarks traversed by SR 620 are:

  3. Gilberts Corner, Virginia - Wikipedia

    en.wikipedia.org/wiki/Gilberts_Corner,_Virginia

    A design memorandum was produced in 2003, followed by full construction design documents. Project construction began in 2007, with various elements of the project completed and some underway. "Lessons Learned "Roundabouts were used to address traffic congestion and safety at key intersections such as Route 50 and Route 15 at Gilberts Corner.

  4. Virginia State Route 20 - Wikipedia

    en.wikipedia.org/wiki/Virginia_State_Route_20

    Two new roundabouts have been approved to be implemented along SR 20. The first would be at the intersection of SR 20 and SR 231 in Somerset. Construction is expected to begin in 2020. [6] [7] The second roundabout would be at the intersection of SR 20 and US 33 just south of Barboursville. This project might also include reconstruction of the ...

  5. Indian Roads Congress - Wikipedia

    en.wikipedia.org/wiki/Indian_Roads_Congress

    Design in any road should adhere to certain basic principles for helping pedestrians navigate the footpath safely . Indian Road Congress (IRC) laid down the following guidelines as per international best practices which are specified by the Institute for Transportation and Development Policy (ITDP). [6]

  6. Rumble strip - Wikipedia

    en.wikipedia.org/wiki/Rumble_strip

    In 2010, Reno County planned to remove rumble strips from a roundabout after residents complained about excessive noise levels. [ 55 ] The Transportation Association of Canada and US FHWA guidelines basically specify that a width of 1.5 m (4.9 ft) of clear paved shoulder between the outside of the rumble strip and the edge of pavement is ...

  7. Three-level diamond interchange - Wikipedia

    en.wikipedia.org/wiki/Three-level_diamond...

    It is similar in design to a three-level stacked roundabout except for its use of (usually signalled) conventional intersections, and can be thought of as two diamond interchanges fused together. Road enthusiasts sometimes use the terms volleyball interchange or split-level diamond interchange to refer to these interchanges.

  8. Virginia State Route 106 - Wikipedia

    en.wikipedia.org/wiki/Virginia_State_Route_106

    The state highway passes through another roundabout with the incomplete roads of the subdivision before reaching its northern terminus at a roundabout with SR 249 (New Kent Highway) in Talleysville. The north leg of the intersection is SR 609 (Old Church Road), which leads to St. Peter's Church .

  9. Junctions (software) - Wikipedia

    en.wikipedia.org/wiki/Junctions_(software)

    ARCADY (Assessment of Roundabout Capacity And DelaY) models traffic capacity, queues, and delays at roundabouts. [2] The software is largely based on empirical relationships between roundabout geometry and capacity, which were established as the result of extensive research carried out on existing roundabouts on the UK road network, as well as ...