Split intersection
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A Split Intersection is a rarely built at-grade variant of the diamond interchange,.[1] Compared to a conventional four leg intersection or road crossing, the artierial road is beeing split-up into separated carriageways by 200 to 300 feet, allowing a queue of left turning vehicles behind a completed turn into the crossroad without any conflict to oncoming traffic. On the crossroad, the four leg intersection is beeing replaced by two intersections. The beginning one way at the fourth leg makes the intersecions reduce the number of conflicts similar to a three leg T-intersection to improve traffic flow.[2][3]
Existing intersections
- At Legacy Drive and Preston Parkway, Plano, Texas, with Texas U-turn lanes, 33°04′15″N 96°47′46″W / 33.070835°N 96.796246°W
- At New Dallas Highway (US-77) and E. Industrial Boulevard TX-340 in Lacy Lakeview, Texas, 31°36′19″N 97°06′39″W / 31.605353°N 97.110952°W
Further reading
- Simulation of the Split Intersection, ATTAP, University of Maryland, 11 November 2015
See also
References
- ^ Joe G. Bared and Evangelos I. Kaisar: Advantages of The Split Intersection, Federal Highway Administration, Issue No: Vol. 63 No. 6, June 2000
- ^ Joe Bared, Evangelos Kaisar: Benefits of Split Intersections, Transportation Research Board, DOI 10.3141/1737-05
- ^ Federal Highway Administration: Signalized Intersections: Informational Guide, Chapter 10.3.1, publikation number FHWA-HRT-04-091, 2004 (PDF)