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Accession Number PB2013-105495
Title Development of Recommendations for Arterial Lane Closures to Optimize Traffic Operations.
Publication Date Jan 2013
Media Count 104p
Personal Author L. Elefteriadou Z. Li
Abstract The 2010 FDOT Design Standards provide information regarding traffic control through work zones at multilane arterials. However, there are currently no quantitative guidelines for optimizing signal control around work zones. The objective of this project was to formulate suitable recommendations for the development of signal control plans, including phasing, signal timings, and channelization. The research focused on multilane arterial streets. These signal control optimization guidelines were developed distinguishing between three different cases: (1) Case 1: Lane Closure before the Intersection. In this case, the work zone area blocks one or more lanes upstream of the intersection, and there is some distance from the work zone to the stop bar. (2) Case 2: Lane Closure at the Stop Bar. This case can be further divided into two subcases: lane closure at the stop bar that causes changes in the type of the remaining lanes and lane closure at the stop bar that reduces the number of lanes but does not change the remaining channelization. (3) Case 3: Lane Closure at Some Distance Downstream from the Subject Intersection. In this case, the work zone area will block some lanes in the middle of an arterial link between two intersections. There are three key parameters in this case: demand from the upstream intersection (D(sup upstream)), capacity of the lane closure area (C(sup closure)), and capacity of the downstream intersection (C(sup downstream)). Detailed guidelines were developed to optimize signal control around each of the work zone cases described above. A combination of field data and simulation was used to evaluate these guidelines and document their effectiveness under different demand conditions.
Keywords Arterial highways
Construction site traffic signal
Design standards
Lane closures
Road conditions
Traffic control
Traffic safety
Work zones

Source Agency Department of Transportation
NTIS Subject Category 85D - Transportation Safety
85H - Road Transportation
43G - Transportation
91B - Transportation & Traffic Planning
Corporate Author Florida Univ., Gainesville. Transportation Research Center.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1313
Contract Number BDK77-977-13

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