Safety Evaluation of Right Turns Followed by U-turns at Signalized Intersections (6 Or More Lane Arterials) as an Alternative to Direct Left Turns
Author: Lu, Jian John Lu
Publisher:
Published: 2005
Total Pages: 172
ISBN-13:
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Author: Lu, Jian John Lu
Publisher:
Published: 2005
Total Pages: 172
ISBN-13:
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Publisher:
Published: 2001
Total Pages: 230
ISBN-13:
DOWNLOAD EBOOKAuthor: Jian John Lu
Publisher:
Published: 2005
Total Pages: 260
ISBN-13:
DOWNLOAD EBOOKAuthor: Jian John Lu
Publisher:
Published: 2001
Total Pages: 158
ISBN-13:
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Publisher:
Published: 2005
Total Pages: 230
ISBN-13:
DOWNLOAD EBOOKAuthor: Fatih Pirinccioglu
Publisher:
Published: 2007
Total Pages: 131
ISBN-13: 9781109978568
DOWNLOAD EBOOKImpacts of separation distance on safety of RTUT movements were investigated by a regression model. The model investigated impacts of U-turn bay locations and the number of lanes on major arterial on separation distance requirements. The model results indicated that U-turn bays located at signalized intersections and greater number of lanes on major arterials increases the minimum separation distance requirements.
Author: Jian John Lu
Publisher:
Published: 2005
Total Pages: 244
ISBN-13:
DOWNLOAD EBOOKAuthor: Jian John Lu
Publisher:
Published: 2005
Total Pages: 194
ISBN-13:
DOWNLOAD EBOOKFlorida increasingly uses restrictive medians and directional median openings on multi-lane highways to manage left turn egress maneuvers from driveways and side streets. By installing non-traversable medians and replacing full median openings with directional median openings at various locations, Florida prohibits direct left-turn exits onto some major arterials. The purpose of this research was to evaluate how the offset distance between driveway exits and downstream median openings or signalized intersections impacts traffic operational and safety performance. The primary objective is to determine optimum offset distances to facilitate driver use of Right Turn Followed by a U-Turn (RTUT) maneuvers, specifically investigating (1) traffic operational performance, based on the evaluation of vehicle travel time at various offset distances, and (2) safety performance, based on the evaluation of traffic conflicts and crash data. The focus of this research was on urban or suburban multi-lane divided arterials. Researchers studied the impacts of offset distance under four different scenarios: 4-lane divided roadways accommodating U-turns at median openings, 4-lane divided roadways accommodating U-turns at signalized intersections, 6 or more-lane divided roadways accommodating U-turns at median openings, and 6 or more-lane divided roadways accommodating U-turns at signalized intersections.
Author: John Lu
Publisher:
Published: 2001
Total Pages: 69
ISBN-13:
DOWNLOAD EBOOKAuthor: Lee August Rodegerdts
Publisher: Transportation Research Board
Published: 2010
Total Pages: 407
ISBN-13: 0309155118
DOWNLOAD EBOOKTRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.