Author: Publisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 230
Book Description
Operational Evaluation of Right Turns Followed by U-turns at Signalized Intersections (6 Or More Lanes) as an Alternative to Direct Left Turns
Author: 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 LuPublisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 172
Book Description
Operational Evaluation of Right Turns Followed by U-turns at Signalized Intersections as an Alternative to Direct Left Turns
Author: Jingjing FanPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
ABSTRACT: Data reduction was conducted after that and several statistic models were developed evaluating total travel time, travel delay of these two movements and the ratio of drivers choice of RTUT versus DLT. As the conclusion, the study found that RTUT followed by U-turn at signalized intersection has longer delay and longer travel time as compared to DLT and the existence of long cycle downstream signal will discourage driver's selection of RTUT. There conclusions are very important in that they provided decision makers with useful information regarding the selection of the suitable U-turn location.
Operational Evaluation of Right Turns Followed by U-turns (4 Lane Arterials) as an Alternative to Direct Left Turns
Author: Jian John LuPublisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 244
Book Description
Safety Evaluation of Right Turns Followed by U-turns as an Alternative to Direct Left Turns: Operational evaluation of right turns followed by U-turns as an alternative to direct left turns
Author: Operational Evaluation of Right Turns Followed by U-turns as an Alternative to Direct Left Turns: (volume III of Three Reports Based on the Project "methodology to Quantify the Effects of Access Management on Roadway Operations and Safety").
Author: J. LuSafety Evaluation of Right Turns Followed by U-turns (4 Lanes Arterials) as an Alternative to Direct Left Turns
Author: Jian John LuPublisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 260
Book Description
Operational Evaluation of Right Turns Followed by U-turns as an Alternative to Direct Left Turns
Author: John LuSafety Evaluation of Right Turns Followed by U-turns as an Alternative to Direct Left Turns: Crash data analysis
Author: Jian John LuPublisher:
ISBN:
Category : Left-turn lanes
Languages : en
Pages : 158
Book Description
Determination of the Offset Distance Between Driveway Exits and Downstream U-turn Locations for Vehicles Making Right Turns Followed by U-turns
Author: Jian John LuPublisher:
ISBN:
Category : Driveways
Languages : en
Pages : 194
Book Description
Florida 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.