Evaluation of displaced left-turn intersections
نویسندگان
چکیده
منابع مشابه
Evaluation of Crossover Displaced Left-turn (XDL) Intersections and Real-time Signal Control Strategies with Artificial Intelligence Techniques
Although concepts of the XDL intersection or CFI (Continuous Flow Intersection) have been around for approximately four decades, users do not yet have a simplified procedure to evaluate its traffic performance and compare it with a conventional intersection. Several studies have shown qualitative and quantitative benefits of the XDL intersection without providing accessible tools for traffic en...
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At some intersections, excessive queue lengths may spill out of the left-turn bay and block the through lanes, jeopardizing level of service for the entire intersection. One of the most effective plans recently presented by the researchers is the "Contraflow left-turn lane" (CLL) In this method, left-turn vehicles will use the nearest lane in the opposite direction in addition to the usual left...
متن کاملIncreasing the Capacity of Signalized Intersections with Separate Left Turn
Separate turn phases are often used on the approach legs to intersections with heavy left turns. This wastes capacity on the approach because some of its lanes cannot discharge during its green phases. The paper shows that the problem can be eliminated by reorganizing traffic on all the lanes upstream of an intersection using a mid-block pre-signal. If drivers behave deterministically, the capa...
متن کاملOperational Performance Comparison between Three Unconventional Intersection Designs: Left-turn Bypass, Diverging Flow and Displaced Left-turn
The intense exponential growth of the population in the United States and added vehicles to the roads has transportation planners working on solving the congestion issue. People have to travel longer distances and spend more time on the roads causing congestion of the current networks. Thus, the demand for new roadway and intersection design is a high priority, as wasted fuel and travel time in...
متن کاملSafety Effects of Protected Left-Turn Phasing at Signalized Intersections: An Empirical Analysis
Left-turn crashes occur frequently at signalized intersections and often lead to severe injuries. This problem can be addressed through the implementation of protected left-turn signals. This gives left-turning vehicles the right to enter the intersection free from conflict with opposing drivers and pedestrians. The present study analyses the effect of this measure on crash occurrence. The stud...
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ژورنال
عنوان ژورنال: Transportation Engineering
سال: 2020
ISSN: 2666-691X
DOI: 10.1016/j.treng.2020.100006