Impact Of Lane Drops On Intersection Capacity
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Impact Of Lane Drops On Intersection Capacity
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Author :
language : en
Publisher:
Release Date : 2004
Impact Of Lane Drops On Intersection Capacity written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Lane drops downstream of signalized intersections are found on many urban and suburban streets and highways. The short lane is typically under-utilized at the intersection since drivers avoid using the short lane due to the potential for stressful merges downstream of the signal. This unconventional geometric configuration downstream of the lane drop intersection affects intersection capacity and operations. The current Highway Capacity Manual (HCM) does not take into account downstream lane drop conditions, thereby resulting in significant discrepancy between the HCM defaults and field observed lane utilization factors (LUF). The primary objectives of this research were to identify whether and by how much lane drops affect performance of actuated signalized intersections under various traffic demand levels and lane drop geometries. The research developed LUF prediction models by intersection type from data on traffic, signal and intersection geometry collected in the field. The developed models imply that the downstream lane length and traffic intensity are positively correlated with the LUF and that other geometric variables at the approach may also influence lane utilization. Also, a traffic simulation model was used to quantify the impact of lane drops on intersection operations with various traffic volumes and geometric conditions. Through the simulation, it was found that additional green time, which should reduce delay, was created because of the overloaded full lane at the approach, however; a higher probability of green time termination with maximum green time dominates the benefit of extra green and the approach gains significant extra delays. Based on the data obtained from the simulation, this research quantified the amount of additional delay for the subject movement and established delay adjustment factors due to account for lane drop effects. Findings from this research are expected to contribute to the assessment of lane drop intersection performance.
Impact Of Lane Drops On Intersection Capacity
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Author : Jae-Joon Lee
language : en
Publisher:
Release Date : 2005
Impact Of Lane Drops On Intersection Capacity written by Jae-Joon Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
Keywords: intersection capcity, lane drop.
False Capacity For Lane Drops
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Author : Jae Joon Lee
language : en
Publisher:
Release Date : 2005
False Capacity For Lane Drops written by Jae Joon Lee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Highway capacity categories.
Geometric Design And The Effects On Traffic Operations 2005
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Author :
language : en
Publisher:
Release Date : 2005
Geometric Design And The Effects On Traffic Operations 2005 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Highway engineering categories.
Capacity And Operational Effects Of Midblock Left Turn Lanes
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Author : James A. Bonneson
language : en
Publisher: Transportation Research Board
Release Date : 1997
Capacity And Operational Effects Of Midblock Left Turn Lanes written by James A. Bonneson and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Technology & Engineering categories.
The objective of this research project was to develop a methodology for evaluating alternative midblock left-turn treatments on urban and suburban arterials. The methodology had to be applicable to three common midblock left-turn treatments: the raised-curb median, the flush median with two-way left-turn lane (TWLTL) delineation, and the undivided cross section. The methodology developed for this research focuses on the evaluation of midblock street segments on urban and suburban arterials. The basis for NCHRP Report 395.
Recent Roadway Geometric Design Research For Improved Safety And Operations
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Author : Marcus Brewer
language : en
Publisher: Transportation Research Board
Release Date : 2012
Recent Roadway Geometric Design Research For Improved Safety And Operations written by Marcus Brewer and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Technology & Engineering categories.
RB’s National Cooperative Highway Research Program (NCHRP) Synthesis 432: Recent Roadway Geometric Design Research for Improved Safety and Operations reviews and summarizes roadway geometric design literature completed and published from 2001 through early 2011, particularly research that identified impacts on safety and operations.
Automated Highway Systems
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Author : Petros Ioannou
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Automated Highway Systems written by Petros Ioannou and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Technology & Engineering categories.
Experts address some of the main issues and uncertainties associated with the design and deployment of Automated Highway Systems (AHS). They discuss new AHS concepts, technology, and benefits, as well as institutional, environmental, and social issues - concerns that will affect dramatically the operation of the current highway system from both the vehicle and infrastructure points of view.
The Effect Of Lane Lines On Capacity Of Approaches To Signalized Intersections
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Author : Juan F. Vives Meléndez
language : en
Publisher:
Release Date : 1955
The Effect Of Lane Lines On Capacity Of Approaches To Signalized Intersections written by Juan F. Vives Meléndez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with Highway capacity categories.
An Investigation Of The Effect Of A Parked Vehicle On Traffic Capacity Of Intersections
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Author : Richard M. Bartle
language : en
Publisher:
Release Date : 1954
An Investigation Of The Effect Of A Parked Vehicle On Traffic Capacity Of Intersections written by Richard M. Bartle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1954 with Roads categories.
The Effect Of Lane Markings On Capacity At A Signalized Intersection
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Author : A. George Basmadjian
language : en
Publisher:
Release Date : 1960
The Effect Of Lane Markings On Capacity At A Signalized Intersection written by A. George Basmadjian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1960 with categories.