Understanding and Mitigating Capacity Reductions at Freeway Bottlenecks PDF Download
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Author: Koo Hong Chung
Publisher:
ISBN:
Category :
Languages : en
Pages : 128
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Book Description
Author: Koo Hong Chung
Publisher:
ISBN:
Category :
Languages : en
Pages : 128
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Book Description
Author: Koohong Chung
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 68
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Book Description
Author: Jittichai Rudjanakanoknad
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 84
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Book Description
Author:
Publisher: Transportation Research Board
ISBN: 0309129265
Category : Technology & Engineering
Languages : en
Pages : 268
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Book Description
"Reliability of transport, especially the ability to reach a destination within a certain amount of time, is a regular concern of travelers and shippers. The definition of reliability used in this research is how travel time varies over time. The variability can apply to the travel times observed over a road segment during a specific time slice (e.g., 3 to 6 p.m.) over a fairly long period of time, say a year. The variability can also pertain to the travel times of repeated trips made by a person or a truck between a given origin and destination. Agencies are increasingly aware of the issue of reliability, although the transportation industry as a whole as yet lacks a firm understanding of the causes and solutions to failures of reliability. As the agenda for the SHRP 2 research on travel time reliability took shape, it became clear a fundamental study was required to be able to talk about travel time reliability in a meaningful way"--Foreword.
Author:
Publisher:
ISBN:
Category : Roads
Languages : en
Pages : 48
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Author: Lee August Rodegerdts
Publisher: Transportation Research Board
ISBN: 0309155118
Category : Technology & Engineering
Languages : en
Pages : 407
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Book Description
TRB'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.
Author:
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 176
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Book Description
Author: Tom Vanderbilt
Publisher: Vintage Canada
ISBN: 0307373177
Category : Technology & Engineering
Languages : en
Pages : 418
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Book Description
Driving is a fact of life. We are all spending more and more time on the road, and traffic is an issue we face everyday. This book will make you think about it in a whole new light. We have always had a passion for cars and driving. Now Traffic offers us an exceptionally rich understanding of that passion. Vanderbilt explains why traffic jams form, outlines the unintended consequences of our attempts to engineer safety and even identifies the most common mistakes drivers make in parking lots. Based on exhaustive research and interviews with driving experts and traffic officials around the globe, Traffic gets under the hood of the quotidian activity of driving to uncover the surprisingly complex web of physical, psychological and technical factors that explain how traffic works.
Author: Alberto Bull
Publisher: Santiago, Chile : United Nations, Economic Commission for Latin America and the Caribbean
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 202
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Author:
Publisher:
ISBN:
Category : Aggressiveness
Languages : en
Pages : 120
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Book Description
Popular opinion has it that "road rage" is increasingly prevalent and dangerous in the urban driving environment. Whether or not this opinion is true, driver frustration in congested conditions may lead to an increase in aggressive driving, a less intentionally malignant and more common subset of road rage. The potential for significant safety benefits might be realized if transportation professionals had a better understanding of some roadway factors and characteristics of the congested driving environment that induce irritation and perhaps contribute to the frequency of aggressive driving. This report documents the major first-year activities: literature review, focus groups, telephone survey, and development of potential traffic engineering mitigation measures. Researchers studied five focus groups consisting of six to ten individuals and a telephone survey of over 400 Dallas motorists to identify and quantify the pertinent factors increasing driver impatience, irritation, and stress in the congested driving environment. Based upon the survey responses, the research team developed reasonable and feasible traffic engineering mitigation measures (i.e., those factors related to the roadway itself--geometrics, signs and markings, incident clearance activities, etc.) for further evaluation. The following three items were selected for further evaluation: (1) Innovative merge strategies--test concepts such as the late merge and zipping at urban work zones; (2) Bottleneck improvements--evaluate the benefits of adding capacity at freeway bottlenecks for reducing aggressive driving; and (3) Photogrammetric investigation of incidents--assess the ability of photogrammetry to expedite incident clearance. The second year of the project will test these measures, both in a laboratory setting (driving simulator in College Station) and in the real world (field studies on highway facilities in the Dallas area)
