An Analysis Of Speed Vs Density For Determining Congestion And Delay
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An Analysis Of Speed Vs Density For Determining Congestion And Delay
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Author : Malcolm P. McDowell
language : en
Publisher:
Release Date : 1969
An Analysis Of Speed Vs Density For Determining Congestion And Delay written by Malcolm P. McDowell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Traffic congestion categories.
A preliminary study of speed and density relationships has been made by the Freeway Operations Section of the District 04 Traffic Department. A comparison was made in this study of the relative merits of using two different methods for determining freeway densities: 1) floating car method, or 2) aerial photographic method. Portions of this study, included in part I of the Appendix, indicate that considerable savings in time and money can be achieved by using the floating car method to determine freeway speeds and a speed/density relationship to determine freeway densities. From these derived densities, it is possible to study freeway congestion and delay. The floating car method has the added advantages in District 04 that it can be used in all types of weather.
Understanding Traffic Systems
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Author : Michael A.P. Taylor
language : en
Publisher: Routledge
Release Date : 2017-03-02
Understanding Traffic Systems written by Michael A.P. Taylor and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-03-02 with Technology & Engineering categories.
Road traffic and its impacts affect all aspects of modern life, leisure and industry, with safety, congestion and pollution being of greatest public concern. Transport planning increasingly emphasises travel demand management (TDM) and traffic calming - aided by dynamic, lower cost data from Intelligent Transport Systems (ITS) - to enable real time monitoring, control and traveller information. This second edition of a highly successful work has been fully updated since its first publication in 1996 to reflect developments in technology available to the traffic analyst and in the social, ecological and economic environment. New sections are included on shockwaves, data capture without surveys, traffic incidents, delay estimation, off-line use of on-line data, environmental sensitivity, and controlled crash tests. The authors introduce and demonstrate techniques with which the analyst, engineer or planner can examine traffic problems. The underlying theme is that proper understanding of traffic systems performance and traffic problems can only come from the intelligent processing, refinement, appraisal and evaluation of traffic data. Arranged in five parts, the book offers an integrated approach to tackling road traffic problems: ¢ How to gain information and understanding about traffic ¢ The theories of traffic flow ¢ The principles of good survey planning and management ¢ Specific types of traffic studies ¢ Analytical techniques for transforming raw data into useful information. Understanding Traffic Systems provides cogent insights into the techniques of traffic data collection and analysis, the application of traffic theory and the role of data in analysis and decision making. Its breadth and use of examples from several countries make it a useful reference text for students and researchers, as well as an essential tool for practising traffic engineers and planners.
Traffic Congestion
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Author : Alberto Bull
language : en
Publisher: Santiago, Chile : United Nations, Economic Commission for Latin America and the Caribbean
Release Date : 2003
Traffic Congestion written by Alberto Bull and has been published by Santiago, Chile : United Nations, Economic Commission for Latin America and the Caribbean this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Technology & Engineering categories.
Traffic Flow Theory And Control
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Author : Donald R. Drew
language : en
Publisher:
Release Date : 1968
Traffic Flow Theory And Control written by Donald R. Drew and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Technology & Engineering categories.
Traffic System Analysis For Engineers And Planners
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Author : Martin Wohl
language : en
Publisher:
Release Date : 1967
Traffic System Analysis For Engineers And Planners written by Martin Wohl and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Technology & Engineering categories.
Quantifying Congestion Final Report
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Author : Timothy J. Lomax
language : en
Publisher: Transportation Research Board
Release Date : 1997
Quantifying Congestion Final Report written by Timothy J. Lomax 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 Transportation categories.
Measuring Recurrent And Non Recurrent Traffic Congestion
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Author : Alexander Skabardonis
language : en
Publisher:
Release Date : 2002
Measuring Recurrent And Non Recurrent Traffic Congestion written by Alexander Skabardonis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Traffic congestion categories.
The paper describes a methodology and its application to measure total, recurrent, and non-recurrent (incident related) delay on urban freeways. The methodology uses data from loop detectors and calculates the average and the probability distribution of delays. Application of the methodology to two real-life freeway corridorsone in Los Angeles and the other in the Bay Areaindicates that reliable measurement of congestion should also provide measures of uncertainty in congestion. In the two applications, incident-related delay is found to be between 13 to 30 percent of the total congestion delay during peak periods. The methodology also quantifies the congestion impacts on travel time and travel time variability.
An Analysis Of Real Time Contorl Measures For Calculating Urban Freeway Operation
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Author :
language : en
Publisher:
Release Date : 1972
An Analysis Of Real Time Contorl Measures For Calculating Urban Freeway Operation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.
Examining The Speed Flow Delay Paradox In The Washington Dc Region
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Author :
language : en
Publisher:
Release Date : 2008
Examining The Speed Flow Delay Paradox In The Washington Dc Region written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Highway capacity categories.
"Traffic congestion in the Washington, DC area, especially congestion on our freeways, costs our residents every day in terms of wasted time, fuel, and increased air pollution. Highway studies have determined that once traffic volumes exceed the capacity of the roadway, the system can rapidly "break down" to the point where all traffic slows markedly, and the capacity and throughput of the roadway drops precipitously. The Federal Highway Administration commissioned this study to specifically evaluate speed, volume and delay for congested versus uncongested travel on some of the major roadways in the metropolitan Washington region, in order to identify the specific "tipping point(s)" at which free-flow traffic "breaks down", and conversely, the volume of traffic that would have to be reduced in peak periods to keep traffic free-flowing. The study also analyzed survey data to estimate the number and percent of trips that people take in peak hours on our freeways that are discretionary trips. Finally, the study briefly reviewed empirical findings on experiences with congestion pricing in the US and abroad"--Technical report documentation page.
Managing Urban Traffic Congestion
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Author : European Conference of Ministers of Transport
language : en
Publisher: OECD Publishing
Release Date : 2007-05-31
Managing Urban Traffic Congestion written by European Conference of Ministers of Transport and has been published by OECD Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-05-31 with categories.
Offers policy-oriented, research-based recommendations for effectively managing traffic and cutting excess congestion in large urban areas.