Improved Dynamic Message Sign Messages And Operations

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Improved Dynamic Message Sign Messages And Operations

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Author : Conrad L. Dudek
language : en
Publisher:
Release Date : 2000

Improved Dynamic Message Sign Messages And Operations written by Conrad L. Dudek and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Highway communications categories.

Evaluating Alternative Operations Strategies To Improve Travel Time Reliability

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Author : National Academies of Sciences, Engineering, and Medicine (U.S.)
language : en
Publisher: Transportation Research Board
Release Date : 2022-03-29

Evaluating Alternative Operations Strategies To Improve Travel Time Reliability written by National Academies of Sciences, Engineering, and Medicine (U.S.) 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 2022-03-29 with Business & Economics categories.

This report from the second Strategic Highway Research Program (SHRP 2), which is administered by the Transportation Research Board of the National Academies, sets out requirements for travel time reliability within a performance-based planning process. The research includes an effort to determine the economic value of improvements in travel time reliability by applying options theory from the financial sector. The report includes two succinct tables that describe requirements for person and freight trips for reliable transport, as well as a forecast of the year 2030 under alternative assumptions that may influence travel time reliability.

Advanced Notification Messages And Use Of Sequential Portable Changeable Message Signs In Work Zones

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Author :
language : en
Publisher:
Release Date : 2005

Advanced Notification Messages And Use Of Sequential Portable Changeable Message Signs In Work Zones 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 Traffic signs and signals categories.

In this report, researchers document the results of a laptop-based human factors study of alternative formats of presenting advance notice work zone information on portable changeable message signs (PCMSs) and a Texas Transportation Institute (TII) driving simulator study of the ability of motorists to capture and process information on two PCMSs used in sequence to convey information about upcoming traffic situations. Based on the studies, researchers recommend that messages that require the display of calendar dates for future roadwork and other traffic control activities should utilize a message format consisting of the three-character abbreviation of the month (e.g., APR for April) in conjunction with the date. When future work activities span several days all in the same month, the month needs be noted only once in the message (i.e., APR 21-23) rather than repeating the month (i.e., APR 21-APR 23). The ITI driver simulator study results indicate the need to keep overall messages at or below the four-unit maximum recommended in existing guidelines. Researchers found that presenting five units of information on sequential PCMSs resulted in low comprehension rates, below what would be acceptable for highway applications. However, by keeping the message length to four units, it does appear that the use of sequential PCMSs will result in comprehension rates comparable to those obtained by presenting the same information at a single location on a large dynamic message sign (DMS), and is recommended as an acceptable formatting approach for TxDOT. Comprehension may be enhanced by repeating one of the units of information on both PCMSs.

Human Factors Opportunities To Improve Ohio S Transportation System

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Author :
language : en
Publisher:
Release Date : 2005

Human Factors Opportunities To Improve Ohio S Transportation System 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 Transportation categories.

Departments Of Transportation And Treasury And Independent Agencies Appropriations For 2005

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Author : United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Transportation and Treasury, and Independent Agencies Appropriations
language : en
Publisher:
Release Date : 2004

Departments Of Transportation And Treasury And Independent Agencies Appropriations For 2005 written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Transportation and Treasury, and Independent Agencies Appropriations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with United States categories.

Changeable Message Sign Displays During Non Incident Non Roadwork Periods

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Author : Conrad L. Dudek
language : en
Publisher: Transportation Research Board
Release Date : 2008

Changeable Message Sign Displays During Non Incident Non Roadwork Periods written by Conrad L. Dudek 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 2008 with Technology & Engineering categories.

Development Of A Field Guide For Portable Changeable Message Sign Use In Work Zones

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Author : Gerald L. Ullman
language : en
Publisher:
Release Date : 2005

Development Of A Field Guide For Portable Changeable Message Sign Use In Work Zones written by Gerald L. Ullman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Road work zones categories.

In this report, researchers document the development of a field guide for portable changeable message sign use in work zones. Included in the report is a summary and critique of available national and state-level standards and guidance on portable changeable message sign (PCMS) use, description of the components included in the field guide, and implementation considerations for field guide deployment. The field guide was developed as a stand-alone product, but is included for illustrative purposes as an appendix to this report.

Guidebook For Implementing Intelligent Transportation Systems Elements To Improve Airport Traveler Access Information

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Author : Robert Marshall Elizer
language : en
Publisher: Transportation Research Board
Release Date : 2012

Guidebook For Implementing Intelligent Transportation Systems Elements To Improve Airport Traveler Access Information written by Robert Marshall Elizer 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 Transportation categories.

TRB's Airport Cooperative Research Program (ACRP) Report 70: Guidebook for Implementing Intelligent Transportation Systems Elements to Improve Airport Traveler Access Information provides descriptions, component details, and examples of how airport ground access information can be disseminated using various intelligent transportation systems (ITS) technologies. The guidebook contains tables to help airport operators determine the applicability of certain ITS strategies based on airport operational needs and airport size. The printed version of the report includes an interactive CD-ROM designed to help explore and evaluate the information needs of various airport traveler market segments and to identify ITS technologies that best meet the needs of the airport user. The CD-ROM also contains a decision support tool that allows users to identify appropriate methods of delivering airport traveler information based on the airport traveler market segment.

Departments Of Transportation And Treasury And Independent Agencies Appropriations For 2005 Statements Of Members Of Congress And Other Interested Individuals And Organizations

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Author : United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Transportation and Treasury, and Independent Agencies Appropriations
language : en
Publisher:
Release Date : 2004

Departments Of Transportation And Treasury And Independent Agencies Appropriations For 2005 Statements Of Members Of Congress And Other Interested Individuals And Organizations written by United States. Congress. House. Committee on Appropriations. Subcommittee on the Departments of Transportation and Treasury, and Independent Agencies Appropriations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with United States categories.

Guidelines For The Evaluation Of Dynamic Message Sign Performance

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Author :
language : en
Publisher:
Release Date : 2007

Guidelines For The Evaluation Of Dynamic Message Sign Performance written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Highway communications categories.

The objective of this research project was to determine appropriate guidelines and methodology for evaluating dynamic message sign (DMS) performance. National literature reviews and agency surveys were conducted and synthesized for a critical assessment of the state-of-the practice in DMS performance evaluation. DMS performance metrics were established based upon data availability, time of evaluation (pre-post)), and environment of application (urban/rural). Both qualitative and quantitative DMS benefits were established with examples of associated analysis tools given and discussed. Case studies were conducted along freeway corridors where DMSs had been implemented in both urban (Houston, Texas) and rural (Amarillo, Texas) environments. The results of these case studies highlighted constraints in both data availability and appropriate analysis procedures. Final guidelines and methodology for DMS performance evaluation were produced emphasizing the limitation to assessment of both qualitative and quantitative benefits. A guidebook of DMS performance evaluation procedures was included as Appendix D in the research report.