Policies For Use Of Changeable Message Signs In Highway Work Zones
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Policies For Use Of Changeable Message Signs In Highway Work Zones
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Author : Siim Soot
language : en
Publisher:
Release Date : 1999
Policies For Use Of Changeable Message Signs In Highway Work Zones written by Siim Soot and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Electronic traffic controls categories.
Portable Changeable Message Sign (PCMS) systems used in work zones are programmable supplementary traffic control devices that display messages composed of letters, symbols or both and provide information and instructions to the traveling public approaching work zone activities. The study seeks to develop warrants and criteria for PCMS deployment in Illinois highway work zones. It is recommended that PCMS systems be used during long- and intermediate-term stationary work, for traffic control through incident areas, and in projects where advance-time notification is needed. The discussion focuses on spacing criteria, number of signs required, sign visibility and message legibility, text alignment, distance criteria, message length, duration and type, project-level operational guidelines, message storage and dissemination, repair, maintenance and utility costs, as well as control and coordination issues. The study concludes that additional research is needed in order to: develop a comprehensive standardized statewide database of messages and message abbreviations; develop a comprehensive repository with information about the technology of the various components of the PCMS units; coordinate PCMS units used in highway work zones with a corridor or regional ATMS system; and maintain information about the use of a PCMS unit in a work zone project and possibly integrate it with other relevant information in a management system.
Human Factors Guidelines For Road Systems
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Author : John L. Campbell
language : en
Publisher: Transportation Research Board
Release Date : 2012
Human Factors Guidelines For Road Systems written by John L. Campbell 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.
"This report completes and updates the first edition of NCHRP Report 600: Human Factors Guidelines for Road Systems (HFG), which was published previously in three collections. The HFG contains guidelines that provide human factors principles and findings for consideration by, and is a resource document for, highway designers, traffic engineers, and other safety practitioners."--Foreword.
Roadside Design Guide
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Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
language : en
Publisher:
Release Date : 1989
Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Roads categories.
Guidance For Implementation Of The Aashto Strategic Highway Safety Plan
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Author : Nicholas D. Antonucci
language : en
Publisher: Transportation Research Board
Release Date : 2005
Guidance For Implementation Of The Aashto Strategic Highway Safety Plan written by Nicholas D. Antonucci 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 2005 with Technology & Engineering categories.
Effective Highway Accident Countermeasures Status Report
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Author :
language : en
Publisher:
Release Date : 1993
Effective Highway Accident Countermeasures Status Report written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
Design Of Construction Work Zones On High Speed Highways
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Author : Kevin M. Mahoney
language : en
Publisher: Transportation Research Board
Release Date : 2007
Design Of Construction Work Zones On High Speed Highways written by Kevin M. Mahoney 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 2007 with Technology & Engineering categories.
Work Zone Operations
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Author :
language : en
Publisher: DIANE Publishing
Release Date : 2000
Work Zone Operations written by and has been published by DIANE Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.
Traffic Congestion Control By Pde Backstepping
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Author : Huan Yu
language : en
Publisher: Springer Nature
Release Date : 2022-12-16
Traffic Congestion Control By Pde Backstepping written by Huan Yu and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-12-16 with Science categories.
This monograph explores the design of controllers that suppress oscillations and instabilities in congested traffic flow using PDE backstepping methods. The first part of the text is concerned with basic backstepping control of freeway traffic using the Aw-Rascle-Zhang (ARZ) second-order PDE model. It begins by illustrating a basic control problem – suppressing traffic with stop-and-go oscillations downstream of ramp metering – before turning to the more challenging case for traffic upstream of ramp metering. The authors demonstrate how to design state observers for the purpose of stabilization using output-feedback control. Experimental traffic data are then used to calibrate the ARZ model and validate the boundary observer design. Because large uncertainties may arise in traffic models, adaptive control and reinforcement learning methods are also explored in detail. Part II then extends the conventional ARZ model utilized until this point in order to address more complex traffic conditions: multi-lane traffic, multi-class traffic, networks of freeway segments, and driver use of routing apps. The final chapters demonstrate the use of the Lighthill-Whitham-Richards (LWR) first-order PDE model to regulate congestion in traffic flows and to optimize flow through a bottleneck. In order to make the text self-contained, an introduction to the PDE backstepping method for systems of coupled first-order hyperbolic PDEs is included. Traffic Congestion Control by PDE Backstepping is ideal for control theorists working on control of systems modeled by PDEs and for traffic engineers and applied scientists working on unsteady traffic flows. It will also be a valuable resource for researchers interested in boundary control of coupled systems of first-order hyperbolic PDEs.
Guidelines For Design And Operation Of Nighttime Traffic Control For Highway Maintenance And Construction
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Author : James E. Bryden
language : en
Publisher: Transportation Research Board
Release Date : 2002
Guidelines For Design And Operation Of Nighttime Traffic Control For Highway Maintenance And Construction written by James E. Bryden 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 2002 with Technology & Engineering categories.
A Policy On Geometric Design Of Highways And Streets 2011
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Author : American Association of State Highway and Transportation Officials
language : en
Publisher: AASHTO
Release Date : 2011
A Policy On Geometric Design Of Highways And Streets 2011 written by American Association of State Highway and Transportation Officials and has been published by AASHTO this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Technology & Engineering categories.