Author: Kevin N. Balke
Publisher:
ISBN:
Category : Ramp-freeway junctions
Languages : en
Pages : 69
Book Description
"The following information is a product of TxDOT research project 0-5294 Warrants for installing and operating ramp metering. It provides guidelines for installing, operating, and maintaining ramp control signals on TxDOT roadways. These guidelines were written with the intent of becoming a new chapter in TxDOT's Traffic Signals Manual."--Introduction.
Operating Guidelines for Texas DOT Ramp Control Signals
Author: Kevin N. Balke
Publisher:
ISBN:
Category : Ramp-freeway junctions
Languages : en
Pages : 69
Book Description
"The following information is a product of TxDOT research project 0-5294 Warrants for installing and operating ramp metering. It provides guidelines for installing, operating, and maintaining ramp control signals on TxDOT roadways. These guidelines were written with the intent of becoming a new chapter in TxDOT's Traffic Signals Manual."--Introduction.
Publisher:
ISBN:
Category : Ramp-freeway junctions
Languages : en
Pages : 69
Book Description
"The following information is a product of TxDOT research project 0-5294 Warrants for installing and operating ramp metering. It provides guidelines for installing, operating, and maintaining ramp control signals on TxDOT roadways. These guidelines were written with the intent of becoming a new chapter in TxDOT's Traffic Signals Manual."--Introduction.
Development of Criteria and Guidelines for Installing, Operating, and Removing TxDOT Ramp Control Signals
Author:
Publisher:
ISBN:
Category : Ramp-freeway junctions
Languages : en
Pages : 180
Book Description
The Texas Department of Transportation (TxDOT) uses ramp control signals (also called ramp meters or flow signals) to control the rate at which vehicles enter the freeway. This helps TxDOT (1) promote a more consistent and uniform flow of traffic entering the freeway, and (2) promote a more efficient use of the existing freeway capacity. The purpose of this project was to develop guidelines and criteria to assist TxDOT decision makers in determining when and where to install new ramp control signals and remove existing ramp control signals when they no longer provide a benefit to freeway traffic. This report documents the process, procedures, and research used to develop those guidelines and criteria. The actual guidelines, criteria, and forms are in Product 0-5294-P1, 'Operating Guidelines for TxDOT Ramp Control Signals.'
Publisher:
ISBN:
Category : Ramp-freeway junctions
Languages : en
Pages : 180
Book Description
The Texas Department of Transportation (TxDOT) uses ramp control signals (also called ramp meters or flow signals) to control the rate at which vehicles enter the freeway. This helps TxDOT (1) promote a more consistent and uniform flow of traffic entering the freeway, and (2) promote a more efficient use of the existing freeway capacity. The purpose of this project was to develop guidelines and criteria to assist TxDOT decision makers in determining when and where to install new ramp control signals and remove existing ramp control signals when they no longer provide a benefit to freeway traffic. This report documents the process, procedures, and research used to develop those guidelines and criteria. The actual guidelines, criteria, and forms are in Product 0-5294-P1, 'Operating Guidelines for TxDOT Ramp Control Signals.'
Development of a Traffic Signal Operations Handbook
Author: James Bonneson
Publisher:
ISBN:
Category : Signalized intersections
Languages : en
Pages : 92
Book Description
The Texas Department of Transportation (TxDOT) operates thousands of traffic signals, both in rural areas and small cities. TxDOT's operation of these signals has served the state well over the years. However, regional differences in signal timing and detection design practice have evolved. These differences create operational inconsistencies and, possibly, sub-optimal performance. Good signal timing practices developed in some areas are not well documented or otherwise communicated to other areas. A comprehensive signal timing resource guide is needed to promote uniform, effective signal operation on a statewide basis. This document summarizes the research conducted and the conclusions reached during the development of a Traffic Signal Operations Handbook. The handbook provides guidelines for timing traffic control signals at intersections that operate in isolation or as part of a coordinated signal system. The research conducted included a review of the literature, a survey of TxDOT engineers, an evaluation of alternative signal controller settings and detection designs. A spreadsheet was developed to accompany the Handbook. This spreadsheet automates several tasks involved in the development of a signal timing plan and is intended to facilitate implementation of the Handbook guidance.
Publisher:
ISBN:
Category : Signalized intersections
Languages : en
Pages : 92
Book Description
The Texas Department of Transportation (TxDOT) operates thousands of traffic signals, both in rural areas and small cities. TxDOT's operation of these signals has served the state well over the years. However, regional differences in signal timing and detection design practice have evolved. These differences create operational inconsistencies and, possibly, sub-optimal performance. Good signal timing practices developed in some areas are not well documented or otherwise communicated to other areas. A comprehensive signal timing resource guide is needed to promote uniform, effective signal operation on a statewide basis. This document summarizes the research conducted and the conclusions reached during the development of a Traffic Signal Operations Handbook. The handbook provides guidelines for timing traffic control signals at intersections that operate in isolation or as part of a coordinated signal system. The research conducted included a review of the literature, a survey of TxDOT engineers, an evaluation of alternative signal controller settings and detection designs. A spreadsheet was developed to accompany the Handbook. This spreadsheet automates several tasks involved in the development of a signal timing plan and is intended to facilitate implementation of the Handbook guidance.
Traffic Control Systems Handbook
Author:
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 670
Book Description
This handbook, which was developed in recognition of the need for the compilation and dissemination of information on advanced traffic control systems, presents the basic principles for the planning, design, and implementation of such systems for urban streets and freeways. The presentation concept and organization of this handbook is developed from the viewpoint of systems engineering. Traffic control studies are described, and traffic control and surveillance concepts are reviewed. Hardware components are outlined, and computer concepts, and communication concepts are stated. Local and central controllers are described, as well as display, television and driver information systems. Available systems technology and candidate system definition, evaluation and implementation are also covered. The management of traffic control systems is discussed.
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 670
Book Description
This handbook, which was developed in recognition of the need for the compilation and dissemination of information on advanced traffic control systems, presents the basic principles for the planning, design, and implementation of such systems for urban streets and freeways. The presentation concept and organization of this handbook is developed from the viewpoint of systems engineering. Traffic control studies are described, and traffic control and surveillance concepts are reviewed. Hardware components are outlined, and computer concepts, and communication concepts are stated. Local and central controllers are described, as well as display, television and driver information systems. Available systems technology and candidate system definition, evaluation and implementation are also covered. The management of traffic control systems is discussed.
Design and Operations Criteria for Ramp Metering
Author: Nadeem A. Chaudhary
Publisher:
ISBN:
Category : Express highways
Languages : en
Pages :
Book Description
Publisher:
ISBN:
Category : Express highways
Languages : en
Pages :
Book Description
Guidelines for Funding Operations and Maintenance of ITS/ATMS
Author: Ginger Daniels Goodin
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 104
Book Description
This report provides a policy-level review of the costs and funding issues associated with Intelligent Transportation Systems/Advanced Traffic Management Systems (ITS/ATMS) operations and maintenance (O & M). Through this research project, a practical methodology has been developed for estimating annual O & M expenses and allocating operating funds. The report includes estimated O & M costs for over 60 ITS elements. Also reviewed in this report are a number of issues related to departmental policies, procedures, and practices that affect the ability to adequately and consistently fund ITS/ATMS operations and maintenance. These include the source and availability of funds, the budgeting process, the impact of legislative mandates, the increased use of outsourcing, the development of public and private partnerships, and the implications of system design and replacement on O & M costs.
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 104
Book Description
This report provides a policy-level review of the costs and funding issues associated with Intelligent Transportation Systems/Advanced Traffic Management Systems (ITS/ATMS) operations and maintenance (O & M). Through this research project, a practical methodology has been developed for estimating annual O & M expenses and allocating operating funds. The report includes estimated O & M costs for over 60 ITS elements. Also reviewed in this report are a number of issues related to departmental policies, procedures, and practices that affect the ability to adequately and consistently fund ITS/ATMS operations and maintenance. These include the source and availability of funds, the budgeting process, the impact of legislative mandates, the increased use of outsourcing, the development of public and private partnerships, and the implications of system design and replacement on O & M costs.
Traffic Signal Operations Handbook
Author: James A. Bonneson
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 180
Book Description
This handbook provides guidelines for timing traffic control signals at intersections that operate in isolation or as part of a coordinated signal system. The guidelines are intended to describe best practices, as identified through interviews with engineers and technicians, and to identify conditions where alternative practices are equally workable. The handbook is intended to make resource investment in signal timing maintenance costeffective and signal operation more consistent on an area-wide basis. It is likely to be most useful to engineers that desire quick-response methods for maintaining or improving the operation of existing signalized intersections. The second edition of the handbook includes new material focused on pedestrian safety at signalized intersections. One element of the new material is presented as guidelines for determining whether protected left-turn operation is appropriate based on consideration of pedestrian-vehicle crashes and vehicle delay. A second element is presented as guidelines for determining whether an exclusive pedestrian phase is needed. A third element is presented as a new appendix that describes alternative pedestrian treatments that can improve pedestrian safety at signalized intersections.
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 180
Book Description
This handbook provides guidelines for timing traffic control signals at intersections that operate in isolation or as part of a coordinated signal system. The guidelines are intended to describe best practices, as identified through interviews with engineers and technicians, and to identify conditions where alternative practices are equally workable. The handbook is intended to make resource investment in signal timing maintenance costeffective and signal operation more consistent on an area-wide basis. It is likely to be most useful to engineers that desire quick-response methods for maintaining or improving the operation of existing signalized intersections. The second edition of the handbook includes new material focused on pedestrian safety at signalized intersections. One element of the new material is presented as guidelines for determining whether protected left-turn operation is appropriate based on consideration of pedestrian-vehicle crashes and vehicle delay. A second element is presented as guidelines for determining whether an exclusive pedestrian phase is needed. A third element is presented as a new appendix that describes alternative pedestrian treatments that can improve pedestrian safety at signalized intersections.
Traffic Signal Timing Manual
Author: U.s. Department of Transportation
Publisher: CreateSpace
ISBN: 9781508557173
Category : Transportation
Languages : en
Pages : 286
Book Description
This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.
Publisher: CreateSpace
ISBN: 9781508557173
Category : Transportation
Languages : en
Pages : 286
Book Description
This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.
Advanced Freeway System Ramp Metering Strategies for Texas
Author: Carroll J. Messer
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 114
Book Description
Freeway ramp metering systems have been used to improve urban freeway flow. However, control strategies must be properly adjusted to account for ramp queues overflowing onto surface streets and provide equitable on-ramp control during various operating periods. An improved solution can be obtained by optimizing this problem simultaneously for a group of time slices. This study identifies and examines a microcomputer-based optimization scheme that can assist in developing efficient freeway control strategies for on-line freeway surveillance and control. A multi-level freeway control structure is employed for which ramp metering control algorithms are developed for each level of control. Flow-based and lane occupancy-based system algorithms are presented. Detailed data file requirements are provided for each control level. A microcomputer prototype, or laboratory test version of the system level, will be described in a companion project report.
Publisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 114
Book Description
Freeway ramp metering systems have been used to improve urban freeway flow. However, control strategies must be properly adjusted to account for ramp queues overflowing onto surface streets and provide equitable on-ramp control during various operating periods. An improved solution can be obtained by optimizing this problem simultaneously for a group of time slices. This study identifies and examines a microcomputer-based optimization scheme that can assist in developing efficient freeway control strategies for on-line freeway surveillance and control. A multi-level freeway control structure is employed for which ramp metering control algorithms are developed for each level of control. Flow-based and lane occupancy-based system algorithms are presented. Detailed data file requirements are provided for each control level. A microcomputer prototype, or laboratory test version of the system level, will be described in a companion project report.
Freeway Ramp Control System
Author: William R. McCasland
Publisher:
ISBN:
Category : Express highways
Languages : en
Pages : 74
Book Description
Publisher:
ISBN:
Category : Express highways
Languages : en
Pages : 74
Book Description