Real Time Estimation of Arterial Travel Time and Operational Measures Through Integration of Real Time Fixed Sensor Data and Simulation PDF Download
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Author: Michael P. Hunter
Publisher:
ISBN:
Category : Traffic estimation
Languages : en
Pages : 170
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Book Description
Author: Michael P. Hunter
Publisher:
ISBN:
Category : Traffic estimation
Languages : en
Pages : 170
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Book Description
Author: J. David Porter
Publisher:
ISBN:
Category : Traffic engineering
Languages : en
Pages : 0
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Book Description
Author: Peng Hao
Publisher:
ISBN:
Category :
Languages : en
Pages : 360
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Book Description
Author: J. David Porter
Publisher:
ISBN:
Category : Automatic data collection systems
Languages : en
Pages : 74
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Book Description
Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 1904
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Book Description
Author: Devin Barnett McCombie
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
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Book Description
(Cont.) Additionally, by co-locating the two sensors on the same appendage not only are we able to account for the effect of hydrostatic pressure variation in our pulse transit time (PTT) measurements using an imbedded height sensor, but by actively altering the height of the two sensors relative to the heart we can achieve real-time identification of the calibration equation mapping PTT to MAP. Such real-time calibration of PTT measurements obviates the need for obtrusive cuff-based blood pressure monitors and offers the potential to recursively update the calibration equation as the patient's cardiovascular state evolves throughout the duration of the measurement period. Adaptive PTT calibration through natural patient motion has never previously been explored and offers the potential to achieve the longstanding goal of a truly imperceptible, wearable home BP monitor. This thesis describes the design and development of the sensor hardware used in the wearable device. Based on both theoretical study and experimental observations a device model has been developed to allow estimation of mean arterial blood pressure using the pulse transit times measured with our sensors. Additionally, this thesis presents the adaptive calibration methodology and the novel system identification algorithms that were used to parameterize our device model using natural human motion. Finally, this thesis demonstrates the potential of these innovative concepts through human subject testing and data analysis.
Author: Terrel Shaw
Publisher: Transportation Research Board
ISBN: 030906953X
Category : Roads
Languages : en
Pages : 66
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Book Description
The Transportation Research Board's National Cooperative Highway Research Program (NCHRP) Synthesis 311: Performance Measures of Operational Effectiveness for Highway Segments and Systems examines the use of performance measures for the monitoring and operational management of highway segments and systems.
Author:
Publisher:
ISBN:
Category : Adaptive control systems
Languages : en
Pages : 94
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Book Description
Author: David Schrank
Publisher: DIANE Publishing
ISBN: 1437905609
Category : Transportation
Languages : en
Pages : 24
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Book Description
Congestion continues to grow in America¿s urban areas. This report presents details on the 2004 trends, findings and what can be done to address the growing transportation problems. Trend data from 1982 to 2002 for 85 urban areas provides both a local view and a national perspective on the growth and extent of traffic congestion. The 2004 Report provides clear evidence that the time for improvements has arrived. Communicating the congestion levels and the need for improvements is a goal of this report. The decisions about which, and how much, improvement to fund will be made at the local level according to a variety of goals, but there are some broad conclusions that can be drawn from this database. Tables.
Author: U.s. Department of Transportation
Publisher: CreateSpace
ISBN: 9781508557173
Category : Transportation
Languages : en
Pages : 286
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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.
