Development Of Freeway Ramp Control Evaluation System

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Development Of Freeway Ramp Control Evaluation System

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Author : Edmond Chin-Ping Chang
language : en
Publisher:
Release Date : 1994

Development Of Freeway Ramp Control Evaluation System written by Edmond Chin-Ping Chang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Computer algorithms categories.

Development And Evaluation Of A Ramp Metering System On The Lodge Freeway

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Author : Joseph A. Wattleworth
language : en
Publisher:
Release Date : 1967

Development And Evaluation Of A Ramp Metering System On The Lodge Freeway written by Joseph A. Wattleworth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Electronic traffic controls categories.

Description And Evaluation Of Controlled Freeway Merging

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Author : Kenneth Alvin Brewer
language : en
Publisher:
Release Date : 1968

Description And Evaluation Of Controlled Freeway Merging written by Kenneth Alvin Brewer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with categories.

This dissertation involves the mathematical modeling of the operation of a freeway entrance ramp merging control system. A renewal process was utilized to develop expressions for the statistical moments of the time a vehicle waits at the entrance ramp signal for gap acceptance control. The moments so developed were compared to moments previously developed by combinatorial analysis. A Poisson input-arbitrary service queuing approach produced expressions for the expected queue at the signal, the expected wait in the queue and the expected time a vehicle would spend in the control system before being released at the signal. The basic queueing model was applied to fixed rate metering entrance ramp control with a constant service rate introduced into the model. The capacity-demand system of ramp control was modeled in terms of a generalized Poisson process for freeway outside lane vehicular arrivals. Probabilities of failure to meet freeway control system criteria were developed from the mathematical expressions. ...

Development And Evaluation Of Feedback Based Freeway Ramp Metering Strategies

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Author : Ilgin Yasar
language : en
Publisher:
Release Date : 2006

Development And Evaluation Of Feedback Based Freeway Ramp Metering Strategies written by Ilgin Yasar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Express highway interchanges categories.

Evaluation Of The Dallas Freeway Corridor System

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Author :
language : en
Publisher:
Release Date : 1981

Evaluation Of The Dallas Freeway Corridor 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 1981 with Electronic traffic controls categories.

Freeway On Ramp Traffic Responsive Control Methodology

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Author :
language : en
Publisher:
Release Date : 1975

Freeway On Ramp Traffic Responsive Control Methodology written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Express highways categories.

Evaluation Of The Dallas Freeway Corridor System

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Author :
language : en
Publisher:
Release Date : 1981

Evaluation Of The Dallas Freeway Corridor 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 1981 with Electronic traffic controls categories.

Critical Assessment Of The Features Of Two Ramp Metering Optimization Models

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Author : Eunmi Park
language : en
Publisher:
Release Date : 1993

Critical Assessment Of The Features Of Two Ramp Metering Optimization Models written by Eunmi Park 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.

Development And Evaluation Of A Framework For Selecting Operational Strategies For An Integrated Diamond Interchange

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Author : Zongzhong Tian
language : en
Publisher:
Release Date : 2004

Development And Evaluation Of A Framework For Selecting Operational Strategies For An Integrated Diamond Interchange written by Zongzhong Tian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Electronic traffic controls categories.

Development And Evaluation Of Operational Strategies For Providing An Integrated Diamond Interchange Ramp Metering Control System

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Author : Zongzhong Tian
language : en
Publisher:
Release Date : 2004

Development And Evaluation Of Operational Strategies For Providing An Integrated Diamond Interchange Ramp Metering Control System written by Zongzhong Tian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.

Diamond interchanges and their associated ramps are where the surface street arterial system and the freeway system interface. Historically, these two elements of the system have been operated with little or no coordination between the two. Therefore, there is a lack of both analysis tools and operational strategies for considering them as an integrated system. One drawback of operating the ramp-metering system and the diamond interchange system in isolation is that traffic from the ramp, particularly if it is metered, can spill back into the diamond interchange, causing both congestion and safety concerns at the diamond interchange. While flushing the ramp queues by temporarily suspending ramp metering has been the primary strategy for preventing queue spillback, it can result in freeway system breakdown, which would affect the entire system's efficiency. The aim of this research was to develop operational strategies for managing an integrated diamond interchange ramp-metering system (IDIRMS). Enhanced modeling methodologies were developed for an IDIRMS. A computer model named DRIVE (Diamond Interchange and Ramp Metering Integration Via Evaluation) was developed, which was characterized as a mesoscopic simulation and analysis model. DRIVE incorporated the enhanced modeling methodologies developed in this study and could be used to perform system analysis for an IDIRMS given a set of system input parameters and variables. DRIVE was validated against a VISSIM microscopic simulation model, and general agreement was found between the two models. System operational characteristics were investigated using DRIVE to gain a better understanding of the system features. Integrated control strategies (ICS) were developed based on the two commonly used diamond interchange phasing schemes, basic three-phase and TTI four-phase. The ICS were evaluated using VISSIM microscopic simulation under three general traffic demand scenarios: low, medium, and high, as characterized by the volume-to-capacity ratios at the metered ramps. The results of the evaluation indicate that the integrated operations through an adaptive signal control system were most effective under the medium traffic demand scenario by preventing or delaying the onset of ramp-metering queue flush, thereby minimizing freeway breakdown and system delays.