An analysis of real-time contorl measures for calculating urban freeway operation PDF Download
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Author:
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ISBN:
Category :
Languages : en
Pages : 368
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 368
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Book Description
Author: Robert E. Brydia
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ISBN:
Category : Express highways
Languages : en
Pages : 46
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Book Description
The concept of real-time performance measurement analyzes feedback from the operational response to freeway incident conditions and provides a quantitative methodology for assessing the impacts of various operational strategies. The significance of this technique is that it can enhance the efficiency of freeway incident management. Even a small percent reduction in the length of an incident would accrue millions of dollars of time-savings for the affected portion of the roadway. The design and construction of a real-time performance measurement system require an understanding of the performance measures and their application to transportation, a review of the state-of-the-practice in performance measurement, and an experimental design on which to build a prototype system.
Author: Menahem Eldor
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Category : Electronic traffic controls
Languages : en
Pages : 622
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Book Description
Author: Paul F. Everall
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ISBN:
Category : Crime
Languages : en
Pages : 210
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Author:
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Category : Highway research
Languages : en
Pages : 830
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Author:
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Category : Southwest, New
Languages : en
Pages : 606
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Author:
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Category : Dissertations, Academic
Languages : en
Pages : 760
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Author: Conrad Louis Dudek
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Category :
Languages : en
Pages : 420
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Book Description
This dissertation was concerned with a study of operational controls on urban freeways. An analysis was made of the inbound Gulf Freeway to define the operational problems resulting from vehicular incidents. It was found that significant congestion, delay, and stoppage waves frequently occur on the inbound Gulf Freeway because of the reduction in capacity caused by incidents on the main-lanes. Approximately 80 percent of the incidents reduce the inbound freeway capacity by one-half or more; about 13 incidents per week occur in the study section Monday through Friday from 6 a.m. to 7 p.m. A design concept of a prototype was formulated to increase freeway efficiency by alerting motorists to stoppage waves on freeway sections such as overpasses having restricted sight distances. The prototype was referred to as a safety warning system. It is anticipated that the improved efficiency will result in fewer accidents; reduced system travel time, driver anxiety, and driver discomfort; and improvement in the level of service. Several design alternatives were evaluated. A control technique utilizing critical energy as a parameter was developed and its application to digital computer control of the prototype was investigated. Evaluations were made of the performance, reliability, stability, and sensitivity of the system using a one-lane criterion for control. ...
Author: United States. Federal Highway Administration
Publisher:
ISBN:
Category : Highway research
Languages : en
Pages : 516
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Author: United States. National Highway Safety Bureau
Publisher:
ISBN:
Category : Traffic safety
Languages : en
Pages : 148
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Book Description
One of a 5-volume set, each covering a broad subject, which cumulates annually all citations that appeared during the year in: Highway safety literature.
