COST-EFFECTIVENESS OF FREEWAY MERGING CONTROL
A MULTILEVEL SYSTEM DESIGN CONCEPT WAS USED TO ESTABLISH A HIERARCHY OF CONTROL THAT RESULTS NOT ONLY IN AN EFFICIENT SYSTEM BUT ALSO IN ONE THAT CAN BE IMPLEMENTED IN STAGES. EACH SUCCEEDING STAGE RESULTS IN INCREASED SYSTEM SOPHISTICATION AND CONSEQUENTLY INCREASED COST. THE COST EFFECTIVENESS OF EACH OF 4 CONTROL STAGES (OR LEVELS) HAS BEEN EVALUATED. THE COSTS AND EFFECTIVENESS OF ALTERNATIVE CONTROL SYSTEMS WERE DETERMINED FOR A SECTION OF THE GULF FREEWAY CURRENTLY UNDER SURVEILLANCE AND CONTROL. THE MEASURES OF EFFECTIVENESS REPORTED CONSTITUTE THOSE ACHIEVED DURING THE MORNING PEAK PERIOD FROM 7 TO 8 A.M. THE CAPITAL INVESTMENT AS RELATED TO THE NUMBER OF RAMPS CONTROLLED WAS ALSO INVESTIGATED. THE ANALOG SATELLITE SYSTEM APPEARS TO BE THE PREFERRED ALTERNATIVE FOR THE 8-RAMP SYSTEM STUDIED ON THE GULF FREEWAY. HOWEVER, WHEN THE NUMBER OF CONTROLLED RAMPS INCREASES, THE COST OF IMPLEMENTING THE CENTRAL DIGITAL SYSTEM WILL EVENTUALLY BE LESS THAN THE COST OF EITHER THE ANALOG OR DIGITAL SATELLITE SYSTEMS. /AUTHOR/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/030901977X
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Supplemental Notes:
- Sponsored by Committee on Effectiveness of Operational Measures and presented at the 50th Annual Meeting. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Dudek, Conrad L
- McCasland, W R
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Conference:
- 50th Annual Meeting of the Highway Research Board
- Location: Washington District of Columbia, United States
- Date: 1971-1-18 to 1971-1-22
- Publication Date: 1971
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 43-59
- Monograph Title: Operational improvements for freeways
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Serial:
- Highway Research Record
- Issue Number: 363
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Analog computers; Computers; Control systems; Cost effectiveness; Digital computers; Freeways; Merging control; Ramps; Systems engineering
- Old TRIS Terms: Analog systems; Digital systems; Merging control system
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00226163
- Record Type: Publication
- ISBN: 030901977X
- Report/Paper Numbers: HS-011 999
- Files: TRIS, TRB
- Created Date: Mar 7 1972 12:00AM