AN ANTI-REAR-END COLLISION SYSTEM
IN THE STUDY OF ELECTRONIC AIDS TO HIGHWAY SAFETY, A PARTICULARY ALLURING SUBJECT HAS BEEN THE APPLICATION OF ELECTRONICS TO LONGITUDINAL CONTROL OF INDIVIDUAL CARS. THE PROBLEM IS TO OBTAIN THE BEST RESPONSE TO VELOCITY. THE SIMPLEST TYPE OF CONTROL WOULD BE ONE THAT WOULD MAINTAIN A CONSTANT HEADWAY, HOWEVER, THIS TYPE OF CONTROL IS BASICALLY UNSTABLE AND CANNOT BE MAINTAINED. THE SHORTCOMING OF STRAIGHTFORWARD CONTROL TECHNIQUES CAUSED ATTENTION TO BE TURNED TO THE HUMAN DRIVER. SIGNIFICANT IMPROVEMENTS WERE MADE IN BOTH THE HUMAN DRIVER DESCRIPTION AND THE AUTOMATIC ACCELERATION CONTROL SYSTEM WHEN THE TRANSFER WAS MADE FROM CONTINUOUS DRIVING FUNCTION DRIVING CRITERIA TO THRESHOLD CRITERIA. ALSO, STUDY OF THE HUMAN DRIVER POINTED THE WAY TO A FEASIBLE AUTOMATIC SYSTEM. IT IS HOPED THAT AS THE DECISION POINT MODEL OF THE HUMAN DRIVER BECOMES MORE ACCURATE, IT WILL ALSO DESCRIBE THE DRIVER IN THE TRANSIENT STATE, SUCH AS RAPIDLY OVERTAKING A LEAD CAR. THIS DESCRIPTION COMBINED WITH THE RESULTS OF A STUDY OF THE BEST POSSIBLE MOTION OF THE CONTROLLED CAR IN THE TRANSIENT STATE SHOULD YIELD THE OPTIMUM DRIVING SYSTEM, CHARACTERIZED BY A REDUCTION IN REAR-END COLLISIONS AND HIGHER SAFE TRAFFIC DENSITY.
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Supplemental Notes:
- No 10, pp 1-9, 11 FIG, 2 REF 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:
- Roeca Jr, William B
- Thomas, Adam C
- Publication Date: 1963
Media Info
- Media Type: Digital/other
- Features: Figures; Tables;
- Pagination: pp 1-9
- Monograph Title: Electronic traffic surveillance and control
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Serial:
- Highway Research Record
- Issue Number: 10
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Acceleration (Mechanics); Automatic control; Decision making; Driver performance; Drivers; Electronic control; Highway safety; Personnel performance; Reaction time; Rear end crashes; Reduction (Chemistry); Traffic density; Traffic safety; Velocity
- Uncontrolled Terms: Driver reaction
- Old TRIS Terms: Reduction
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 00225108
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Feb 2 1994 12:00AM