INVESTIGATION OF AN INTERVEHICLE SPACING DISPLAY
UNSTABLE SPACING BETWEEN AUTOMOBILES TENDS TO AFFECT EFFICIENT TRAFFIC FLOW ADVERSELY. TWO EXPERIMENTS WERE UNDERTAKEN TO TEST THE EFFECT OF TWO TYPES OF DRIVER INFORMATION DISPLAYS /METERS/ ON VEHICLE SPACING. THE FIRST METER SHOWED THE DRIVER THE ACTUAL DISTANCE BETWEEN HIS CAR AND THE CAR AHEAD. THE SECOND METER SHOWED THE DRIVER THE ALGEBRAIC SUM OF THE DISTANCE BETWEEN THE TWO CARS AND THEIR RELATIVE VELOCITY. THE LATTER DISPLAY INCREASED SPACING STABILITY. NO MARKETABLE DEVICE HAS BEEN DESIGNED. ACTUAL SPACING DATA WERE COMPARED WITH THEORETICAL CURVES OBTAINED FROM STANDARD CAR-FOLLOWING LAWS. A REASONABLE APPROXIMATION WAS OBTAINED. /AUTHOR/
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Supplemental Notes:
- 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:
- Bierley, Robert L
- Publication Date: 1963
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 58-75
- Monograph Title: Driver characteristics, night visibility, and driving simulation
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Serial:
- Highway Research Record
- Issue Number: 25
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Alternatives analysis; Awareness; Car following; Crash investigation; Distance; Distance measuring equipment; Drivers; Information display systems; Mathematical analysis; Spacing; Stability (Mechanics); Studies; Theory; Traffic flow; Traffic safety; Vehicles; Velocity measurement
- Old TRIS Terms: Displays
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment;
Filing Info
- Accession Number: 00219534
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: Jul 8 1994 12:00AM