JUDGMENT OF VEHICLE SPEEDS AND TRAFFIC PATTERNS

SUBJECTS' SPEED ESTIMATES, TRAFFIC PATTERN JUDGMENTS, AND PASSING JUDGMENTS FROM 16MM MOTION PICTURES TAKEN FROM AN AUTOMOBILE MOVING ALONG A FREEWAY AND A RURAL ROAD INDICATED A HIGH POSITIVE CORRELATION BETWEEN TESTS AND RETESTS OF SPEED ESTIMATIONS OF A FREEWAY; LITTLE CORRELATION BETWEEN SPEED ESTIMATIONS ON FREEWAYS VERSUS RURAL ROADS; CONSISTENT OVERESTIMATIONS OF SPEED FROM FILMS TAKEN ON FREEWAYS (COMPARED TO REAL SPEEDS); CONSISTENT UNDERESTIMATIONS OF SPEED FROM FILMS TAKEN ON RURAL ROADS (COMPARED TO REAL SPEEDS); NO CORRELATION BETWEEN SPEED ESTIMATIONS PER SE AND JUDGMENTS OF TRAFFIC PATTERNS OR PASSING; A TENDENCY FOR THE DRIVERS NOT TO PASS WHERE LEGALITY OR DISTANCE IS QUESTIONABLE; AND A POSITIVE INFLUENCE OF A POSTED NO PASSING ZONE SIGN. /AUTHOR/

• Corporate Authors:

  University of California, Los Angeles

  Los Angeles, CA  United States 

  Itte, Calif Univ, Los Angeles

  ,    

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Case, H W
  • HULBERT, S F
  • Beers, J
• Publication Date: 1972

Media Info

• Pagination: 146 p.

Subject/Index Terms

• TRT Terms: Behavior; Drivers; Freeways; Motion pictures; Rural highways; Speed
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00227528
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: HS-014 754
• Files: TRIS, USDOT
• Created Date: Jan 11 1989 12:00AM