00222762

Component

http://onlinepubs.trb.org...rbbulletin/330/330-006.pdf

LITTLE INFORMATION IS PRESENTLY AVAILABLE ON THE RELATION BETWEEN VARIOUS DRIVER CHARACTERISTICS AND FOLLOWING DISTANCE. USING A PHOTOGRAPHIC TECHNIQUE FOR MEASURING DISTANCE BETWEEN VEHICLES, TWO EXPERIMENTS WERE DESIGNED TO MEASURE (1) THE EFFECTS ON FOLLOWING DISTANCE OF DRIVER SET, OR GENERAL ATTITUDE TOWARD THE PARTICULAR DRIVING SITUATION, AND (2) THE ABILITY OF DRIVERS TO MAINTAIN SPECIFIED FOLLOWING DISTANCES, BOTH WITH UNAIDED VISION AND WITH TWO SIMPLE JUDGMENT AIDS. WHEN DRIVERS WERE ASKED TO DRIVE ON A NEWLY CONSTRUCTED HIGHWAY NOT YET OPEN TO TRAFFIC UNDER EACH OF THREE SETS--EMERGENCY, HABITUAL, AND MAXIMUM SAFETY--AT SPEEDS OF BOTH 30 AND 50 MPH, THE RESULTS INDICATED THAT DRIVERS BELIEVED THEY HABITUALLY DROVE WITH MAXIMUM SAFETY, AS FAR AS ACTUAL FOLLOWING DISTANCES WERE CONCERNED. THE DISTANCES OBTAINED UNDER THE HABITUAL SET WERE FOUND TO BE SOMEWHAT GREATER THAN THOSE FOUND IN REGULAR TRAFFIC ON SIMILAR HIGHWAYS BY PREVIOUS INVESTIGATORS. BOTH AIDS TO DISTANCE JUDGMENT SUBSTANTIALLY REDUCED ERRORS MADE WITH THE UNAIDED EYE, AT BOTH 6- AND 8-CAR LENGTHS AND A SPEED OF 40 MPH. /AUTHOR/

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01410711

pp 52-59

1962

Highway Research Board Bulletin

41st Annual Meeting of the Highway Research Board

Digital/other

Figures (2) ; References (6) ; Tables (7)

Distance measuring equipment; Drivers; Following distance; Human characteristics; Judgment (Human characteristics); Photography; Vision

Driver characteristics

Highways; Safety and Human Factors; Society

TRIS, TRB, ATRI

Aug 28 1994 12:00AM

• CRITICAL INCIDENTS IN BEHIND-THE-WHEEL INSTRUCTION IN DRIVER EDUCATION
• DEVELOPMENT OF A VEHICLE SIMULATOR FOR EVALUATING DRIVER PERFORMANCE
• DRIVER RESPONSE TO AMBER PHASE OF TRAFFIC SIGNALS
• EFFECT OF EXPRESSWAY DESIGN ON DRIVER TENSION RESPONSES
• EFFECT OF SPEED CHANGE INFORMATION ON SPACING BETWEEN VEHICLES
• HUMAN FACTORS RESEARCH REPORTS - AASHO ROAD TEST 1. FIELD STUDY OF VIGILANCE UNDER HIGHWAY DRIVING CONDITIONS
• HUMAN FACTORS RESEARCH REPORTS - AASHO ROAD TEST II. PREDICTION OF VIGILANCE
• RECOGNITION TIME FOR SYMBOLS IN PERIPHERAL VISION
• SOME SOLUTIONS OF VISIBILITY AND LEGIBILITY PROBLEMS IN CHANGEABLE SPEED COMMAND SIGNS