|
|
|
Title: SIMULATOR AND FIELD MEASURES OF DRIVER AGE DIFFERENCES IN LEFT-TURN GAP JUDGMENTS
Accession Number: 00713535
Record Type: Component
Availability: Find a library where document is available Abstract: Research evaluated the effect of varying approach vehicle speed on judgments of the last safe moment to initiate a left turn at an intersection ahead of oncoming traffic. Young (mean age 33.3 years), young-old (mean age, 65.1 years), and old-old (mean age, 79.4 years) drivers were tested in a controlled field study and in laboratory studies by using varying simulation techniques. A repeated-measures design acquired the same responses from the same subjects by using the same stimuli under all methodologies. Reliable age differences in both target recognition distance and judged minimum safe gap distance were demonstrated, as was an age X speed interaction for gap judgment. Principal findings indicate a relative insensitivity to vehicle approach speed in left-turn situations by older drivers. It is argued that this produces a reliance on instantaneous judgments of perceived distance alone, disproportionately increasing the risk for older drivers when there is an isolated speeder in the opposing traffic stream. A countermeasure need is thus identified, but countermeasure effectiveness was not investigated in the present research. Furthermore, the present findings suggest that image and scene attributes including high resolution and correct size and perspective cues may be prerequisites for valid and generalizable driving simulation measures of visual sensory and perceptual task performance.
Supplemental Notes: This paper appears in Transportation Research Record No. 1485, Human Performance and Safety in Highway, Traffic, and ITS Systems. 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
Monograph Title: Human performance and safety in highway, traffic, and ITS systems Monograph Accession #: 01399793
Language: English
Authors: Staplin, LorenPagination: p. 49-55
Publication Date: 1995
Serial: Features: Figures
(2)
; References
(11)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Safety and Human Factors; I83: Accidents and the Human Factor
Files: TRIS, TRB
Created Date: Nov 13 1995 12:00AM
More Articles from this Serial Issue:
|
