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Citation |
Hawkins HG, Womack KN, Mounce JM. Transp. Res. Rec. 1993; 1403: 67. |
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Copyright |
(Copyright © 1993, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing) |
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DOI |
unavailable |
PMID |
unavailable |
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Abstract |
A survey of 1,745 Texas drivers was conducted to assess their comprehension of selected traffic control devices. The survey consisted of a 17-min videotape presentation of 46 devices, of which 38 were regulatory signs, warning signs, or pavement markings. For each question, the survey participant was exposed to an in-context and close-up view of the device. The questions were asked verbally, and the participants selected their answers from a list of four multiple choice responses, of which one was always "not sure". The survey results for questions on regulatory signs, warning signs, and pavement markings are presented. There are 13 regulatory signs in the survey, 18 questions on warning signs, and 7 questions on pavement markings. Desirable response rates ranged from 15.5 to 93.2%. The survey results should be interpreted carefully, because some of the questions tested understanding of specific aspects of the sign message, such as the speed message implied by the Curve sign. Response rates for other devices are influenced by the possible response choices. The survey results for individual questions are not directly comparable and must be interpreted in isolation. Language: en |