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- W614389090 abstract "One cause of highway accidents is the inability to see traffic signs because of their decreased retroreflectivity which is necessary for night driving. Traffic signs must be clearly visible and easily understood in time for a driver to respond. The retroreflectivity of a sign depends on the sheeting material used and subsequently its ability to redirect a vehicles' headlights back to the driver. Currently the only Canadian guidelines for nighttime visibility signs are in the Uniform Traffic Control Devices for Canada (UTCD). The manual simply states that warning and regulatory signs be reflectorized or illuminated to show the same colour and shape during day and night. No minimum retroreflectivity standards have been established. This research involved an evaluation of two-hundred-and-eighty-one in-service traffic signs for different districts and road classes in New Brunswick. The measurements were obtained in the autumn of 1994 during daylight using a retroreflectometer. A comparison is made between the data obtained and the recently developed United States Federal Highway Administration (FHWA) standards. Furthermore, a sign management system is discussed based on the survey results. For the covering abstract of this conference see IRRD number 872753. (A)" @default.
- W614389090 created "2016-06-24" @default.
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- W614389090 date "1996-01-01" @default.
- W614389090 modified "2023-09-27" @default.
- W614389090 title "EVALUATION OF TRAFFIC SIGN RETROREFLECTIVITY" @default.
- W614389090 hasPublicationYear "1996" @default.
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