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Optical Engineering

Using Visual Range Data For Highway Operations In Blowing Snow
Author(s): Ronald D. Tabler
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Paper Abstract

This paper describes characteristics of visual range attenuation in blowing snow in relation to motorist vision. Visual range V is related to wind speed U according to V = AU-5 with the A coefficient changing in response to snow availability. A lower limit for visual range is described with A =1.1 X108 m6 s-5. An operational monitoring system used on Interstate Highway 80 in Wyoming demonstrates how real-time computer analysis of photometric data can be used to determine the A value, interpret visual range in terms of vehicle operation, and provide automated traffic operations decisions.

Paper Details

Date Published: 1 February 1984
PDF: 7 pages
Opt. Eng. 23(1) 230155 doi: 10.1117/12.7973253
Published in: Optical Engineering Volume 23, Issue 1
Show Author Affiliations
Ronald D. Tabler, USDA Forest Service (United States)

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