Using Visual Range Data For Highway Operations In Blowing Snow

Ronald D. Tabler

doi:10.1117/12.935870

22 September 1983 Using Visual Range Data For Highway Operations In Blowing Snow

Ronald D. Tabler

Proceedings Volume 0414, Optical Engineering for Cold Environments; (1983) https://doi.org/10.1117/12.935870
Event: 1983 Technical Symposium East, 1983, Arlington, United States

Abstract

This paper describes characteristics of visual range attenuation in blowing snow in rela-tion to motorist vision. Visual range V is related to wind speed U according to V = A U-5 with the A coefficient changing in response to snow availability. A lower limit for visual range is described with A = 1.1.108 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.

Citation Download Citation

Ronald D. Tabler "Using Visual Range Data For Highway Operations In Blowing Snow", Proc. SPIE 0414, Optical Engineering for Cold Environments, (22 September 1983); https://doi.org/10.1117/12.935870

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