Wind Tunnel Analysis of the Effects of Planting at Highway Grade Separation Structures, HR-202, 1979

(1979) Wind Tunnel Analysis of the Effects of Planting at Highway Grade Separation Structures, HR-202, 1979. Transportation, Department of

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Abstract

Blowing and drifting snow has been a problem for the highway maintenance engineer virtually since the inception of the automobile. In the early days, highway engineers were limited in their capability to design and construct drift free roadway cross sections, and the driving public tolerated the delays associated with snow storms. Modern technology, however, has long since provided the design expertise, financial resources, and construction capability for creating relatively snowdrift free highways, and the driver today has come to expect a highway facility that is free of snowdrifts, and if drifts develop they expect highway maintenance crews to open the highway within a short time. Highway administrators have responded to this charge for better control of snowdrifting. Modern highway designs in general provide an aerodynamic cross section that inhibits the deposition of snow on the roadway insofar as it is economically feasible to do so.

Item Type: Departmental Report
Keywords: Aerodynamics, Cost effectiveness, Grade separations, Highway maintenance, Snow drifts, Snow phenomena, Wind tunnels, Winter maintenance
Subjects: Transportation
Transportation > Roads and highways
Transportation > Traffic safety
Transportation > Research
Transportation > Design and Construction
Transportation > Economics, finance, and taxes
Transportation > Environment
Transportation > Environment > Weather and climate
ID Code: 17285
Deposited By: Iowa DOT Library
Deposited On: 30 Jun 2014 12:37
Last Modified: 29 Jan 2015 21:10
URI: http://publications.iowa.gov/id/eprint/17285