Accession Number : AD0746622

Title :   Traffic Tests to Determine the Benefits of Vegetation in Increasing Traffic Coverages,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS

Personal Author(s) : Womack,L. M.

Report Date : DEC 1965

Pagination or Media Count : 50

Abstract : The report describes the accelerated traffic tests conducted with a test load and tire pressure selected to cause failure in an unsurfaced test section at a low-coverage level (less than 100 coverages) to determine the adequacy of present criteria for predicting low-coverage levels and to determine if there is added benefit in terms of increased traffic coverages from heavily sodded areas as opposed to areas which are clear of vegetation and root structure. Selection of the load and tire pressure was made from current criteria for the CBR (California Bearing Ratio) required for operation of aircraft on unsurfaced soils and was based on the average CBR of the 0- and 6-in. depth. (Author)

Descriptors :   (*LANDING FIELDS, TRAFFICABILITY), PLANTS(BOTANY), SOILS, LOADS(FORCES), GRASSES, PRESSURE, TIRES, PREDICTIONS, PERFORMANCE(ENGINEERING), TEST METHODS

Subject Categories : Terminal Flight Facilities

Distribution Statement : APPROVED FOR PUBLIC RELEASE