Accession Number : ADM000283

Title :   Effects of Variable Tire Pressure on Road Surfacings. Volume 1: Design, Construction, Behavior under Traffic, and Test Results (Computer Diskette).

Descriptive Note : Technical rept.

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS GEOTECHNICAL LAB

Report Date : AUG 1993

Pagination or Media Count : 6

Abstract : File characteristics: Data file (140 files); ASCII character set. Physical description: 6 computer diskettes; high density; 3 1/2 in.;2.0MB. System Requirements: IBM-PC Compatible; MS-DOS; Lotus 1.2.3. The objective of this study was to determine the effects of variable tire pressure on road surfacings. A specially designed test road was constructed and subjected to both loaded and unloaded 18-wheeled log trucks operating in two distinct traffic lanes. The traffic was applied with the trucks operating at low- and high-tire pressures. This report presents the background, design, construction procedure, and discussion of the performance of the various items during traffic. The results show that (a) when failures occurred in both lanes of the same asphalt concrete item, the ratio of low-tire-pressure traffic to high-tire-pressure traffic ranged between 1.5 and 2.1, (b) considerable maintenance will be required on aggregate surface grades receiving high-tire-pressure unloaded traffic because of severe wash-boarding, (c) the installation of central tire inflation systems that allow a driver to adjust a vehicle's tire pressure while in motion will be cost-effective for heavy trucks traveling on low volume, low speed roads

Descriptors :   *MAGNETIC DISKS, *TIRES, *ROAD TESTS, *PRESSURE MEASUREMENT, *PAVEMENTS, ASPHALT, THICKNESS, INFLATING, GROUND TRAFFIC, DETERIORATION, CONSTRUCTION.

Subject Categories : Recording and Playback Devices
      Surface Transportation and Equipment
      Civil Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE