DOT, FED HWY ADMN, Office of Acquisition Management, 400 7TH ST, SW, Room 4410, Washington, DC 20590

A -- TIRE PAVEMENT INTERFACE PRESSURE PATTERNS SOL DTFH61-96-R-00053 DUE 042696 POC Behrooz Behpoory, Contract negotiator, 202-366-4224. The objective of this contract is to measure in three-dimensions the forces and stresses and develop tire pressure patterns from rolling and fixed position dynamic load tests ( in field and laboratory) of various type of tires under different operating conditions. The effort herein should be followed by developing a predictive mathematical model, which is able to relate all these variables to each other in order to form data source for a finite element tire simulation models. Neural network systems, or equivalents, techniques can be used for this purpose. The linked pressure distribution algorithm and tire model will be used for pavement design and truck simulation models. The Contractor shall form a research team of experts in truck tires with extensive knowledge of tire structure, design and testing and able to provide analysts, statisticians, mathematicians, scientist, engineers and use the best available technicians to conduct rolling and fixed position dynamic loading tests, to measure footprints and footprint pressure distributions for use in the formulation of algorithms representing these characteristics for use in VESYS, UMPAD, ILLISLAB, and Superpave. (0074)

Loren Data Corp. http://www.ld.com (SYN# 0008 19960315\A-0008.SOL)