1. TAK Consulting Engineers, Inc., 23272 Mill Creek, Suite 250, Laguna Hills, Calif. 92653
2. Department of Civil Engineering, University of Wisconsin, Madison, 2210 Engineering Building, Madison, Wis. 53706
3. PRI Asphalt Technologies, Inc., 6408 Badger Drive, Tampa, Fla. 33610
4. All American Asphalt, 1776 All American Way, Corona, Calif. 91718