1. PhD, Pavement Performance Engineer, Arizona Dept. of Transportation, 1221 North 21st Ave., Phoenix, AZ 85009-3740; formerly, Research Assistant, Dept. of Civil Engineering, 1419 CEBA, Louisiana State Univ.
2. PhD, Freeport-McMoRan Professor, Dept. of Civil Engineering, 1419 CEBA, Louisiana State Univ., Baton Rouge, LA 70803. E-mail: