1. Ph.D. Candidate and Graduate Research Assistant, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47909-2051 (corresponding author).
2. Professor, School of Civil Engineering, Purdue Univ., 550 Stadium Mall Dr., West Lafayette, IN 47907-2051.
3. Transportation Systems Section Manager, Division of Research and Development, Indiana Dept. of Transportation, West Lafayette, IN 47906.
4. State Construction Engineer, Indiana Dept. of Transportation, Indianapolis, IN 46204.
5. Construction Director, Crawfordsville District, Indiana Dept. of Transportation, IN 47933.
6. Manager, Office of Materials Management, Indiana Dept. of Transportation, Indianapolis, IN 46219.
7. Construction Manager, Parsons Brinckerhoff, Indiana Area, IN 46204.
8. Construction Program Oversight Manager, Federal Highway Administration, Indiana Division, Indianapolis, IN 46204.