1. APT System Manager, Construction-Pavement Section, Texas Dept. of Transportation, 4203 Bull Creek Rd., Austin, TX 78731.
2. Transportation Engineer, Construction-Pavement Section, Texas Dept. of Transportation, 4203 Bull Creek Rd., Austin, TX 78731.
3. Research Engineer, Texas Transportation Institute, College Station, TX 77843.
4. Associate Professor, I-Shou Univ. Dept. of Civil Engineering, Kaohsiung, Taiwan.
5. Research Associate, Texas Transportation Institute, College Station, TX 77843.