1. Illinois Center for Transportation, University of Illinois at Urbana-Champaign, 205 North Mathews MC-250, Urbana, IL 61801.
2. Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 205 North Mathews MC-250, Urbana, IL 61801.
3. Korea Institute of Construction Technology, 2311 Daehwa-Dong, Ilsan-Gu, Goyang-Si, Gyeonggi-Do, Korea 411-712.
4. Advanced Transportation Research and Engineering Laboratory, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 1611 Titan Drive, Rantoul, IL 61866.