1. Civil, Architectural and Environmental Engineering, The University of Texas at Austin, 301 Dean Keeton C1752, Austin, Texas 78712, United States
2. Management Science and Statistics, The University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
3. Civil and Environmental Engineering, The University of Washington, 3760 E. Stevens Way NE, Seattle, Washington 98195, United States