1. Technion-Israel Institute of Technology, Haifa 32000, Israel; presently, Visiting Professor, Dept. of Civil and Environmental Engineering, Univ. of Wisconsin-Madison, 1415 Engineering Dr., Madison, WI 53706. (corresponding author). E-mail: shapira@wisc.edu
2. Assistant Professor and Director, Construction Engineering and Management Program, Dept. of Civil Engineering, The Catholic Univ. of America, Washington, DC 20064. E-mail: lucko@cua.edu
3. Eminent Scholar Emeritus, Del E. Webb School of Construction, Arizona State Univ., Tempe, AZ 85287. E-mail: cliff.s@asu.edu