[1] Univ Colorado Boulder, Dept Civil Environm & Architectural Engn, Construct Safety Res Alliance, 1111 Engn Dr,UCB 428, Boulder, CO 80309 USA
[2] Anglia Ruskin Univ, Dept Engn & Built Environm, Construct Management, Bishop Hall Ln, Chelmsford CM1 1SQ, Essex, England
[3] Univ Colorado Boulder, Dept Civil Environm & Architectural Engn, Construct Engn, 1111 Engn Dr,UCB 428, Boulder, CO 80302 USA