Affiliation: | 1Construction Safety Supervisor, Hoffman Construction Company, Portland, OR 97205. E-mail: sathy-rajendran@hoffmancorp.com 2Associated Professor, Dept. of Civil, Construction, and Environmental Engineering, Oregon State Univ., 220 Owen Hall, Corvallis, OR 97331 (corresponding author). E-mail: john.gambatese@oregonstate.edu
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