Prozzi and Madanat 1 EMPIRICAL-MECHANISTIC MODEL FOR ESTIMATING PAVEMENT ROUGHNESS by Jorge A. Prozzi 1 and Samer M. Madanat 2 1 Assistant Professor, Department of Civil Engineering, The University of Texas at Austin, ECJ 6.112, Austin, TX 78712, Phone: (512) 232-3488, Fax: (512) 475-8744, email: prozzi@mail.utexas.edu (corresponding author) 2 Professor, Civil and Environmental Engineering, University of California at Berkeley, 114 McLaughlin Hall, Berkeley, CA 94720, Phone: (510) 643-1084, Fax: (510) 642-1246, email: madanat@ce.berkeley.edu Total Number of Words: 7,434 TRB 2003 Annual Meeting CD-ROM Paper revised from original submittal.