TRB Paper No.11-3093 Dynamic Data Maintenance for Quality Data, Quality Research Dilruba Ozmen-Ertekin, Ph.D., PE (Corresponding Author ) Assistant Professor Engineering Department Hofstra University 133 Hofstra University Hempstead, NY 11549 Phone: 516-463 6155 Fax: 516-463 4939 email: eggdzo@hofstra.edu Kaan Ozbay, Ph.D. Associate Professor Civil and Environmental Engineering Department Rutgers University 623 Bowser Rd. Piscataway, NJ 08854 Phone: 732-445 2792 Fax: 732-445 0577 email: kaan@rci.rutgers.edu Paper Submitted for Presentation at the Transportation Research Board’s 90 th Annual Meeting, 2011, Washington, D.C. Statewide Transportation Data and Information Systems Committee (ABJ20) Re-Submission Date: November 15, 2010 Word Count: 7602 (5102 words + 4 Tables + 6 Figures) TRB 2011 Annual Meeting Paper revised from original submittal.