Operationalizing Time-Space Prism Accessibility in a Building-Level Residential Choice Model Empirical Results from the Puget Sound Region Brian H. Y. Lee (Corresponding Author) Department of Urban Design and Planning University of Washington Seattle, Washington 98195-5740 Phone: +1.206.616.3799 Fax: +1.206.685.9597 Email: bhylee@u.washington.edu Paul Waddell Evans School of Public Affairs University of Washington, Seattle, Washington 98195-3055 Phone: +1.206.221.4161 Fax: +1.206.685.9597 Email: pwaddell@u.washington.edu Liming Wang Department of Urban Design and Planning University of Washington Seattle, Washington 98195-5740 Phone: +1.206.616.4499 Fax: +1.206.685.9597 Email: lmwang@u.washington.edu Ram M. Pendyala Department of Civil and Environmental Engineering Arizona State University Room ECG252 Tempe, Arizona 85287-5306 Phone: +1.480.727.9164 Fax: +1.480.965.0557 Email: ram.pendyala@asu.edu Paper Number: 09-0354 Submission Date: 1 August 2008 Word Count: 6432 in text + 2 tables (500) + 2 figures (500) = 7432 TRB 2009 Annual Meeting CD-ROM Original paper submittal - not revised by author.