A SYSTEM PARTITION APPROACH TO IMPROVE SIGNAL TIMING Zong Tian Associate Transportation Researcher Texas Transportation Institute The Texas A&M University System College Station, TX 77843 Tel: 979-864-2458 E-mail: z-tian@tamu.edu Thomas Urbanik, Professor Civil and Environmental Engineering University of Tennessee 219-B Perkins Hall Knoxville, TN 37996-2010 E-Mail: turbanik@utk.edu Carroll Messer, Professor Civil Engineering Department Texas A&M University College Station, TX 77843 E-mail: c-messer@tamu.edu Kevin Balke, Ph.D., P.E. Texas Transportation Institute The Texas A&M University System College Station, TX 77843 E-mail: k-balke@tamu.edu Peter Koonce, P.E. Senior Engineer Kittelson and Associates, Inc. Portland, OR 97205 E-mail: PKOONCE@kittelson.com Text: 5055 Total Figures: 8 Total Tables: 1 Total Words: 7305 TRB 2003 Annual Meeting CD-ROM Paper revised from original submittal.