TY Hu, TY Liao, and YC Lu 1 A Study on the Solution Approach for Dynamic Vehicle Routing Problems under Real-time Information Ta-Yin Hu Department of Traffic and Transportation Engineering and Management Feng Chia University, Taichung, Taiwan TEL: 886-4-24517250 - 4650 FAX: 886-4-24511173 EMAIL: tyhu@fcu.edu.tw Tsai-Yun Liao Department of Information Management Chao Yang University of Technology, Taichung, Taiwan, R.O.C. Ying-Chih Lu Department of Traffic and Transportation Engineering and Management Feng Chia University, Taichung, Taiwan, R.O.C. July 31 2002 Revised, Nov. 15, 2002 Number of words: approximately 5,900 words. Submitted for presentation at the Annual Meeting of the Transportation Research Board, TRB 2003 Annual Meeting CD-ROM Paper revised from original submittal.