A PROBIT-BASED TIME-DEPENDENT STOCHASTIC USER EQUILIBRIUM TRAFFIC ASSIGNMENT MODEL Kuilin Zhang klzhang@northwestern.edu Hani S. Mahmassani (corresponding author) masmah@northwestern.edu The Transportation Center Northwestern University 600 Foster st. Evanston, IL 60208 and Chung-Cheng Lu jasoncclu@gmail.com Department of Logistics Management National Kaohsiung First University of Science and Technology, 2 Jhuoyue Road, Nanzih District Kaohsiung City, 811, Taiwan August 1, 2007 Revised November 15, 2007 Total words: 5330 + Figures: 6 + Tables: 3 = 7580 Submitted for presentation at the 87 th Annual Meeting of the Transportation Research Board, January 2008, Washington, D.C., USA, and publication in Transportation Research Record TRB 2008 Annual Meeting CD-ROM Paper revised from original submittal.