S. Travis Waller, Ph.D.
Adjunct Professor
Phone: (512)537-8044
Fax: (512) 475-8744
Email: s.travis.waller@gmail.com
UT Mail: C1761
Mailing Address:
The University of Texas at Austin
Civil, Architectural and Environmental Engineering Department-TRAN
1 University Station C1761
Austin, TX 78712-0273
Area(s) of Expertise:
Transportation Engineering
Educational Qualifications:
Ph.D., Northwesten University, Industrial Engineering, 2000
M.S., Northwestern University, Industrial Engineering, 1999
B.S., The Ohio State University, Electrical Engineering, 1997
Technical Interests:
Modeling and large-scale optimization of transportation systems including network design, stochastic shortest path algorithms, and dynamic traffic assignment. Planning under uncertainty, transportation applications of information technology, and traffic simulation.
Selected Publications:
Waller, S.T., A.K. Ziliaskopoulos (2002) "On the Online Shortest Path Problems." Networks 40(4), 216-227.
Li, Y., Waller, S.T. and A.K. Ziliaskopoulos (2001) "A Decomposition Method for System-Optimal Dynamic Traffic Assignment" Networks and Spatial Economics (In Press).
Ziliaskopoulos, A.K. and S.T. Waller (2000) "An Internet Based Geographic Information System that Integrates Data, Models, and Users for Transportation Applications" Transportation Research Vol. 8C pp. 427-444.
Waller, S.T., J.L. Schofer, and A.K. Ziliaskopoulos (2001) "Evaluation with Traffic Assignment under Demand Uncertainty" Journal of the Transportation Research Board No. 1771, pp. 69-75.
Waller, S.T. and S. Ukkusuri "A Linear Programming Approach for the User Optimal Dynamic Traffic Assignment Problem" Submitted to Transportation Science.