The following is a list of selected publications during the last five years:

1. Valdes D.M., Martinez F., Bartolomei S., and Colucci B., “ Simulation of Metro Operations under Disruptions: Application to Tren Urbano in San Juan, Puerto Rico” Proceedings of the 85th Annual Meeting of the Transportation Research Board, January 2006, Washington D.C.

2. Valdes D.M., Martinez F., Bartolomei S., and Colucci B., “Analysis of Disruption Causes and Effects in Heavy Rail Systems” Proceedings of the Third International Latin American and Caribbean Conference for Engineering and Technology, June 2005, Cartagena, Colombia.

3. Valdes D.M., Torres C,. And Gutierrez J., “User Attitudes towards Public Transportation Systems in Puerto Rico: Main Effects for Tren Urbano” Proceedings, XIII Pan American Congress in Traffic and Transportation Engineering, September 2004, Albany, NY.

4. Valdes D.M., Colucci B., Velez J., and Gribbon R.B., “Highway Safety Training and Workforce Development Tools” Proceedings of the Second International Latin American and Caribbean Conference for Engineering and Technology, June 2004, Miami, FL.

5. Valdes D.M., and Paz-Cruz A., “An Integration of Adaptive Traffic Control and Travel Information” proceedings of the 83rd Annual Meeting of the Transportation Research Board, January 2004, Washington D.C.

6. Valdes D.M., Hill C., Gonzalez A., Saab V., and Toledo F., “The National Summer Transportation Institute (NSTI): 10 years motivating minority students toward professions in the transportation industry” 2003 American Society for Engineering Education Annual Conference, June 2003, Nashville, TN.

7. Valdes D.M., Gonzalez A. and Toledo F., “The first Summer Transportation Institute (STI) at the University of Puerto Rico: An experiment in motivating high school Puerto Ricans to study transportation related careers” 2002 American Society for Engineering Education Annual Conference, June 2002, Montreal.

8. Valdes D.M., Fisher D.L., and Baucage Y.M. “Use of Reference Location Markers in Incident Management” ITE Annual Conference 2001, Chicago, IL.

9. Abdelghany K. F., Valdes D.M., Abdelfatah A. S. and Mahmassani H. S. "Real-Time Dynamic Traffic Assignment and Path-Based Signal Coordination: Application to Network Traffic Management" Transportation Research Record., 2000, Washington D.C.

10. Valdes D.M. "Integrated Information and Traffic Control Strategies for Congested Urban Freeway Corridors." Ph.D. Thesis, The University of Texas at Austin, Austin, TX, 78712, December 1999.