Skip to content
Timothy J. Lomax, Ph.D., P.E.

Timothy J. Lomax, Ph.D., P.E.

Research Engineer
Mobility Analysis - CE/TTI, Room 404E
Texas Transportation Institute
The Texas A&M University System
3135 TAMU
College Station, TX 77843-3135
ph. (979) 845-9960 · fax (979) 845-6008
t-lomax@tamu.edu

Short Biography

Dr. Lomax has been extensively involved in urban mobility research for more than 20 years. He developed and applied a methodology to assess areawide traffic congestion levels and congestion costs. The current study includes information on 85 cities throughout the U.S. from 1982 through 2003. The study examines trends in urban area mobility and documents the effect of transportation investments. Several measures of effectiveness have been used to describe mobility to a wide range of audiences including transportation professionals, public policy decision-makers, the media and the general public. The research, with funding from state DOTs and metropolitan planning organizations, will improve the mobility measuring capabilities and expand the ability to communicate with general audiences.

He has been invited to make presentations on congestion, mobility and performance measure issues to a variety of groups including the Transportation Research Board, the Institute of Transportation Engineers and state and local governments in the U.S. He has testified before subcommittees of the U.S. House of Representatives, U.S. Senate and Texas Senate on mobility issues. He has appeared on PBS's "Lehrer NewsHour," National Public Radio's "All Things Considered," major television network news shows and many newspapers, radio and television stations in major cities covered in the annual mobility report.

Dr. Lomax has also been involved in developing and evaluating a wide range of solutions to mobility problems, including high-occupancy vehicle facilities, and in improving decision-making processes and performance measurement. These studies assessed the need and cost effectiveness of potential improvements, improved the evaluation and prioritization processes and resulted in cost effective implementation of projects and programs.

Professional Interests

Mobility

Asset management

Infrastructure

Traffic congestion

Education

Ph.D., Civil Engineering, Texas A&M University, 1987.

M.Eng., Civil Engineering, Texas A&M University, 1982.

B.S., Civil Engineering, Texas A&M University, 1979.

Experience

Research Engineer, Mobility Analysis, Texas Transportation Institute, September 1992 - Present.

Program Manager, Mobility Analysis, Texas Transportation Institute, January 1996 - October 2007.

Associate Research Engineer, Texas Transportation Institute, January 1989 - August 1992.

Assistant Research Engineer, Texas Transportation Institute, December 1983 - December 1988.

Professional Registration

Registered Professional Engineer in Texas.

Affiliations

Transportation Research Board (TRB), Performance Measurement Committee.

Transportation Research Board (TRB), Task Force on Transportation Asset Management.

Transportation Research Board (TRB), Transportation Programming, Planning and Systems Evaluation Committee.

Transportation Research Board (TRB), National Data Requirements and Programs.

American Society of Civil Engineers (ASCE).

Institute of Transportation Engineers (ITE).

Association for Commuter Transportation.

Selected Publications

T.J. Lomax. Incorporating the Effect of Operational Improvements in the Texas Congestion Index Estimation Process. Implementation Report. 5-4853-01-1. Texas Transportation Institute, College Station, TX. February 2005.

S.M. Turner, R. Margiotta, T.J. Lomax. Lessons Learned: Monitoring Highway Congestion and Reliability Using Archived Traffic Detector Data. Compendium of Technical Papers: ITE 2005 Technical Conference and Exhibit, February 2005.

Selected Presentations

Identifying the Long-Range Transportation Improvement and Funding Needs for Urban Areas in Texas, Presented at 11th Transportation Research Board National Planning Applications Conference, Daytona, Florida, May 2007.

Methodology for Estimating the Long-Range Transportation Funding Needs for Urban Areas in Texas, Presented at 1st Border-to-Border Conference, McAllen, Texas, April 2007.

Information About: