Nada D. Trout

Trout, Nada

Assistant Research Scientist

Work Zone and Dynamic Signs - TTI Headquarters and Research Building, Room 251
Texas A&M Transportation Institute
Texas A&M University System
3135 TAMU
College Station, TX 77843-3135
ph. (979) 845-5690 · fax (979) 845-6006

Short Biography

Mrs. Trout has worked in the transportation field for 25 years. Initially, she worked for the City of Galveston Traffic Department for nine years where she supervised crews in various transportation studies. She also monitored city expenditures related to planning and development grants, yearly budgets, and assisted in preparation of the Capital Improvement Program.

Mrs. Trout is currently an Assistant Research Scientist with the Transportation Systems Division, Texas A&M Transportation Institute. She has extensive practical field experience regarding transportation safety issues, participating on numerous research studies for the Federal Highway Administration, National Cooperation Highway Research Program, and the Texas Department of Transportation. In addition, Mrs. Trout has acquired significant experience in the use and administration of various survey techniques in transportation research. For the last three years, she has utilized the focus group method to assess transportation needs to older drivers, to help develop countermeasures for the minority and DWI problems, to help develop public service campaigns to increase teenage seat belt usage, and recently completed a project to develop recommendations on the driver's education curriculum. She has conducted one-on-one surveys to determine motorists understanding of lane control signals, employees use of traffic information provided (via computer monitors) in the work place, and economic effects of construction on adjacent businesses; performed mail out surveys to examine the applications of advanced motorist information systems in the work place, obtain information on traffic impacts of reconstruction activities, and to determine how effectively trip reduction programs reduce vehicle usage. She has also used brainstorm and syndetic group techniques to assess visibility, location and spacing needs for freeway lane control signals; critical incident surveys to identify critical freeway signing locations in Texas and Florida, and other observational and telephone survey techniques as needed.

Mrs. Trout has also been involved with research on work zone safety for several years. She participated in developing four training programs on Manual on Uniform Traffic Control Devices work zone traffic control requirements and was the research supervisor on a project for TxDOT to identify new equipment to improve worker safety. Mrs. Trout has also been involved with research on transportation management for major transportation emergencies, which was developed into a short course.

Mrs. Trout received her Bachelor of Science in Sociology at Sam Houston State University and an Associate Degree from Blinn Jr. College. She is an active member of the Institute of Transportation Engineers (ITE), the Texas Section of ITE, the American Sociology Association (ASA), and the Southwestern Social Science Association.


  • B.A., Sociology, Sam Houston State University, 1992.
  • A.A., General Studies, Blinn College, 1987.


  • Assistant Research Scientist, Work Zone and Dynamic Signs, Texas A&M Transportation Institute, June 2014 - Present.
  • Research Associate, Texas Transportation Institute, September 1979 - September 1991.
  • Traffic Investigator, Traffic Department, City of Galveston, September 1970 - August 1979.


  • Member, Institute of Transportation Engineers, Texas Section (TexITE).
  • Member, American Sociological Association (ASA).
  • Associate Member, Institute of Transportation Engineers (ITE).

Short Courses Taught

Transportation Management for Major Emergencies. Texas Engineering Extension Service.

Selected Publications

N.D. Trout, M.D. Finley, B.R. Ullman. Motorists' Understanding of Automated Flagger Assistance Devices in Work Zones. Transportation Research Record: Journal of Transportation Research Board, No. 2337, 2013, pp. 42-49.

M.D. Finley, B.R. Ullman, N.D. Trout, E. Park. Studies to Determine the Effectiveness of Automated Flagger Assistance Devices and School Crossing Devices. 0-6407-1. Texas Transportation Institute, College Station, TX. January 2012.

D. Sun, P. Ravoola, M. Faruqi, B.R. Ullman, N.D. Trout. Assessment of Need and Feasibility of Truck-Mounted Changeable Message Signs (CMS) for Scheduled and Unscheduled Operations: Technical Report. 0-6167-1. Texas A&M University-Kingsville, Kingsville, TX. March 2011.

M.D. Finley, L. Theiss, N.D. Trout, J.D. Miles, A.A. Nelson. Studies to Determine the Effectiveness of Longitudinal Channelizing Devices in Work Zones. 0-6103-1. Texas Transportation Institute, College Station, TX. January 2011.