1. Graduate Engineer, Walter P. Moore & Associates, 3131 Eastside, 2nd Floor, Houston, TX 77098.
2. Associate Research Scientist, Texas Transportation Institute, College Station, TX 77843-3135.
3. Manager, Roadside Safety Program, Texas Transportation Institute, College Station, TX 77843-3135.
4. Associate Research Engineer, Texas Transportation Institute, Professor, Dept. of Civil Engineering, Texas A&M Univ., College Station, TX 77843-3136.