1. Schnell, T., Benefits of Luminance Above Threshold Levels, Final Report submitted to 3M Corporation, Traffic Controls Material Division, St. Paul, MN, 2009
2. Schnell, T., Keller M., Cornwall R. & Walwanis-Nelson M. (2008, January). Tools for Virtual Environment Fidelity Design Guidance: Quality of Training Effectiveness Assessment (QTEA) Tool. Final Report N00014-07-M-0345-0001AC, Office of Naval Research, ONR Code 00.
3. Schnell T., Pilot Helmet Sensor Instrumentation, Final Report submitted to Rockwell Collins, Advanced Technology Center, 400 Collins Rd. NE, Cedar Rapids, IA 52498, December, 2008
4. Schnell, T., Real-Time Driver Workload and Stress Assessment Using Physiological Measurements, Final Report submitted to Denso, Nagoya, Japan, September, 2008
5. Debaillon C., Carlson P., Hawkins, E., He Y., Schnell T, Aktan F., (2008), “Updates to Research on Recommended Minimum Levels for Pavement Marking Retroreflectivity to Meet Driver Night Visibility Needs”, FHWA Report Number FHWA-HRT-07-059, Office of Safety R & D, Turner-Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, VA 22101-2296
6. Schnell T., Wenger J., “Advanced Media/Portable Media; Low Cost Synthetic Vision System”, NASA Final Report for Contract NNL04AA22G, Langley Research Center, Hampton, VA, 2007
7. Etherington T., Schnell T., Keller M., “Spatial Orientation Enhancement System (SOES)”, Final report for SOES Contract FA8650-04-2-6411, Prepared for Rockwell Collins, 400 Collins Rd. NE, Cedar Rapids, IA 52498, 2006
8. Schnell T., Etherington T., “SE-Vision Final Report, Commercial Pilot Simulator Study”, Final report for SE-Vision Contract F33615-03-2-6317, Prepared for Rockwell Collins, 400 Collins Rd. NE, Cedar Rapids, IA 52498, 2005
9. Schnell T., Etherington T., “SE-Vision Final Report, Flight Test of Military Formats”, Final report for SE-Vision Contract F33615-03-2-6317, Prepared for Rockwell Collins, 400 Collins Rd. NE, Cedar Rapids, IA 52498, 2005
10. Schnell T., Etherington T., “Spatial Orientation Enhancement System (SOES)”, Final Report for SOES Contract FA8650-04-2-6411, In review, Prepared for Rockwell Collins, 400 Collins Rd. NE, Cedar Rapids, IA 52498, 2006
11. Schnell, T., Lemos, K., Keller, M., Yang, S., „Synthetic Vision Systems, Optimum Display Characteristics“, Final Report, NASA Langley Research Center, Aviation Safety Program, Hampton, VA, 2003
12. Schnell T., Aktan F., Lee Yi-Ching, “Wet Weather Visibility of Pavement Markings”, Final Report, FHWA Number Assignment Pending, Federal Highway Administration, Turner-Fairbank Highway Research Center, McLean, VA, 2003
13. Schnell, T., Lemos K., “Terrain Sampling Density and Texture Requirements for Synthetic Vision Systems”, Final Report, Submitted to Rockwell Collins Advanced Technology Center, 400 Collins Rd. NE, Cedar Rapids, IA 52498, 2003
14. Schnell, T., Aktan, F., Ohme, P., Hogsett, J. “Enhancing Pavement Marking Visibility for Older Drivers”, Final Report submitted to the Iowa Department of Transportation, 800 Lincoln Way, Ames, Iowa 50010, 2003
15. Rockwell Collins SVIS Team, “Synthetic Vision Information System Report of Test at Eagle County Regional Airport”, NASA SVS Phase II final Report, January 31, 2002, Rockwell Collins, Cedar Rapids, Iowa
16. Zwahlen, HT, Schnell, T, “Evaluation Of Ground Mounted Diagrammatic Entrance Ramp Approach Signs”, FHWA/OH-2000/018, Final Technical Report, Ohio Department of Transportation
17. Schnell T., Aktan F., Mohror J., “Evaluation Of Traffic Flow Analysis Tools Applied To Work Zones Based On Flow Data Collected In The Field”, Final Report FHWA/HWA-2001/08, Ohio Department of Transportation
18. Schnell T., Merchant S., Kwon, Y., “Assessing Pilot Performance in Flight Decks Equipped with Synthetic Vision Information Systems”, Rockwell Collins Advanced Technology Center Final Report, Cedar Rapids, Iowa, 2001
19. Schnell, T., "Legibility Optimization of Uppercase Alphanumeric Text for Displaying Messages in Traffic Applications", 1998, Ph.D. Dissertation, Department of Industrial and Manufacturing Systems Engineering, Ohio University, Athens, Ohio 45701-2979, 471 pages.
20. Zwahlen, H. T., and Schnell, T., "Evaluation of Temporary Pavement Marking Systems for Resurfacing Zones", July 1996, Final Report FHWA/OH-96/015, Prepared for Ohio Department of Transportation in Cooperation with US DOT, Columbus, Ohio.
21. Schnell, T., "The Development of a PC Based Pavement Marking Visibility Evaluation Model", 1994, Master Thesis, Department of Industrial Engineering, Ohio University, Athens, Ohio 45701-2979, 189 pages.
22. Schnell, T., "Expertensystem fuer Serielle Kommunikation (Expert System for Serial Communication)", 1992, Diploma Project, Department of Electrical Engineering, Institute of Technology of the State of Bern, Bern, Switzerland, 225 pages.