Research
Teaching and Course Work Development
Mr. Stopper currently teaches Heavy Vehicle Crash Reconstruction for the Northwestern University Center for Public Safety in Evanston, IL.
While a law enforcement officer he was selected as one of five regional and statewide instructors for Commercial Motor Vehicle Enforcement
under the authority of the USDOT Bureau of Motor Carrier Safety, now the Federal Motor Carrier Safety Administration (FMCSA). His duties
included coordination with and conducting motor carrier enforcement training under the direction of and with the USDOT/BMCS and the Virginia
State Police Motor Carrier Enforcement Division.
Mr. Stopper has previously taught and developed CMV Collision Investigation courses at the following institutions:
- University of North Florida’s Institute of Police Technology and Management (IPTM), Jacksonville, FL;
- Texas A&M University System – Texas Engineering and Extension Service (TEEX) College Station/Riverside Campus, TX;
- Royal Canadian Mounted Police, Regina, Canada;
- Ontario Provincial Police at the O.P.P. College, Orillia ONT;
- South Carolina Criminal Justice Academy & South Carolina Transport Police, Columbia, SC
Articles and Publications
Air Brake Failure Analysis Paper
- Stopper, David A. (2005). Air Brake Failure - Automatic Slack Adjuster (ASA) - Air Brake Chamber Failure Analysis. Stopper & Associates, LLC.
Air Brakes Failure Analysis Presentation
- Stopper, David A. Air Brakes Failure Analysis Presentation. Stopper & Associates, LLC.
U.S. DOT - Bridge Formula Weights
- Federal Highway Administration (1994). Bridge Formula Weights. U.S. Department of Transportation.
CMV Acceleration Tests from Collision Magazine
- Stopper, D. A., Darnell, P. D., Voeglie, C. C. (2010). Determining A "Best Effort" Heavy Truck Acceleration Rate Based On Time, Weight & Distance. Collision, Volume 5 (2), ppgs 43-47.
Considering Truck Weight
- Stopper, David A. Consideration Of Statutory Truck Weight Limits When Reconstructing Commercial Motor Vehicle Collisions. Stopper & Associates, LLC.
Driver's Log-DDEC Daily Engine Usage
- Stopper, David A. Examination Of Detriot Diesel Electonic Control -DDEC ECM- Daily Activity & Daily Engine Usage Reports Evaluation Of Driver's Hours Of Service Logs.
Heavy Air Braked Vehicle
- Stopper, David A. (2000) Heavy Air Braked Vehicle Accident Reconstruction. Stopper & Associates, LLC.
NTSB Moutainburg Accident Report
- National Transportation Safety Board (2002). Highway Accident Report - Collision Between Truck-Tractor Semitrailer and School Bus Near Moutainburg, Arkansas on May 31, 2001. National Transportation Safety Board .
The Effects Of Air Pressure On Push Rod Stroke
- National Transportation Safety Board (2002). Highway Accident Report - Collision Between Truck-Tractor Semitrailer and School Bus Near Moutainburg, Arkansas on May 31, 2001. National Transportation Safety Board .