Vehicle Investigations

Hallman Engineering L.L.C.
located in Minnesota (MN) investigates the origin and cause of VEHICLE FIRES in Minnesota, Iowa, Wisconsin, North Dakota, South Dakota and all other states.

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David has performed investigations and assisted with investigations on a wide variety of vehicle and equipment fire investigations.  He has completed fire investigations involving cars and light trucks, heavy trucks, farm equipment, construction equipment, baling equipment, skid loaders, and combines, as well as structure fires reportedly caused by vehicles.  David is a Certified Fire and Explosion Investigator and a Certified Vehicle Fire Investigator through the National Association of Vehicle Fire Investigators (NAFI).  David has also performed and witnessed multiple vehicle test burns.


U.S. Fire Administration's (USFA) Topical Fire Report Series Volume 13, Issue 11 / January 2013

Highway Vehicle Fires (2008-2010)

Findings from this report:

  • Approximately one in seven fires responded to by fire departments across the nation is a highway vehicle fire. This does not include the tens of thousands of fire department responses to highway vehicle accident sites.
  • Unintentional action (32 percent) was the leading cause of highway vehicle fires.
  • Eighty-six percent of highway vehicle fires occurred in passenger vehicles.
  • Sixty-one percent of highway vehicle fires and 35 percent of fatal highway vehicle fires originated in the engine, running gear, or wheel area of the vehicle.
  • The leading factor contributing to the ignition of highway vehicle fires was mechanical failure (44 percent).
  • Insulation around electrical wiring (28 percent) and flammable liquids in the engine area (18 percent) were the most common items first ignited in highway vehicle fires.
  • Fifty-seven percent of fatal vehicle fires were the result of a collision.


Hallman Engineering L.L.C. located in Minnesota (MN) investigates and reconstructs all types of VEHICLE CRASHES in Minnesota, Iowa, Wisconsin, North Dakota, South Dakota and all other states.




David has performed multiple crash investigations and multiple crash related vehicle mechanical investigations on cars, light trucks, medium trucks, buses, motorcycles and bicycles.  He is an active member of the Accident Reconstruction Communications Network (ARC) and has been a member of the ARC-CSI crash crew since 2011.  The crash crew plans and executes instrumented test crashes at the annual ARC-CSI crash conference in Las Vegas.  David has also been a member of the SATAI crash crew since 2013 and participated in crash testing at the 2014 MATAI crash conference in Saint Paul, Minnesota. 

At the 2013 Crash ARC-CSI Crash Conference, David was invited and gave a 90 minute presentation entitled "Differentiating Potentially Causal Pre-Crash Component Damage from Crash Damage".  An expanded version of this presentation was given at the fall 2013 Southwestern Association of Technical Accident Investigators (SATAI) conference in Phoenix, Arizona on September 28, 2013.  At the 2014 CDR Summit in Houston, Texas David gave a presentation entitled "Unique Features of Toyota Gen3 Data" on January 28, 2014.  At the 2014 ARC-CSI Crash Conference, David gave a presentation entitled "Wheel Slip and Its Effect on Reported Vehicle Speed" on June 4, 2014.


NHTSA 2013 Motor Vehicle Crashes Overview

Summary of this report:
  • A statistical projection of traffic fatalities shows that an estimated 32,719 people died in motor vehicle traffic crashes.
  • This represents a decrease of about 3.1 percent as compared to the 33,782 fatalities that occurred in 2012.
  • The percentage change in fatalities has been steadily decreasing since the 12.3% increase from the first quarter of 2012.
  • Traffic fatalities have been steadily declining over the previous six years since reaching a near-term peak in 2005, decreasing by about 26 percent from 2005 to 2011.
  • Preliminary data reported by the Federal Highway Administration (FHWA) shows that vehicle miles traveled (VMT) in 2013 decreased by about 0.1-percent from the 2012 VMT. 
  • The fatality rate, per 100 million VMT, for 2013 decreased to 1.10 fatalities per 100 million VMT, down from 1.14 fatalities per 100 million VMT in 2012

Link to: The Minnesota State Patrol Metro Crash Reconstruction Team

2014 ARC-CSI Crash Conference.

YouTube Video


2015 ARC-CSI CDR Summit.

YouTube Video