McHenry Forum - Crash Reconstruction & Simulation

Some additional resources on the subject: From Consumer Reports: NHTSA witholds Cell Phone driving dangers Documents: Department of Transportation's National Highway Traffic Safety Administration The following body of research, conducted by the Department of Transportation and completed in 2003, has...

Be sure to also see the 2nd half of the 60 Minutes:Eyewitness, Part 2"So how accurate is eyewitness testimony? As Lesley Stahl found out firsthand, memory is malleable and can easily be influenced and corrupted".

Check out the YouTube videos: [media]ttps://www.youtube.com/watch?v=trJocyjCBzo&[/media] Handheld film of the actual stunt from the James Bond movie http://www.youtube.com/watch?v=iX5ZZd_CMzs& Original 1970's computer graphics of the hvosm simulation ramp design/design Additional information...

August 17th, 2009: I sometimes stay in North Raleigh, NC over the weekend and drive back my offices in Cary, NC via US 50/Creedmore Road. The road is a busy roadway with 2 lanes in each direction and a center dividing median. There are lights every mile or so. And every day I witness vehicles weavin...

This is some additional information on item: (6) above "There may also be a side-slap secondary contact between vehicles (like during intersection collisions) where after the initial contact of the front corners the vehicles 'slap' sides. This obviously must be considered in any momentum soluti...

This is some additional information on item: (6) above "There may also be a side-slap which obviously must be considered in the exchange of momentum and obviously does not occur in an instant". There's something about sideslaps! Rusty Haight sent us some information on the 2007 NYSTARS sid...

Interesting article from Popular Mechanics on forensics:CSI Myths:The Shaky Science Behind Forensics
The critque does not include any accident reconstruction techniques which are based on scientific applications of Newton's Laws

it's OK to be demur when testifying! ...from http://www.ca10.uscourts.gov/opinions/05/05-6262.pdf If judicial modesty is an admirable trait, what about expert witness modesty? A unanimous three-judge panel of the U.S. Court of Appeals for the Tenth Circuit issued a decision that resolves an issue t...

A recent email from SAE: TO: ALL SAE ACCIDENT INVESTIGATION AND RECONSTRUCTION PRACTICES CMTE MEMBERS This is to inform you that J1674 " Early Acquisition and Preservation of Information in a Motor Vehicle Accident " has been published. DESCRIPTION: SAE J1674 is 13 pages. Price is $61 ($48...

some additional comments/responses I posted in response to characterizing a collision event simply as the Accel ( Total DeltaV/total DeltaT): DeltaV/DeltaT gives you only the average acceleration of a collision event (and requires an assumption of the collision duration) It doesn't tell you about th...