McHenry Forum - Crash Reconstruction & Simulation

Sept 2020 a couple references/links added

Recently a thread on INCR included some comments related to McHenry Software and small software companies in general. Below was our response: Thanks for the comment in the INCR REC-TEC topic (note INCR you have to be a member for that link to work) of 'McHenry is a name etched in the history of cras...

Sept 2020:Added to the first part of the thread a NOTE...see the first thread above for the NOTE

Q: Two comments received: I’d certainly be interested in mapping the illumination levels at that intersection. I am not so sure that PRT would have been significantly different, but video is notoriously insufficient in capturing illumination properly too. That video is from an after market dashcam t...

I don't know why PC-CRASH pretend their 3D "multi-body" model is something independently created when in reality it is the ATB program. Quick comparison of the ATB program vs pc-crash Multi-body simulation first note that ATB is: ATB general purpose lumped mass program.png And here is a co...

From another article i see the Uber driver was charged with negligent homicide Vehicular homicide is a crime that involves the death of a person other than the driver as a result of either criminally negligent or murderous operation of a motor vehicle. In cases of criminal negligence, the defendant ...

Q: Do the occupants of a car experience delta v based maximum engagement during the crash or based post impact speed of the vehicle (roll out). This example is a rear end crash. A: first point is the car/vehicle experiences a DeltaV/Impact speed change then the occupant experience a impact speed ch...

Q: I’m looking at a low speed case in which there is only information on the target vehicle (photos & repair estimate). As far as the bullet vehicle, there are only a couple of bad photographs available and the extent of the damage is difficult to determine. The other expert in the case used the...

Nov 23 2020: i have recently combined two items which probably are the reason for the police charging the driver in the crash: The camera in the uber vehicle was low grade and so the video in no way represents the lighting condition at the time of the crash The area of the crash was extremely well ...

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