McHenry Forum - Crash Reconstruction & Simulation

clarified the original book Ray relied on when formulating HVOSM, SMAC, etc and checked when SAE adopted SAE coordinate conventions.

Question from another forum: Q: Does anyone have experience of a high speed ~90 -95 mph frontal impact in which the front seat occupants may have been already been in very close proximity to the steering wheel and/or dashboard when the airbags fired?. eg speed high enough to be fatal despite airbags...

Another important warning posted to the NAPARS Facebook page (thanks Wade): Right up there with ' don't put yer feet up on the dash! " From NHTSA comes a warning: Consumer Alert: Don’t Buy or Use Steering Wheel Decorative Emblem Decals Decals may detach in a crash and cause serious injury The N...

From INCR forum : Q: looking for any references on bicycle speed/velocity, specifically looking for child or 12 year old male A: See Accident Reconstruction Journal (ARJ) 26-4 If you join NAPARS you get access to all ARJs! for a summary article on the topic, for 11-13 year olds, it was 9.9mph (repor...

Topic changed to NOW AVAILABLE and includes details, more to come soon!

posted separately but also included here More confirmation of the findings of the study we participated in back in the 90s, see Effects of Speed on Accident Frequency? Following recently posted on Linkedin: Global Road Safety Partnership In Australia, the speed limit on Melbourne’s rural and outer f...

More confirmation of the findings of the study we participated in back in the 90s, see Effects of Speed on Accident Frequency? Following recently posted on Linkedin: Global Road Safety Partnership In Australia, the speed limit on Melbourne’s rural and outer freeway network was increased from 100 km/...

May 10, 2024: Update 4.6.1 is uploaded! This lists some of the many enhancements Coming soon. Posted up the update. will be documenting things here so stay tuned! ____________________________________________ Items from 4.5.5 Refinement of NEW Sequential Inputs We recently added Sequential Input Tabl...

That presentation: Using EDR Delta V in Traffic Crash Reconstruction by Rick Ruth We don't know him personally but have heard from colleagues he's a great teacher, presenter and source for useful information. Here is his website Ruth Consulting And here is one of the SAE classes he teached: Applying...

Note we haven't updated this so added 2024 as expected update time for the update to the book!