McHenry Forum - Crash Reconstruction & Simulation

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/...

Mar 13, 2024: Update 4.5.5 is uploaded! This lists some of the many enhancements Refinement of NEW Sequential Inputs We recently added Sequential Input Tables to permit direct copy/paste of EDR data as inputs fot msmac3D simulations. We also enhanced the notices and messaging to clarify how these ta...

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!

We're on the road this week and just saw your question: First, Coefficient of Restitution (COR) has nothing to do with closing speed. COR would need to be considered in the calculation of the ' impact speed change '. The equation you presented also has gamma which you specified as the ' effective ma...

They're at it again! Just got this notice from a licensee that Norton blocking our installation program sometimes clicking on the FILE INSIGHT button can provide an option to STOP the BLOCK! Damn Norton.png Please try these steps and/or search the web to see how to unblock we digitally sign our inst...

Regenerative braking in electric cars is a great way to save your brakes! Having driven a Tesla 3 for many years i know i rarely use the brakes. Saw this paper posted up so reposting link to SAE Quantifying the Deceleration of Various Electric Vehicles Utilizing Regenerative Braking Vigil, C., Kaaya...

Recently got an email from a colleague who consulted on a case and we got a thank you email which ended with: "I believe it was the right decision. Unfortunately, there is no winner in this case." [/b] To which we waxed philosophically in our response which we repeat here: Crash reconstruc...