Overview:

This course builds upon IPTM’s Event Data Recorder (EDR) Use in Traffic Crash Reconstruction - Level I by teaching you how to apply mathematical concepts to your EDR-based reconstructions.

We will begin by reviewing the math and physics concepts necessary to analyze EDR data in more complex non-central collisions. Topics such as the Law of Cosines; the Law of Sines; momentum; closing velocity; and change in velocity relationships will be discussed in detail. You will learn how each of these can be used in your reconstruction.

Actual EDR reports from a variety of collisions will be utilized to show you how to determine all the values necessary for a complete reconstruction. Projects and problem sets have been designed to reinforce the materials presented during lectures and will provide you with the tools you will need to complete actual reconstructions.

Course Topics:

• Solving momentum problems with EDR data when some data elements, such as departure speeds, departure angles, etc. are missing (aka “triangle momentum”)
• How restitution affects your momentum-based reconstruction
• The effects of rotation on delta-V and closing speed (Effective Mass Ratio)
• The effects of external forces on momentum-reconstructions
• Adjusting EDR delta-V for ACMs not located at the center-of-mass

Prerequisite(s):

You must have successfully completed IPTM’s Event Data Recorder Use in Traffic Crash Reconstruction - Level I and Traffic Crash Reconstruction courses or their equivalent. 

What to Bring (Required):

• Laptop computer or tablet to view class materials
• Calculator with trig and square-root functions

ACTAR CEUs:

40 ACTAR credits will be available (application pending), and the cost for the application will be covered by IATAI.

Additional Information:

Refunds, minus a $50 processing fee, will be made if the cancelation occurs more than 30 days prior to the course.  Substitutions of attendees can be made with prior notice to an IATAI board member.

If paying by check or invoice, approval is needed from the IATAI Treasurer.  Please Contact Brad Brachear at treasurer@iatai.org.  All checks must be received before March 8th, 2027.