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ICJI > Traffic Safety > Traffic Safety Training > "Technical Crash Investigation" (II of III) "Technical Crash Investigation" (II of III)

August 18 – August 29th, 2008
Indiana State Police Post # 52
Indianapolis, Indiana

CONTACT
Mr. Dan Jeffries
Indiana Criminal Justice Institute
(317) 232-0021
djeffries@cji.in.gov

Course Description

Building upon the theories and techniques learned in IPTM’s At-Scene Traffic Crash/Traffic Homicide Investigation course, this class will delve into the advanced concepts of traffic crash investigations.

More complex vehicle dynamics like acceleration/deceleration, factor, rate and airborne situations will be explored.  You will learn to estimate speeds from falls, vaults, and flips and the calculation of kinetic energy and linear momentum.  You’ll also learn to evaluate vehicle lamps, tires, and damage to help determine vehicle behaviors during the collision.   

Much of the coursework will be spent using acceleration/deceleration factors and perception/reaction times to determine time/distance relationships for colliding vehicles. 

Prerequisite

You must have completed IPTM’s At-Scene Traffic Crash/Traffic Homicide Investigation course or its equivalent prior to attending this class.

Topics include:

  • Speed estimates from kinetic energy, skid marks, scuffmarks, and airborne situations
  • Vehicle dynamics and motion
  • Time, distance, and motion equations
  • Conservation of momentum equations
  • Center of mass calculation
  • Vehicle damage analysis including thrust, overlap and collapse
  • Vehicle lamp examination
  • Tire damage evaluation
  • Use of photographs, video recording and computer images
  • Vector sum analysis