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MATAI Fall 2004 Training Conference

MATAI Fall 2004 Training Conference. SPL/LT Gary Megge Michigan State Police. Crash Data Retrieval System (CDR) Made by Vetronix Corporation. General Motors Sensing and Diagnostic Module (SDM) Ford Restraint Control Module (RCM). A Case Study. Scene Photographs. Scene Photographs.

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MATAI Fall 2004 Training Conference

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  1. MATAI Fall 2004 Training Conference SPL/LT Gary Megge Michigan State Police

  2. Crash Data Retrieval System(CDR)Made by Vetronix Corporation

  3. General MotorsSensing and Diagnostic Module(SDM)FordRestraint Control Module(RCM)

  4. A Case Study

  5. Scene Photographs

  6. Scene Photographs

  7. Scene Photographs

  8. Problems? • 1, Speed of tractor trailer #1? • 2, Speed of tractor trailer #2? • 3, Speed of pick-up? • 4, Skids, Momentum, Crush, Other???? • 5, Overall crash dynamics?

  9. Options? • 1, Witness statements? • 2, Drivers statements? • 3, Minimal skid marks? • 4, Information from tractor data recorders? • 5, Information from pick-up SDM? • 6, All of the above……

  10. Results • 1, Witnesses and drivers stated that all the involved vehicles were slowing for a construction zone when the crash occurred. • 2, Driver of pick-up stated the he had slowed down, with the brakes applied, to approximately 20mph just prior to the crash. He then observed the tractor trailer behind him and accelerated to avoid being struck.

  11. Results Continued • 3, There was no indication that excessive speed, by any of the drivers, was a factor in the crash. • 4, Vehicle inspections indicated that the brake lights were working on all of the involved vehicles. • 5, The “at fault” driver in the crash was killed as a result of the crash. • 6, No criminal prosecution, “case closed”.

  12. Conclusions • 1, The SDM/RCM data should not be used in a criminal or civil court as stand alone evidence. • 2, The data obtained is an excellent source of information, especially when your traditional reconstruction is verified by the downloaded data. • 3, All downloaded data, as well as the information in the data limitations section, should be carefully analyzed.

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