The Traffic Accident Reconstruction Origin -ARnews-


Intentional Door Opening

David Roberts (der@nmrs.com)
Wed, 6 Sep 2000 09:08:32 -0600 (MDT)

Anyone know of a study of automobile occupants that intentionally open doors while the vehicle is still moving, fall out or jump out and get injured or killed?
David Roberts
der@nmrs.com


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if">(80 Kb. GIF of acceleration data), each investigator was encouraged to look at the evidence and make his subjective observations about what remained. After the tests were completed, the investigators returned to the classroom and pooled their observations.

FINDINGS


CONCLUSION
An accident involving an ABS equipped vehicle calls for a change in the way the scene is processed. In the past, evidence of hard braking (skid marks) were usually obvious and could be treated well down the priority list as long term evidence. The same driver action on an ABS equipped vehicle leaves evidence that is subtle and short lived.

The on scene procedure suggested by the group was to first check the front tires for the telltale speckling. These marks should be obvious, and will guide the investigator to look for more. The search for the ABS scuff mark should be made as soon as possible after the collision. Methods for preserving and identifying this evidence include good lighting, low viewpoint, and limiting roadway use in the area of the suspected scuff mark.

In the past, an understanding of driver action and vehicle movement was frequently based upon skid mark evidence. The tests done by this group indicate that with a bit of effort, the same information is also available from an ABS scuff mark.

Note: A 5 minute Law Enforcement training video is available for $25.

Contact:
Palm Beach County Sheriff's Office
Vehicle Homicide Investigations Unit
3228 Gun Club Road
West Palm Beach, FL. 33406


Data

Notes:

45 Kb gif- ABS scuff on S-1 Asphalt
abs01.txt
abs01.prn
42 Kb gif- Skid on S-1 Asphalt
skid01.txt
skid01.prn

41 Kb gif- ABS scuff on dry Genite
abs02.txt
abs02.prn
44 Kb gif- Skid on dry Genite
skid02.txt
skid02.prn

58 Kb gif- Skid and ABS scuff on wet Genite
abs03.txt
abs03.prn
skid03.txt
skid03.prn

77 Kb gif- Skid and ABS scuff on old S-1 Asphalt
abs04.txt
abs04.prn
skid04.txt
skid04.prn

46 Kb gif- ABS scuff on Compacted Rock
abs05.txt
abs05.prn
56 Kb gif- Skid on Compacted Rock
skid05.txt
skid05.prn

Concrete old dry - no photos available
abs06.txt
abs06.prn
skid06.txt
skid06.prn

78 Kb gif- Skid and ABS scuff on dry Grass
abs07.txt
abs07.prn
skid07.txt
skid07.prn

54 Kb gif- ABS scuff on old FC-2 Asphalt
abs08.txt
abs08.prn
58 Kb gif- Skid on old FC-2 Asphalt
skid08.txt
skid08.prn

There was no test #9

84 Kb gif- ABS scuff on new S-1 Asphalt
abs10.txt
abs10.prn
84 Kb gif- Skid on new S-1 Asphalt
skid10.txt
skid10.prn


Gulfstream Technical Accident Investigator Contributors

Florida Highway Patrol: Inv. John Cataldo, Inv Scott Ratliff

Delray Beach Police Dept: Ofc Richard Jacobson, Ofc Robert Bradley, Ofc Robert Bradley

Jupiter Police Dept: Sgt. Sam Miller, Ofc David Schultz

Martin County Sheriffs Office: Sgt Bob Wright, Sgt Steele Ritter, D/S Ray Goughnour

Palm Beach County Sheriffs Office: Sgt Kerry Fleming, Sgt Dave Johnson, Inv. Bill Wright, Inv. Sal D'Alessandro, Inv. John Prieschl, Inv. Russ Pruitt, Inv. Larry Colagiovanni, Inv. Dave Rander, Inv. Al Steinmetz, Inv. Bob Brown

Palm Beach County State Attorneys Office: Ellen Roberts

Palm Beach County Engineering and Public Works: Tanya McConnell PE

Palm Beach Police Dept: Ofc Ron Frick, Ofc Kurt Burfield, Ofc Richard Howe

Royal Palm Beach Police Dept: Ofc Roger Shoeman

Zook Moore & Associates: Richard Ryabik PE

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