Accident Reconstruction Newsletter
Volume 9, Issue 9-10 SEP/OCT 2007
In This Issue
Bodily Injury Locations in Fatally Injured Motorcycle Riders
Job Opening
NHTSA Releases 2006 Crash Data Files
Police Car Accidents - Evidence Spoliation Risk Alert
Motorcycle Helmet Use in 2007 - Overall Results
AR Books from C Charles Thomas
Pre-Crash Scenario Typology for Crash Avoidance Research

Bodily Injury Locations in Fatally Injured Motorcycle Riders


Motorcycle Injury Graph

A study of linked death certificate information reveals that among fatally injured motorcycle riders, there is a direct correlation between a head injury and helmet use. In fact, while about 35 percent of the helmeted motorcyclists had a head injury, about 51 percent of the unhelmeted motorcyclists had a head injury.


 
CDR Train the Trainer Certification Course
 
CDR Train the Trainer Certification Course 
 
Each year at the CDR User's Conference Collision Safety Institute holds the CDR Train the Trainer Certification Course.
 
This CDR Technician Course Train-the-Trainer Certification course is an opportunity for qualified and experienced CDR Data Analysts to train others to the Technician Level. This course provides qualified individuals with an opportunity to teach the one day CDR Technician Course; the prerequisite to the CDR Data Analyst's Certification Course. It does not qualify one to teach the CDR Data Analyst's Certification Course.
 
 
JOB OPENING

Forensic Engineering Consulting Firm in Abington, Pennsylvania is looking to hire a full-time mechanical or
civil engineer to join our accident investigation and reconstruction team.

 Responsibilities include:

  • Site and Vehicle Investigation and Documentation
  • Use of High-Definition Surveying and TOPCON equipment for field and vehicle investigations (will train)
  • Engineering Analysis - Reconstruction of Vehicular Collisions
  • Use of Physics-based Collision Recon Programs
  • Drafting Reports
    Client Contact
  • 24-Hour Response Team Member

Ideal candidate will be looking for a career in the forensic engineering area, have 2-5 years experience with an engineering firm, strong analytical skills, excellent verbal and written communication skills and the ability and long-term interest in acting as an expert witness at depositions and trials. Knowledge of computer programs including PC-Crash, PC-Rect and EDVAP very beneficial, but will train.

Excellent benefits including medical, vacation and pension.

Please submit curriculum vitae, salary request and references to J. Falk at jsf@forensicDJS.com.

Please, no calls.

NHTSA Releases 2006 Crash Data Files
 
NHTSA has made available on it's website the crash data files for 2006. Included in this release are the 2006 Fatality Analysis Reporting System (FARS) file, the final 2005 Fatality Analysis Reporting System file and the 2006 National Automotive Sampling System General Estimates System (NASS GES) File. The FARS files are a census of all motor vehicle crashes that resulted in a fatality within 30 days of the crash. The NASS GES is a nationally representative sample of the police-reported crashes of all severities, including those that result in a death, injury, or property damage.
 
 

Quick Links
If you have any questions or comments about this newsletter please contact the ARC Network:
 
800-280-7940
 

Greetings!
 
It's hard to believe but 2007 is quickly coming to a close. This year marks the 9th year for the ARC Network! We are very excited to about the growth of this network and what the future brings.
 
The ARC Network is currently working on the following:
 
1. ARC Network Member's Only Section: We are working with an outside company to help build a better membership area for the members of the ARC Network. We have completely redesigned the vehicle specifications program and are finishing up importing the data for the motorcycle specs database. In order to make all this run on the ARC Network web site, we have to upgrade all the applications to ASP.NET 2.0. We are currently migrating the entire site to this new platform. After it has been fully tested it will go live on the Internet. We are projecting January or February 2008. Once ASP.NET 2.0 is in place and working we have other development projects that will improve all areas of the ARC Network from the Events Calendar to an interactive library!
 
2. CDR Chrysler and Ford Pre-Sale: The ARC Network's sister company, I Got Hit LLC is working closely with Bosch to effectively launch the next big CDR update. The next update will include coverage from 2004-2008 select Chrysler vehicles and access to the Powertrain Control Module in select Ford vehicles. The estimated ship date for this release is December 15, 2007. This update will be shipped based on the date ordered, so the first people to place their order will be the first people whose order will be processed and shipped. If you would like to place a pre-sale order, please visit:
 
3. CDR User's Conference 2008: The other sister company of the ARC Network, Collision Publishing LLC, along with the ARC Network and Collision Safety Institute is working on the details of the upcoming annual CDR User's Conference. This is a 3-day conference that will cover many areas of the Bosch Crash Data Retrieval System. Subject matter experts will come and speak about many different areas of this technology. The conference will also present real-world case studies and a hands-on workshop dealing with downloading Ford PCM data! With the upcoming 3.0 release from Bosch, this is one conference you really shouldn't miss if you are looking to stay current with the CDR technology. Save $200 by registering by Dec. 19, 2007.
 
4. Collision Magazine: Collision Publishing LLC is putting the finishing touches on the next issue of Collision: The International Compendium for Crash Research. The next issue (Vol. 2, Issue 2) will be mailed in December 2007. Please be aware there could be delays in the mail as we approach the busy holiday season. This next issue will be our biggest issue to date and will also include the 2007 ARC-CSI Crash Conference data DVD. Some of the articles included in this issue are:
  • Validating Speed Analysis Calculations with Crash Test Data. By C.R. Lewis
  • Night-Time Pedestrian Collision Reconstruction Factors. By Daniel Melcher
  • Reconstruction and Analysis of Steering-Induced, On-Road, Untripped SUV Rollover Tests (Part 2). by Lawrence Wilson
  • Implications of Symmetric Sine-Based Collision Pulse Models on Force-Deflection Characteristics: (Part 1). By Jae Singh
  • Detailed Comparison of Vehicle Speed and the Speed Recorded by an SDM. By Timothy Reust
  • General Motors Data Recording: A Visual Approach to the Logic Functions. By William Messerschmidt
  • Effects of Sample Rates on Accelerometer Based Skid Testing and Unit Comparison. By Jon Northrup
  • Plus a lot more!

If you would like to subscribe to Collision, please visit www.collisionpublishing.com or ask your local accident reconstruction organization if the are an industry partner with Collision for a discounted subscription.

Thank you for supporting the ARC Network and subscribing to the Accident Reconstruction Newsletter.
Scott Baker
President
ARC Network LLC
 
Richard Ruth CDR 
Police Car Accidents - Evidence Spoliation Risk Alert
By Richard Ruth
Ruth Consulting
 
If one of your Crown Victoria Police Interceptor vehicles has an accident with a civilian vehicle and people are injured, you naturally want to know the facts as to what happened. You may not yet be aware that 2005 and later Crown Victoria vehicles have an second, much more powerful event data recorder than the Restraint Control Modules found in 2001-2004 Crown Victorias. It is located in the Powertrain Control Module (PCM). If airbags or seat belt pretensioners deployed, the vehicle is designed to store vehicle speed, brake on/off, ABS on/off, accelerator pedal position, and other parameters for 20 seconds before the crash and 5 seconds after the crash at 0.2 seconds intervals. The vehicle is designed to set a data "locking" signal when airbags or seat belt pretensioners deploy. Under some circumstances, such as electrical short circuits caused by crash damage, or complete power loss in the vehicle, the locking signal may not get set. You need to be aware that in the absence of a lock signal that the recorder is designed to continuously overwrite itself, and after 25 seconds of power on without a lock signal, the data relevant to the event is overwritten and lost. If airbags do not deploy, but the key is turned off in less than 25 seconds of the event, there will be speed/brake/accelerator information relevant to the event that can still be retrieved.
 
 
NHTSAMotorcycle Helmet Use in 2007 - Overall Results

Donna Glassbrenner, Ph.D., and Tony Jianqiang Ye

Use of DOT-compliant helmets rose 7 percentage points to 58 percent in 2007. This result is from the National Occupant Protection Use Survey (NOPUS), which provides the only nationwide probability-based observed data on helmet use in the United States. The NOPUS is conducted by the National Center for Statistics and Analysis of the National Highway Traffic Safety Administration.

C. Charles Thomas

Publisher LTD

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Pre-Crash Scenario Typology for Crash Avoidance Research
 
This report defines and statistically describes a new pre-crash scenario typology for light vehicles (i.e., passenger car, sports utility vehicle, minivan, van, and light pickup truck) based on the 2004 General Estimates System (GES) crash database. This new typology consists of pre-crash scenarios that depict vehicle movements and dynamics as well as the critical event occurring immediately prior to a crash. The goal of this typology is to establish a common vehicle safety research foundation for public and private organizations, which will allow researchers to determine which traffic safety issues should be of first priority to investigate and to develop concomitant crash avoidance systems. Its main objectives are to identify all common pre-crash scenarios of all police-reported crashes involving at least one light vehicle; quantify their severity in terms of frequency of occurrence, economic cost, and functional years lost; portray each scenario by crash contributing factors and circumstances in terms of the driving environment, driver, and vehicle; and provide nationally representative crash statistics that can be annually updated using GES and the Crashworthiness Data System (CDS) crash databases.
 
 
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