January 2015                                                                                                                                                 Issue 3
CTSRC Crash News Update
My name is Chuck Grasso and I am a retired Police Sergeant now working for the University of Connecticut Transportation Safety Research Center as a Crash Data Liaison to Law Enforcement. I will be bringing you a newsletter on both the progress of the new MMUCC Accident Report, as well as crash investigation news.
Data Quality
The new MMUCC PR-1 has been being used exclusively for several weeks and the report accuracy is steadily improving. The following items are some of the more common issues that are occurring. 

In each newsletter we are going to spotlight some areas that need more clarification to enhance the quality of the data recorded in the reports. In this issue we will review Vehicle Damage, Sequence of Events, Weather Conditions, Most Harmful Event, Ejection Status & Supervisory Review.
VehicleVehicle Damage
This section describes damage to a vehicle that was involved in the collision.
  • If the vehicle is damaged in the collision the investigator must use the clock diagram to select the are of the vehicle that was damaged.
  • If a vehicle is towed due to damage, the investigator cannot select "00: None" for damaged areas.
SequenceSequence of Events
This section requires the investigator to describe the events leading up to the collision.
  • Enter the events of the crash specific to this vehicle as they occurred in chronological order.
  • Select which one of these events was the most harmful.
  • You may enter up to four events per vehicle. If there are more than four events, record the four most significant events.
  • All boxes must be coded, i.e., if less than four events are selected the other event boxes should be coded as "88: Not Applicable".
WeatjerWeather Conditions
This section refers to the weather conditions in the area at the time of the collision.
  • The weather conditions do not have to be a factor in the collision but still must be documented.
  • The investigator must enter the appropriate code for weather conditions in the area at the time of the crash.
  • The investigator should never leave the selection blank or use the code "88: Not Applicable" when completing this section.
HarmfulMost Harmful Event
This section requires the investigator to describe the event causing first the injury, and in a non-injury collision, the most damaging event.
  • The section labeled "Most Harmful Event" can never be left blank or completed with "88: Not Applicable".
EjectionEjection Status
Occupant protection systems prevent or mitigate ejections to various degrees.
  • A person cannot be considered "ejected" from a vehicle such as a motorcycle or rear of a pickup truck.
  • The category of Ejection from a motorcycle or bed of a pickup truck should be categorized as "88: Not Applicable".
SupervisorySupervisory Review
A reminder to approving supervisors to check the officers' reports to ensure accuracy and completeness. While the edit and validation check work excellently, it cannot be relied upon to ensure a 100% accurate report.
Contact Us
If you have any questions regarding this newsletter or the new MMUCC PR-1 please contact:

Chuck Grasso
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Crash Spotlight
A disabled vehicle was in the process of being loaded on a flatbed wrecker and was completely on the bed of the wrecker, being secured. A second vehicle came along and struck the flatbed and then the vehicle on the flatbed while the bed was still angled downward. The colliding vehicle eventually landed on the flatbed itself. 

Is this a three or two or three vehicle collision?

The answer: Two vehicle collision. This is because once the disabled vehicle was on the flatbed it became "cargo".

The information regarding the vehicle that was begin secured on the flatbed should be documented in the narrative portion of the report.

Thank you CSP for sharing this unusual collision.