Commercial Motor Vehicle Crashes in Nebraska, 1996-1999
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Commercial Motor Vehicle Crashes in Nebraska, 1996-1999. Nebraska Crash Outcome Data Evaluation System (CODES). Dan Christensen Ming Qu Prabhakar Dhungana. Nebraska Health and Human Services System. Definition.

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Nebraska Crash Outcome Data Evaluation System (CODES)

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Nebraska crash outcome data evaluation system codes

Commercial Motor Vehicle Crashes in Nebraska, 1996-1999

Nebraska Crash Outcome Data Evaluation System (CODES)

Dan Christensen

Ming Qu

Prabhakar Dhungana

Nebraska Health and Human Services System


Definition

Definition

  • CODES DBS: a database resulting from linking motor vehicle crash records (Crash), Emergency Medical Services records (EMS), Hospital Discharge records (HDD) and Death Certificates.


Definition cont d

Definition (cont’d)

  • A Commercial Motor Vehicle (CMV): Any truck having at least 2 axles and 6 tires, any vehicle displaying a hazardous materials placard, or any bus designed to transport 16 or more passengers including the driver

  • Current: A CMV is designated as any vehicle weighing more than 10,000 pounds, and/or designed to transport 16 or more passengers including the driver.


Definition con d

Definition (Con’d)

  • Large Truck: Any truck having a gross vehicle weight rating greater than 10,000 pounds.

  • Passenger Vehicle: Any passenger car, light truck, or van weighing 10,000 pounds or less.


Introduction

Introduction

  • More than 5,000 deaths occur each year in CMV crashes, accounting for about 13% of all the traffic deaths in the U.S.

  • Another 142, 000 people were injured in crashes involving CMVs in 1999

  • In 1999, the estimated average cost for CMV crashes was more than $75,000

  • Reducing CMV crashes is a national highway safety priority


Purpose

Purpose

  • To understand the pattern and nature of crashes involving CMVs in Nebraska

  • To establish a baseline for CMV crashes surveillance in Nebraska


Method

Method

  • Descriptive analysis using four years of Nebraska CODES data (1996 to 1999)

  • Compare injury severity, hospital charges, and various pre-crash factors between crashes involving CMVs and crashes not involving CMVs

  • Examine the differences in demographics and behaviors of drivers for two-vehicle crashes (one CMV and one passenger vehicle)


Results

Results

  • Of the 170,669 motor vehicle crashes that occurred from 1996 to 1999 in Nebraska, 10,939 (6.4%) involved CMVs.

  • These CMVs involved-crashes accounted for:

  • 6.0% (26,867) of all persons involved in crashes

  • 6.1% (4,140) of all crash injuries

  • 18.4% (225) of all crash deaths

  • 9.9% ($7,907,361) of all motor vehicle crash related hospital charges


Nebraska crash outcome data evaluation system codes

Table 3


Nebraska crash outcome data evaluation system codes

Map 1

N=8,200


Nebraska crash outcome data evaluation system codes

Figure 6


Nebraska crash outcome data evaluation system codes

PDO

Injury

Fatal


Nebraska crash outcome data evaluation system codes

Figure 8


Conclusions

Conclusions

  • Crashes involving CMVs tended to be severe

  • PV occupants were more likely to be injured or killed when involved in crashes with CMVs

  • PV Drivers were more likely responsible for crashes involving CMVs

  • CMV drivers were found to be impaired much less often than PV drivers in both injury and fatal crashes


Recommendations

Recommendations

  • Vehicle Modifications

    • Modify the structure of CMVs to make them less likely to inflict injuries in collisions with other vehicles

    • Make trucks more visible during night

    • Improve truck braking system


Nebraska crash outcome data evaluation system codes

  • Enforcement

    • Improve enforcement of existing laws against unsafe driving acts in the vicinity of CMVs.

    • Enforcing following distance and vehicle speed


Nebraska crash outcome data evaluation system codes

  • Education and Training

    • Increase passenger driver education about the differences between the performance of CMVs and passenger vehicles.

    • Increase CMV driver education about passenger vehicle driver behaviors

    • Develop CMV drivers training programs focused on defensive driving technique based on PV drivers’ unsafe driving habit.

    • Train law enforcement officers about the hazards of unsafe driving acts in the vicinity of CMVs.


Acknowledgement

Acknowledgement

  • NHTSA

  • Nebraska Office of Highway Safety

  • Nebraska CODES Advisory Committee


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