Estimating Motor Carrier Management Information System Crash File Underreporting from Carrier Records

Blower, Daniel; University of Michigan. Transportation Research Institute

doi:10.21949/1502548

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Estimating Motor Carrier Management Information System Crash File Underreporting from Carrier Records

2017-08-01
By Blower, Daniel

[PDF-556.01 KB]

English

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Details:

Creators:

Blower, Daniel
Corporate Creators:

University of Michigan. Transportation Research Institute
Corporate Contributors:

United States. Federal Motor Carrier Safety Administration. Office of Analysis, Research and Technology
Subject/TRT Terms:

[+]

Accident Records Accident Reports Collisions Data And Information Technology FMCSA Highways MCMIS Motor Carrier Management Information System Motor Carriers Safety And Human Factors Traffic Accidents Truck Accidents Truck Lines
Publication/ Report Number:

FMCSA-RRR-16-025
DOI:

https://doi.org/10.21949/1502548
Resource Type:

Tech Report
Geographical Coverage:

United States
TRIS Online Accession Number:

01654595
Corporate Publisher:

United States. Federal Motor Carrier Safety Administration. Office of Analysis, Research, and Technology
Abstract:

This FMCSA-sponsored research investigated the claim that motor carriers have a substantial number of crashes in their own records that are not contained in the Motor Carrier Management Information System (MCMIS) crash file. Based on the results of that investigation, this report presents estimates of the degree of underreporting to the file. Crash records were obtained from a set of motor carriers who identified crashes that, in their judgment, met the reporting thresholds for the MCMIS crash file. Carrier records were matched to the MCMIS crash file to determine how many had been reported to MCMIS. Unmatched records were then searched for in State crash records to determine how many had a crash report filed. The remaining carrier records (not found in the MCMIS file or State crash files) were used to determine the number of remaining crashes that qualified for reporting to the MCMIS file but went unreported. The study found that, for the carriers studied, the MCMIS crash file contained about 66 percent of their crashes that met the MCMIS reporting criteria. About 25 percent of the crashes carriers identified as reportable did not meet the MCMIS reporting criteria. In addition, the carrier records were missing about 6 percent of MCMIS-reportable crashes altogether. An estimated 56 percent of the crashes that should have been but were not reported to MCMIS likely did not have a police report filed. The other 44 percent were not uploaded because the vehicle was miscoded in the original police report as a light vehicle, the U.S. Department of Transportation (USDOT) number was missing or incorrect in the police report, or errors in the State data system resulted in the case being missed.
Format:

PDF
Funding:

DTMC75-14-R-00039
Collection(s):

Federal Motor Carrier Safety Administration
Main Document Checksum:

[+]

urn:sha256:d1017df9c6cadc3e0298a5eedd17652a607ddbd5b028deb03a759e7ac692a310
Download URL:

https://rosap.ntl.bts.gov/view/dot/32508/dot_32508_DS1.pdf
File Type:

No Additional Files

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Estimating Motor Carrier Management Information System Crash File Underreporting from Carrier Records

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