Download or read book Evaluation of 2006 Idaho Crash Data Reported to the MCMIS Crash File written by Paul Eric Green and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. The earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines the factors that are associated with reporting rates for the state of Idaho. MCMIS Crash File records were matched to the Idaho Crash file to determine the nature and extent of underreporting. Overall, it appears that Idaho is reporting 72.9 percent of crash involvements that should be reported to the MCMIS Crash file. Reporting rates vary by crash severity and vehicle type. Overall, more than 90 percent of fatal and injured/transported involvements are reported, but the rate drops to 60.7 percent for crashes that are reportable based on the towed and disabled criterion. Furthermore, 86 percent of the unreported cases fall into the towed and disabled category. It appears that injury-related crashes tend to be reported, while those involving no injury are less likely to be reported. Crashes involving large trucks such as tractor-semitrailers or doubles combinations were more likely to be reported than crashes involving small, single-unit trucks or buses. The reporting rate for the state police is 82.0 percent, while the rate for police departments is 55.7 percent.Missing data rates, except for a few variables, are generally low in the MCMIS Crash file. Compatibility between the vehicle configuration and number of fatalities variables in the Idaho Data file and the MCMIS Crash file is generally good.

Download or read book Evaluation of 2006 Georgia Crash Data Reported to the MCMIS Crash File written by Paul Eric Green and published by . This book was released on 2007 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. Earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines factors that are associated with reporting rates for the state of Georgia. MCMIS Crash File records were matched to the Georgia Crash file to determine the nature and extent of underreporting. Overall, it appears that Georgia is reporting 68.1 percent of crash involvements that should be reported to the MCMIS Crash file. Due to instructions in the Georgia Instruction Guide for filling out accident reports, it appears that buses and some other qualifying vehicles such as government and rental vehicles are not being reported. Based on vehicle type, the reporting rate is 73.6 percent for all trucks and 3.1 percent for buses. The reporting rate for tractor semi-trailers is 87.6 percent, but the estimated rate for single unit trucks is 55.4 percent. It also appears that many vehicles classified as panel trucks are not being reported even though GVWR for most of these vehicles exceeds 10,000 pounds.Missing data percentages in the MCMIS Crash File are low for certain variables, but are high for certain others as noted. No vehicles are recorded as hazmat placarded vehicles in the MCMIS Crash file, yet 46 vehicles are coded with hazmat release.

Download or read book Evaluation of California Crash Data Reported to MCMIS Crash File written by Daniel Blower and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Illinois Crash Data Reported to Motor Carrier Management Information System Crash File written by Anne Matteson and published by . This book was released on 2005 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Maryland Crash Data Reported to Motor Carrier Management Information System Crash File written by Paul Eric Green and published by . This book was released on 2006 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: Data quality is also reviewed. The MCMIS file is examined for missing data rates and the Maryland PAR file is compared to the MCMIS Crash file with respect to vehicle type for reportable and matched cases.

Download or read book Evaluation of Washington Crash Data Reported to Motor Carrier Management Information System Crash File written by Daniel Blower and published by . This book was released on 2006 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: to the MCMIS Crash File was significantly incomplete. This report examines the sources of underreporting for the state of Washington.

Download or read book Evaluation of 2007 Texas Crash Data Reported to the MCMIS Crash File written by Daniel Blower and published by . This book was released on 2009 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. This report examines the factors that are associated with reporting rates for the state of Texas. Evaluating Texas data in the MCMIS Crash file presented unique problems. Gaps in the PAR data made difficult to identify vehicles that meet the MCMIS vehicle type criteria with confidence or to cleanly identify crashes meeting the severity threshold. Alternative methods were developed to evaluate reporting indirectly. The result of each method was consistent with the conclusion that Texas reporting is substantially complete. No evidence was found that would tend to show underreporting or overreporting. Missing data rates are low for most variables, and that data reported are consistent. However, it is emphasized that gaps in the Texas data make it impossible to directly measure crash reporting rates.

Download or read book Evaluation of 2005 Arizona Crash Data Reported to the MCMIS Crash File written by Paul Eric Green and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. Earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines factors that are associated with reporting rates for the state of Arizona. MCMIS Crash File records were matched to the Arizona Crash file to determine the nature and extent of underreporting. Overall, it appears that Arizona is reporting 78.2 percent of crash involvements that should be reported to the MCMIS Crash file. Based on crash severity, the reporting rate is 93.8 percent for fatal crashes, 83.4 percent for injured/transported crashes, and 75.6 percent for towed/disabled crashes. It is possible that the number of injured/transported reportable cases is underestimated since the definition was applied in the strict sense using the medical transport variable. The reporting rate for trucks is 77.8 percent, and the rate for buses is 82.5 percent. The reporting rates for the Arizona Highway Patrol, sheriffs offices, and police departments are 82.4 percent, 79.6 percent, and 74.0 percent, respectively. It appears that 66 of the 4,411 reportable cases involved explosion or fire and only 2 of these were not reported. Of the 66 vehicles, 44 involved no injury.Missing data rates are generally low for most variables in the MCMIS Crash file, except in a few instances as noted.

Download or read book Evaluation of 2007 Oklahoma Crash Data Reported to the MCMIS Crash File written by Daniel Frederick Blower and published by . This book was released on 2009 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of Florida Crash Data Reported to MCMIS Crash File written by Daniel Blower and published by . This book was released on 2004 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of 2005 South Dakota Crash Data Reported to the MCMIS Crash File written by Daniel Frederick Blower and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. The earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines the factors that are associated with reporting rates for the state of South Dakota. MCMIS Crash File records were matched to the South Dakota Crash file to determine the nature and extent of underreporting. The South Dakota crash file appears to supply all the information needed to identify cases that qualify for reporting to the MCMIS Crash file. Overall, it appears that South Dakota is reporting 66.4 percent of involvements that should be reported to the MCMIS Crash file. Reporting rates were related to crash severity, with fatal involvements more likely to be reported than less severe crashes, but this difference was not statistically significant because of the small number of cases. Reporting rates also varied by the type of vehicle and the type of investigation agency (highway patrol, county sheriff, or city police).Missing data rates are low for most variables, although were 20.1 percent for driver license class and 67.4 percent for road access. Consistency between data as recorded in the South Dakota file and as reported to the MCMIS Crash file was excellent.

Download or read book patterns of mcmis crash file underreporting in ohio prepared for federal motor carrier safety administration office of data analysis and information systems dtmc75 02 r 00090 task d mcmis crash file evaluation written by daniel blower and anne matteson and published by . This book was released on 2003 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evaluation of 2005 Indiana Crash Data Reported to the MCMIS Crash File written by Paul Eric Green and published by . This book was released on 2007 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. Earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines the factors that are associated with reporting rates for the state of Indiana. MCMIS Crash File records were matched to the Indiana Crash file to determine the nature and extent of underreporting. Overall, it appears that Indiana is reporting 80.5 percent of crash involvements that should be reported to the MCMIS Crash file. Based on crash severity, the reporting rate is 90.3 percent for fatal crashes, 81.9 percent for injured/transported crashes, and 79.6 percent for towed crashes. It appears that at least two different crash report forms are in use in Indiana, resulting in a reported injury severity distribution that differs considerably from those reported in other states. The reporting rate for trucks is 81.0 percent, and the rate for buses is 73.4 percent. The reporting rate for the State Police is 87.6 percent, while the rate for the Indianapolis Police Department is 66.0 percent. It appears that 97 of the 7,193 reportable cases involved explosion or fire and 11 of these were not reported. Of the 97 vehicles, at least 46 involved no injury (7 vehicles unknown).Missing data rates are low for most variables, except as noted. Some inconsistencies between data reported to the MCMIS file and data recorded in the Indiana file were also noted.

Download or read book Revised Ratio of Crash Severities Reportable to the MCMIS Crash File written by Paul Eric Green and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Motor Carrier Management Information System (MCMIS) Crash file has been developed by the Federal Motor Carrier Safety Administration (FMCSA) to serve as a census file of trucks and buses involved in traffic crashes meeting a specific crash severity threshold. Each state is responsible for identifying cases that meet the MCMIS Crash file criteria and reporting the required data through the SafetyNet system. UMTRI has completed a set of evaluations of state reporting and found that reporting rates range from over 80 percent to less than 10. The present report provides a method of predicting, given a known number of fatal involvements, the number of crash involvements a state should be reporting. In each state, the number of fatal involvements is well-known, so all states will start with a known quantity, the number of fatal truck and bus crash involvements. It is then hypothesized that the ratio of reportable crash severities, that is, the ratio of fatal involvements to nonfatal involvements, will apply across all the states.Data from eight states that provide all the information necessary to identify MCMIS-reportable cases were used. A weighted log-linear model is fit to MCMIS data for the eight states that have information recorded for both fatal and nonfatal crashes. The model is then used to estimate the number of nonfatal crashes for a new state in which only the number of fatal crashes is known. Prediction intervals are presented.

Download or read book Evaluation of 2005 Connecticut Crash Data Reported to the MCMIS Crash File written by Daniel Frederick Blower and published by . This book was released on 2007 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is part of a series evaluating the data reported to the Motor Carrier Management Information System (MCMIS) Crash File undertaken by the Center for National Truck and Bus Statistics at the University of Michigan Transportation Research Institute. The earlier studies showed that reporting to the MCMIS Crash File was incomplete. This report examines the factors that are associated with reporting rates for the state of Connecticut. MCMIS Crash File records were matched to the Connecticut Crash file to determine the nature and extent of underreporting. However, because the Connecticut crash file does not include much of the information necessary to identify the complete set of MCMIS-reportable records, a subset of records highly likely to be reportable were identified instead. The reporting rate for this subset was 31.7 percent. For the subset, it appears that fatal involvements are more likely to be reported than nonfatal involvements, and large trucks were more likely to be reported than small trucks or buses.Of the cases that were reported to the MCMIS Crash file, missing data rates are low for almost all variables, although were 100 percent for driver license class. Some inconsistencies between data reported to the MCMIS file and recorded in the Connecticut data were also noted. Vehicle type was inconsistent in about 21 percent of the cases. Other variables that could be compared were inconsistent only in a very small number of cases.

Download or read book Evaluation of 2005 Ohio Crash Data Reported to Motor Carrier Management Information System Crash File written by Paul Eric Green and published by . This book was released on 2006 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Missing data rates are low for most variables, except in a few cases such as driver condition, road access, road trafficway, and Vehicle Identification Number (VIN). Comparison of the vehicle configuration variable between the MCMIS Crash file and the Ohio Crash file is generally good.

Download or read book The Role of Safety Culture in Preventing Commercial Motor Vehicle Crashes written by Jeffrey Short and published by Transportation Research Board. This book was released on 2007 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's Commercial Truck and Bus Safety Synthesis Program (CTBSSP) Synthesis 14: The Role of Safety Culture in Preventing Commercial Motor Vehicle Crashes explores practices on developing and enhancing a culture of safety among commercial motor vehicle drivers. The report also examines suggested steps for increasing a safety culture through a series of best practices.