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Toward understanding the recent large reductions in U.S. road fatalities
From 2005 to 2009, U.S. road fatalities dropped by 22% (from 43,510 to 33,963). A reduction of such magnitude over such a short time has not occurred since road-safety statistics were first kept (starting in 1913), except for the reductions during World War II. The present study was performed to...
Drivers on unfamiliar roads and traffic crashes
This study was designed to investigate whether there is an increased risk of traffic crashes in the U.S. for out-of-state drivers-those drivers whose driver license was not issued by the state in which they were involved in a crash. Two analyses were performed. In the first analysis, we examined...
Survival in fatal road crashes body mass index, gender, and safety belt use.
Background: This study evaluated the associations of body mass index (BMI), gender, and use of safety belts with the survival of drivers involved in fatal road crashes. Method: The census data of all U.S. fatal crashes that did not involve pedestrians, bicyclists, or motorcyclists were examined for...
Recent major improvements in road safety in the U.S changes in the frequency of crashes or the severity of the outcome of crashes?.
This study introduced a new methodology for evaluating the relative contributions of the changes in the frequency of crashes and the severity of the outcome of crashes to the recent large improvement in road safety in the U.S. The approach is based on a parallel examination of changes in variables...
An analysis of U.S. road fatalities per population changes by age from 1958 to 2008.
Objective: This article presents a time-series analysis of changes in road safety in the United States from a public-health point of view. Method: A 50-year period was examined, from 1958 to 2008. The emphasis was on the changes by decades in fatalities per population across different age groups....
Toward understanding on-road interactions of male and female drivers
Objective: This study examined gender effects in six geometric scenarios of 2-vehicle crashes in which an involved driver could potentially ascertain the gender of the other driver prior to the crash. Method: The actual frequencies of different combinations of the involved male and female drivers...
Toward understanding on-road interactions between male and female drivers
This study examined gender effects in six geometric scenarios of two-vehicle crashes in which an involved driver could potentially ascertain the gender of the other driver prior to the crash. The actual frequencies of different combinations of the involved male and female drivers in these crash...
U.S. road fatalities per population changes by age from 1958 to 2008.
This report presents a time-series analysis of changes in road safety in the U.S. from the public-health point of view. A 50-year period is examined, from 1958 to 2008. The emphasis is on the changes by decades in fatalities per population across different age groups. The main findings are as...
A preliminary analysis of traffic crashes by out-of-state drivers
Objective: This study was designed to investigate the relationship between the involvement of out-of-state drivers in fatal crashes and each US state-s fatality rate per distance driven. Method: Two analyses were performed. In the first analysis, we examined the percentages of out-of-state drivers...
Road safety in New York and Los Angeles U.S. megacities compared with the nation.
This study examined road safety in the two U.S. megacities, New York and Los Angeles. Patterns of fatal and all crashes in these megacities were compared with those for the entire U.S. (Also included were data for the two respective states, New York and California.) The data on fatal crashes came...

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