Safety Effects of the 65 Mph Speed Limit and the Mandatory Seat Belt Law
Author: Paul H. Wright
Publisher:
Published: 1991
Total Pages: 144
ISBN-13:
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Author: Paul H. Wright
Publisher:
Published: 1991
Total Pages: 144
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul Hamblen Wright
Publisher:
Published: 1989
Total Pages:
ISBN-13:
DOWNLOAD EBOOKAuthor: Jack D. Jernigan
Publisher:
Published: 1994
Total Pages: 48
ISBN-13:
DOWNLOAD EBOOKIn April of 1987, Congress passed the Surface Transportation and Uniform Relocation Assistance Act (STURAA), which permitted states to raise their maximum speed limit on rural interstate highways to 65 mph. Virginia's 65 mph speed limit went into effect on July 1, 1988, for passenger vehicles and on July 1, 1989, for commercial buses. This is the final report in a series to examine the 65 mph speed limit in Virginia, and it summarizes Virginia's experience with the 65 mph speed limit from 1989 through 1992. Following the implementation of the 65 mph speed limit, average and 85th percentile speeds increased on Virginia's rural interstates, and fatal crashes and fatalities increased significantly. On Virginia's urban interstates, on which the speed limit remained at 55 mph, there was a smaller increase in average and 85th percentile speeds, but there was a slight, nonsignificant decrease in fatal crashes and fatalities. Absolute numbers of fatal crashes and fatalities were used in this analysis rather than rates because traffic volume increases on interstates are averaged for both rural and urban systems. Thus, if volumes increased more on rural interstates, comparisons of relative rates would be misleading. The data in this report clearly show that speeds, fatal crashes, and fatalities increased on Virginia's rural interstates after the implementation of the 65 mph speed limit. However, these increases appear to have plateaued in the last two years of the study. Reports from other states and from national studies reflect a general increase in travel speeds and fatal crashes on rural interstates, but there is conflicting evidence on whether the 65 mph speed limit is the cause. Likewise, there is conflicting evidence concerning whether differential speed limits for trucks and cars have had an impact on the frequency of crashes in states maintaining such differential limits.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Publisher:
Published: 2000
Total Pages: 1842
ISBN-13:
DOWNLOAD EBOOKAuthor: Patrick S. McCarthy
Publisher:
Published: 1988
Total Pages: 72
ISBN-13:
DOWNLOAD EBOOKAuthor: United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation
Publisher:
Published: 1987
Total Pages: 880
ISBN-13:
DOWNLOAD EBOOKAuthor: Association for the Advancement of Automotive Medicine. Conference
Publisher:
Published: 1991
Total Pages: 552
ISBN-13:
DOWNLOAD EBOOKAuthor: Laura Langbein
Publisher: Routledge
Published: 2014-12-18
Total Pages: 264
ISBN-13: 1317461630
DOWNLOAD EBOOKThis readable and comprehensive text is designed to equip students and practitioners with the statistical skills needed to meet government standards regarding public program evaluation. Even those with little statistical training will find the explanations clear, with many illustrative examples, case studies, and applications. Far more than a cookbook of statistical techniques, the book begins with chapters on the overall context for successful program evaluations, and carefully explains statistical methods--and threats to internal and statistical validity--that correspond to each evaluation design. Laura Langbein then presents a variety of methods for program analysis, and advise readers on how to select the mix of methods most appropriate for the issues they deal with-- always balancing methodology with the need for generality, the size of the evaluator's budget, the availability of data, and the need for quick results.
Author: Clark Radatz
Publisher:
Published: 1987
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKAuthor: Susan P. Baker
Publisher: Oxford University Press, USA
Published: 1992
Total Pages: 367
ISBN-13: 0195061942
DOWNLOAD EBOOKCauses of injuries are explored. Injuries are also analyzed on the basis of intent. Injuries are illustrated by age, race, sex, geographic area, urban/rural residence, and per capita income.