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A Status Report On The Effects Of The 65 Mph Speed Limit On Virginias Rural Interstate Highway System
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Book Synopsis A Status Report on the Effects of the 65 Mph Speed Limit on Virginia's Rural Interstate Highway System by : Jack D. Jernigan
Download or read book A Status Report on the Effects of the 65 Mph Speed Limit on Virginia's Rural Interstate Highway System written by Jack D. Jernigan and published by . This book was released on 1989 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1987, the Secretary of Transportation and Public Safety created a task force to study the potential effects of raising the speed limit on rural interstate highways in Virginia. In its 1988 session, the Virginia General Assembly passed legislation to increase the speed limit on rural interstate highways to 65 mph for passenger vehicles, but the 55 mph limit was retained for buses and large trucks. After implementation of the higher speed limit on July 1, 1988, the Secretary reconvened the task force to design a study to determine the effects of the changed speed limit. The Virginia Transportation Research Council was again asked to serve a the staff for the task force. The preliminary data provided in this report represent only 5 months of experience with the 65 mph speed limit and are presented for information only. Any conclusions drawn from these data would be inappropriate and perhaps incorrect. After the speed limit for cars was increased by 10 mph, the average and 85th percentile speeds traveled by all vehicles on the rural interstate system increased by 3 mph, to 63 mph and 68 mph, respectively. The average and 85th percentile speeds traveled by trucks and buses, for which the speed limit remained at 55 mph, decreased slightly. Between July 1 and November 30, 1988, there were 44 fatalities in 35 fatal crashes on rural interstate highways in Virginia. This was a 76 percent increase over the 25 fatalities and a 52 percent increase over the 23 fatal crashes for the same time period in 1987. In the states that increased the speed limit, there was a 41 percent increase overall in the number of fatalities, but in states that did not increase the speed limit, there was a 54 percent increase in fatalities--higher than that noted for states that increased the speed limit. Many of the crashes that accounted for the increase in the number of fatal crashes on rural interstate highways occurred on I-81, and all of the multiple-fatality crashes occurred on either I-81 or I-95. In comparison with 1987, the number of fatal crashes in 1988 included 5 more involving vehicles that ran off the road, 4 more involving tractor trailers, and 3 more involving pedestrians. In October 1988, there was an abnormally high number of fatal crashes and fatalities on Virginia's rural interstate highways, but no patterns were found to explain this 1-month abnormality. Because there are not sufficient data to determine the reasons for the increases in fatal crashes and fatalities, data will be gathered over a 5- year period to determine the effect of the changed speed limit on Virginia's rural interstate highways.
Book Synopsis The Impact of the 65 MPH Speed Limit on Virginia's Rural Interstate Highways Through 1990 by : Cheryl Lynn
Download or read book The Impact of the 65 MPH Speed Limit on Virginia's Rural Interstate Highways Through 1990 written by Cheryl Lynn and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 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 (rural interstates) to 65 mph. Virginia's 65 mph speed limit went into effect July 1, 1988, for passenger vehicles and on July 1, 1989, for commercial buses. This report is the fourth in a series of reports to examine the 65 mph speed limit in Virginia and summarizes 30 months of experience with the 65 mph speed limit. 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 not a significant increase in fatal crashes or fatalities. National data show a substantial increase in rural interstate fatalities in states that increased the rural interstate speed limit to 65 mph and a decrease in states that maintained a 55 mph speed limit. 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 data do not reflect causation. It is possible that factors other than the change in the speed limit such as changes in traffic volumes, trip patterns, or trip purposes-are responsible for part or all of the increase in fatal crashes and fatalities. Causative issues will be addressed in the final report in this series, to be published in 1993.
Author :United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials Publisher : ISBN 13 : Total Pages :130 pages Book Rating :4.0/5 ( download)
Book Synopsis Research Results of the Speed Limit Increase by : United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials
Download or read book Research Results of the Speed Limit Increase written by United States. Congress. House. Committee on Science, Space, and Technology. Subcommittee on Transportation, Aviation, and Materials and published by . This book was released on 1989 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of the 65 MPH Speed Limit on Travel Speeds and Related Crashes. Final Report by : Douglas J. Mace
Download or read book Effect of the 65 MPH Speed Limit on Travel Speeds and Related Crashes. Final Report written by Douglas J. Mace and published by . This book was released on 1991 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Impact of the 65 Mph Speed Limit on Virginia's Rural Interstate Highways, 1989-1992 by : Jack D. Jernigan
Download or read book Impact of the 65 Mph Speed Limit on Virginia's Rural Interstate Highways, 1989-1992 written by Jack D. Jernigan and published by . This book was released on 1994 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 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.
Book Synopsis Report of the Virginia Transportation Research Council for the ... Biennium by :
Download or read book Report of the Virginia Transportation Research Council for the ... Biennium written by and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Journal of Transportation and Statistics by :
Download or read book Journal of Transportation and Statistics written by and published by . This book was released on 2000 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Status Report to the Superintendent of Public Instruction on a Study of Optimal School Bus Speed Limits on Virginia Highways by :
Download or read book A Status Report to the Superintendent of Public Instruction on a Study of Optimal School Bus Speed Limits on Virginia Highways written by and published by . This book was released on 1988 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study was prompted by the fact that on Virginia's rural interstate highways there is a three-tiered speed limit: 45 mph for school buses, 55 mph for other buses and trucks, and 65 mph for passenger vehicles. On the urban interstate system, school buses are restricted to 45 mph, but other traffic has a 55 mph speed limit. Further, the speed limit for school buses on roads other than interstate highways is 35 mph or the minimum speed limit, whichever is greater, or 45 mph if the school bus neither loads nor discharges passengers between the points of origin and destination. The study will examine the safety characteristics of the current multi-tiered speed limits and how these characteristics relate to the operation of school buses. A survey of other states revealed that 17 states other than Virginia had statutes creating speed limits for school buses lower than those for other vehicles. Generally, these states restricted the speeds of school buses to 55 mph. Three other states have administrative regulations that restrict school buses to 55 mph. However, 19 states have no special laws or regulations governing school bus speed limits. Data acquisition is still in progress for the remaining states. Research is continuing on this project, and a final report on the subject is scheduled to be completed in September 1989.
Book Synopsis An Annotated Bibliography of Virginia Transportation Research Council Writings, July 1966--June 1989 by : Harry T. Craft
Download or read book An Annotated Bibliography of Virginia Transportation Research Council Writings, July 1966--June 1989 written by Harry T. Craft and published by . This book was released on 1991 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recherche en Matière D'économie Des Transports by :
Download or read book Recherche en Matière D'économie Des Transports written by and published by . This book was released on 1993 with total page 878 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Checklist of State Publications by : Library of Congress. Exchange and Gift Division
Download or read book Monthly Checklist of State Publications written by Library of Congress. Exchange and Gift Division and published by . This book was released on 1989 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: An annual index to the monographs appears early in the following year.
Book Synopsis Annual Report by : United States. Department of Transportation
Download or read book Annual Report written by United States. Department of Transportation and published by . This book was released on with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Safety Impact of the 65 Mph Speed Limit by : David B. Brown
Download or read book The Safety Impact of the 65 Mph Speed Limit written by David B. Brown and published by . This book was released on 1989 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Impacts of Different Speed Limits on Cars and Trucks by : David L. Harkey
Download or read book Safety Impacts of Different Speed Limits on Cars and Trucks written by David L. Harkey and published by . This book was released on 1994 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to determine whether differential or uniform speed limits are more beneficial to transportation safety and traffic operations on Interstate highways. The approach to achieving this objective was to examine speed and accident data from States employing both types of limits. Speed data were collected in 12 States at rural and urban locations representing all speed limits currently established on the Interstate highway system for cars/trucks, i.e., 55/55 mi/h (89/89 km/h), 65/55 mi/h (105/89 km/h), 65/60 mi/h (105/97 km/h), and 65/65 mi/h (105/105 km/h). Accident data were obtained from nine States which were geographically distributed across the country and representative of all rural Interstate speed limits currently established. For the speed data collected, a number of measures of effectiveness (MOEs) were examined including mean speed, speed variance, compliance, and speed distribution measures. For the accident data collected, types of crashes were examined (e.g., rear-end) along with vehicle type involvement (e.g., car-into-truck) and crash severity. This final report summarizes the effects of uniform and differential speed limits on transportation safety and traffic operations as determined by the examination of speed and accident data.
Book Synopsis Public Administration Series--Bibliography by :
Download or read book Public Administration Series--Bibliography written by and published by . This book was released on 1989-05 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing Speed written by and published by Transportation Research Board. This book was released on 1998 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB Special Report 254 - Managing Speed: Review of Current Practices for Setting and Enforcing Speed Limits reviews practices for setting and enforcing speed limits on all types of roads and provides guidance to state and local governments on appropriate methods of setting speed limits and related enforcement strategies. Following an executive summary, the report is presented in six chapters and five appendices.
Download or read book Traffic Safety written by and published by . This book was released on 1988 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
