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Safety Impacts Of Different Speed Limits On Cars And Trucks Final Report
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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 Safety Impacts of Different Speed Limits on Cars and Trucks by : DL. Harkey
Download or read book Safety Impacts of Different Speed Limits on Cars and Trucks written by DL. Harkey and published by . This book was released on 1994 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Impacts of Different Speed Limits on Cars and Trucks. Final Report by : David L. Harkey
Download or read book Safety Impacts of Different Speed Limits on Cars and Trucks. Final Report written by David L. Harkey and published by . This book was released on 1994 with total page 72 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:
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.
Book Synopsis Impact of Recent Changes in the Highway Safety Environment by : Jane C. Stutts
Download or read book Impact of Recent Changes in the Highway Safety Environment written by Jane C. Stutts and published by . This book was released on 1978 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Impacts and Other Implications of Raised Speed Limits on High-speed Roads by : Kara Kockelman
Download or read book Safety Impacts and Other Implications of Raised Speed Limits on High-speed Roads written by Kara Kockelman and published by . This book was released on 2006 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 303: Safety Impacts and Other Implications of Raised Speed Limits on High-Speed Roads explores the effects of raised speed limits from 55 miles per hour or greater on freeways and non-freeways in rural and urban settings. The effects considered included impacts on safety and operations, as well as socioeconomic and environmental effects. The full report is available on the TRB website as NCHRP Web-Only Document 90.
Book Synopsis The Safety Impact of the 65 Mph Speed Limit - a Time Series Analysis. Final Grant Report by : R. C. Pfefer
Download or read book The Safety Impact of the 65 Mph Speed Limit - a Time Series Analysis. Final Grant Report written by R. C. Pfefer and published by . This book was released on 1989 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis highway safety effects of the energy crisis on u.s. toll roads -- final report by : kenneth l. campbell and robert e. scott and steven e. tolkin
Download or read book highway safety effects of the energy crisis on u.s. toll roads -- final report written by kenneth l. campbell and robert e. scott and steven e. tolkin and published by . This book was released on 1975 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluating the Impacts of Speed Limit Policy Alternatives by :
Download or read book Evaluating the Impacts of Speed Limit Policy Alternatives written by and published by . This book was released on 2014 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: As of June 2014, Michigan is one of eight states with a differential speed limit in place on its rural freeways, which sets a maximum speed of 70 mph for passenger vehicles and 60 mph for trucks and buses. In select urban environments, these speed limits are both reduced to a uniform 55 mph limit. Legislation was introduced in early 2014 that proposed increases to these speed limits. In order to ascertain the potential impacts of these proposed speed limit increases, this research examined a broad range of traffic safety, operational, environmental, and economic data. This study involved a comprehensive state-of-the-art review of prior research on the relationships between traffic speed, safety, and crash risk. A survey was conducted of state agency practices with respect to speed limit establishment and another survey was conducted to obtain feedback on proposed changes from the trucking industry. National fatality data were collected and analyzed to ascertain the effects of speed limit policies on traffic fatalities, with specific emphasis on maximum speed limits and the effects of uniform vs. differential limits on urban and rural interstates. Further analyses were conducted at the disaggregate level to examine crash trends on Michigan freeways. These results were supplemented by the analysis of field speed data that were collected on freeways in Michigan, Indiana, and Ohio. Differences in mean speeds, 85th percentile speeds, and the standard deviation in speeds among passenger cars, trucks, and buses were examined with respect to the speed limit policies in place at each of 160 roadway locations. Based upon the results of the fatality and speed data analyses, a benefit-cost analysis of the proposed speed limit change was conducted in consideration of both road user and agency costs. Recommendations were presented to aid in decision-making related to speed limit policies.
Author :American Association of State Highway and Transportation Officials. Operating Subcommittee on Traffic Engineering Publisher : ISBN 13 : Total Pages :66 pages Book Rating :4.:/5 (1 download)
Book Synopsis Effects of the 55 Mph Speed Limit by : American Association of State Highway and Transportation Officials. Operating Subcommittee on Traffic Engineering
Download or read book Effects of the 55 Mph Speed Limit written by American Association of State Highway and Transportation Officials. Operating Subcommittee on Traffic Engineering and published by . This book was released on 1974 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Technical Assistance Report 17-01-TA-SS by : Haggai Davis
Download or read book Technical Assistance Report 17-01-TA-SS written by Haggai Davis and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The National Highway Traffic Safety Administration (NHTSA) reported that 37,461 people died in 2016 on US roads, marking the second year in a row that the number has increased [1]. Many transportation-related agencies have adopted a “Vision Zero” or “Towards Zero Deaths” campaign aiming to eliminate the need for that statistic. Speed can often play a role in fatalities, so setting the proper speed limit for roadways is important in saving lives. American speed limits have a complicated history over the past 50 years, which hinders researchers’ ability to look at much longer stretches of data and draw conclusions about determining the best speed limit strategy. From 1973 to 1987, the maximum speed limit was 55 MPH. After that, Congress raised the allowable limit to 65 MPH. It was not until 1995 that states had full discretion over setting an appropriate limit. Some states raised the speed limit for all vehicles equally – a uniform speed limit (USL). Others raised speeds for trucks less than that of cars – a differential speed limit (DSL). On the surface, the benefit of a DSL seems intuitive, lowering the speeds for big trucks would reduce the severity of accidents. However, it also has the effect of increasing total variance in speed which increases the number of accidents. This report aims to explore the literature published about these issues and to inform decision makers about the factors to be weighed when considering DSL versus USL. It was prepared in response to a request in the 2017 session of the Louisiana House of Representatives where the Louisiana Department of Transportation and Development (DOTD) was asked to “study the safety and operational impacts of differential speed limits on interstate highways” (House Concurrent Resolution 112). Thus, the purpose of this study is to inform the Louisiana Legislature about the documented benefits and costs of a differential speed limit for passenger cars versus larger vehicles specifically with regards to the topics of Safety, Mobility and Operations, Fuel Consumption and Emissions, and Truck Determination as outlined in HCR 112."--Introduction.
Book Synopsis The Effect of Increased Speed Limits in the Post-NMSL Era by : United States. National Highway Traffic Safety Administration
Download or read book The Effect of Increased Speed Limits in the Post-NMSL Era written by United States. National Highway Traffic Safety Administration and published by . This book was released on 1998 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis National Maximum Speed Limit and Highway Safety Program Regional Workshops by : R. H. Sostkowski
Download or read book National Maximum Speed Limit and Highway Safety Program Regional Workshops written by R. H. Sostkowski and published by . This book was released on 1979 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1992 by :
Download or read book FHWA Nationally Coordinated Program of Highway Research, Development, and Technology. Annual Progress Report. Fiscal Year 1992 written by and published by . This book was released on 1992 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Interim Report on the Safety Consequences of Raising the Speed Limit on Rural Interstate Highways by :
Download or read book Interim Report on the Safety Consequences of Raising the Speed Limit on Rural Interstate Highways written by and published by . This book was released on 1988 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Safety Impacts of Speed Limiter Device Installations on Commercial Trucks and Buses by : Richard Bishop
Download or read book Safety Impacts of Speed Limiter Device Installations on Commercial Trucks and Buses written by Richard Bishop and published by Transportation Research Board. This book was released on 2008 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Research sponsored by the Federal Motor Carrier Safety Administration."
