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Author : Paul L. Olson
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.L/5 (7 download)
Download or read book Effect of the 65-mph Speed Limit on Vehicle Speeds in Michigan written by Paul L. Olson and published by . This book was released on 1988 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander C. Wagenaar
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.L/5 (7 download)
Download or read book THE 65 MPH SPEED LIMIT IN MICHIGAN: EFFECTS ON INJURY AND DEATH written by Alexander C. Wagenaar and published by . This book was released on 1989 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fredrick M. Streff, Robert H. Schults.
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.L/5 (8 download)
Download or read book UMTRI-90-37- THE 65-MPH SPEED LIMIT IN MICHIGAN: A SECOND YEAR ANALYSIS OF EFFECTS ON CRASHES AND CRASH CASUALITIES. written by Fredrick M. Streff, Robert H. Schults. and published by . This book was released on 1990 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fredrick M. Streff
Publisher :
ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (228 download)
Download or read book The 65-MPH Speed Limit in Michigan written by Fredrick M. Streff and published by . This book was released on 1990 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : JAMES O'DAY
Publisher :
ISBN 13 :
Total Pages : 68 pages
Book Rating : 4.L/5 (3 download)
Download or read book THE EFFECTS OF THE ENERGY CRISIS AND 55 MPH SPEED LIMIT IN MICHIGAN written by JAMES O'DAY and published by . This book was released on 1975 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Patrick S. McCarthy
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.3/5 (97 download)
Download or read book Highway Safety and the 65 MPH Maximum Speed Limit written by Patrick S. McCarthy and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.8/5 (45 download)
Download or read book What Every Driver Must Know written by and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (911 download)
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 : David L. Harkey
Publisher :
ISBN 13 :
Total Pages : 78 pages
Book Rating : 4.3/5 (555 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.E/5 ( download)
Download or read book Michigan Omnibus State Safety Survey written by and published by . This book was released on 1989 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Alexander C. Wagenaar, Frederick M. Streff and Robert H. Schultz
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.L/5 (7 download)
Download or read book EVALUATING THE 65 MPH SPEED LIMIT: RESEARCH DESIGN AND BASELINE DATA written by Alexander C. Wagenaar, Frederick M. Streff and Robert H. Schultz and published by . This book was released on 1988 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.3/5 (555 download)
Download or read book Report to Congress on the Effects of the 65 Mph Speed Limit During 1987 written by and published by . This book was released on 1989 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : R. Srinivasan
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.3/5 (91 download)
Download or read book Characteristics of Traffic Flow and Safety in 55 and 65 MPH Speed Limits: Literature Review and Suggestions for Future Research written by R. Srinivasan and published by . This book was released on 2002 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Test of Variable Speed Limits in Work Zones (in Michigan) written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The project is the result of a joint public-private venture led by the Michigan Department of Transportation (MDOT) and includes the participation of the Michigan Department of State Police (MSP), Michigan State University (MSU), and NES Worksafe (Worksafe). International Road Dynamics (IRD) was also actively involved in technology development and deployment through Worksafe. The system that was tested and deployed experienced problems that might be expected of a prototype as opposed to a fully tested and refined system. The most important modifications include: better communications with individual trailers and between trailers, better and more flexible vehicle sensors, the ability to monitor (or use) individual vehicle speeds, better and more flexible capability in establishing the algorithms for setting limits, and easier to follow procedures and rules for using the system. As evaluated, the system suffers from a lack of real portability (due to the reasons just mentioned) which limit its ease of use in the often-restricted work zone environment. The system had relatively minor impacts in the work zone in which it was used. As it turned out, the topography of the area and the existence of the ramps and bridges associated with a freeway-to-freeway interchange resulted in significant restrictions being placed on the speed limits that could be used. In addition, the presence of the ramps and the work activity resulted in relatively low speeds under many conditions. These limitations notwithstanding, there were positive effects on average speeds through the VSL deployment area (increased) and travel time (decreased). Effects on the 85th percentile speed and speed variance were either undetectable or inconsistent. The percentage of vehicles exceeding certain thresholds (e.g., 60 mph) did, however, decrease when the system was in operation. Apart from the traffic-related MOEs, the presence of enforcement personnel in the deployment area appeared to have no additional or interactive effect. Finally, an anecdotal review of the crashes in the area showed that most crashes were rear-end collisions and none appeared to be directly associated with the deployment of the system; the system certainly did not seem to create additional safety problems in the deployment areas. Despite the paucity of usable data, it is also seems clear that VSL systems will have different applicability in different types of work zone situations. The conclusion is drawn that VSL systems will have more utility in longer and "simpler" work zones. For example, long zones with short areas of actual work. These limitations notwithstanding, it was also seen that the VSL system can present far more credible information to the motorist, responding to both day-to-day changes in congestion as well as significant changes as motorists go through a given zone.
Author : Douglas J. Mace
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.3/5 (91 download)
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:
Author : M. Freedman
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (173 download)
Download or read book The Effect of the 65 Mph Speed Limit on Speeds in Three States written by M. Freedman and published by . This book was released on 1990 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy J. Gates
Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (91 download)
Download or read book Evaluating Outcomes of Raising Speed Limits on High Speed Non-freeways written by Timothy J. Gates and published by . This book was released on 2015 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research was to assist in determining the potential impacts of implementing a proposed 65 mph speed limit on non-freeways in Michigan. Consideration was given to a broad range of performance measures, including operating speeds, traffic crashes and crash severity, infrastructure costs, fuel consumption, and travel times. Specifically, a prioritization strategy was developed to identify candidate MDOT non-freeway road segments possessing lower safety risks and potential infrastructure costs associated with raising the speed limit from 55 to 65 mph. Ultimately, approximately 747 miles of undivided and 26 miles of divided 55 mph non-freeways were identified as lower risk candidates, representing approximately one-eighth of the MDOT systemwide mileage posted at 55 mph. An economic analysis of the anticipated costs and benefits associated with the proposed speed limit increase was performed for these lower risk candidate segments, in addition to a systemwide estimate. As the travel time savings were expected to outweigh the fuel consumption costs, it was necessary to determine if these net operational benefits outweighed the expected infrastructure upgrade costs and increased crash costs. For roadways possessing horizontal and/or vertical alignments that are not compliant with a 65 mph speed limit, an unfavorable benefit/cost ratio would likely result due to the excessive infrastructure costs incurred during 3R (resurfacing, restoration, rehabilitation) or 4R (reconstruction) projects. Crashes were expected to increase for all implementation scenarios, with a particular increase in the risk of fatal and incapacitating injuries. Due to the substantially large infrastructure costs, application of the 65 mph speed limit is specifically not recommended for non-freeway segments requiring horizontal or vertical realignment to achieve design speed compliance. Even for segments where compliance with the increased design speed is maintained, careful consideration must be given to the potential safety impacts particularly to fatal and injury crashes - that may result after increasing the speed limit.
