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Author : John M. Dale
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.:/5 (618 download)
Download or read book Development of Formed-in-place Wet Reflective Pavement Markers written by John M. Dale and published by . This book was released on 1970 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Federal Highway Administration
Publisher :
ISBN 13 :
Total Pages : 434 pages
Book Rating : 4.3/5 ( download)
Download or read book Improved highway design and operation for safety written by United States. Federal Highway Administration and published by . This book was released on 1973 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 512 pages
Book Rating : 4.3/5 ( download)
Download or read book Federally Coordinated Program of Research and Development in Highway Transportation written by and published by . This book was released on 1980 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (555 download)
Download or read book Development of a new low-profile highway striping for wet-night visibility, phase 1 written by and published by . This book was released on 1972 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Craig Lyon
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (93 download)
Download or read book Safety Evaluation of Wet-reflective Pavement Markings written by Craig Lyon and published by . This book was released on 2016 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Federal Highway Administration organized a pooled fund study of 38 States to evaluate low-cost safety strategies as part of its strategic highway safety effort. One of the strategies selected for evaluation was the application of wet-reflective pavement markings. This strategy involves upgrading existing markings from standard marking materials to wet-reflective markings applied as a paint, tape, or thermoplastic material. The purpose was to provide an improved level of retroreflectivity in wet-road conditions. Geometric, traffic, and crash data were obtained for treated freeway sections in Minnesota, North Carolina, and Wisconsin; treated two-lane rural road locations in Minnesota; and treated multilane road sections in Wisconsin. To account for potential selection bias owing to regression-to-the-mean, an Empirical Bayes (EB) before-after analysis was conducted. The analysis also controlled for changes in traffic volumes over time and time trends in crash counts unrelated to the treatment. Intersection-related, snow/slush ice, and animal crashes were excluded from the analysis. For freeways, the combined results for all States indicated reductions in crashes that are statistically significant at the 95-percent confidence level for injury and wet-road crashes, with estimated crash modification factors (CMFs) of 0.881 and 0.861, respectively. For multilane roads, statistically significant reductions were estimated for total crashes (CMF = 0.825), injury crashes (CMF = 0.595), run-off-road crashes (CMF = 0.538), wet-road crashes (CMF = 0.751), and nighttime crashes (CMF = 0.696). For two-lane roads, the sample of crashes was too small to detect an effect with statistical significance for any of the crash types, but there were indications that the treatment had a safety benefit for wet-road crashes. Benefit-cost ratios estimated with conservative cost and service life assumptions were 1.45 for freeways and 5.44 for multilane roads. The results suggest that the treatment -- even with conservative assumptions on cost, service life, and value of a statistical life -- can be cost effective, especially for multilane roads.
Author : Daniel R. Grieser
Publisher :
ISBN 13 :
Total Pages : 76 pages
Book Rating : 4.3/5 (91 download)
Download or read book Development of a New Low-profile Highway Striping for Wet-night Visibility. Phase 1: Feasibility. Final Report written by Daniel R. Grieser and published by . This book was released on 1972 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roger W. McNees
Publisher :
ISBN 13 :
Total Pages : 194 pages
Book Rating : 4.3/5 (555 download)
Download or read book State-of-the-art and Objectives of Reflective Raised Pavement Markers written by Roger W. McNees and published by . This book was released on 1986 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 476 pages
Book Rating : 4.3/5 (555 download)
Download or read book Federally Coordinated Program of Research and Development in Highway Transportation: Improved highway design and operation for safety written by and published by . This book was released on 1973 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Craig Lyon
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (133 download)
Download or read book Safety Evaluation of Wet-reflective Pavement Markings written by Craig Lyon and published by . This book was released on 2016 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ronald Bruce Gibbons
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.3/5 (555 download)
Download or read book Wet Night Visibility of Pavement Markings written by Ronald Bruce Gibbons and published by . This book was released on 2004 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This executive summary describes an investigation into the performance of pavement markings in wet night conditions. The performance of a typical pavement marking will degrade when it gets wet. This is a result of the flooding of the marking optics, thereby reducing retroreflectivity. Several technologies are available to improve wet marking performance. In this project, six technologies were tested using both standard measurement methods and participant evaluations. The results show that two of the marking technologies, raised retroreflective markers and wet retroreflective tape, outperformed the group under all conditions. These markings were also highly accepted by the participants. The results also show that the standard paint and glass beads technology is the worst performing and the least desirable of those evaluated. A comparison of the ASTM retroreflectivity measurement methods and the measured luminance results also indicates that the methods are suitable for the conditions used in the evaluation; however, possible additions and corrections to the methods are outlined in this report. A follow-up study is underway to allow development of a performance-based specification for pavement markings for wet night visibility.
Author : Hollis B. Rushing
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.3/5 (91 download)
Download or read book Evaluation of Raised Pavement Markers written by Hollis B. Rushing and published by . This book was released on 1971 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 830 pages
Book Rating : 4.3/5 (555 download)
Download or read book Synthesis of Highway Practice written by and published by . This book was released on 1976 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 458 pages
Book Rating : 4.:/5 (89 download)
Download or read book Report written by and published by . This book was released on 1970 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth R. Agent
Publisher :
ISBN 13 :
Total Pages : 30 pages
Book Rating : 4.3/5 (555 download)
Download or read book Evaluation of Construction-zone Pavement Marking Materials written by Kenneth R. Agent and published by . This book was released on 1987 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this study were to evaluate available foil-back and removable tapes as well as construction-zone raised pavement markers and to recommend materials that should be included on approved lists for use by the Kentucky Department of Highways. Tapes and markers were placed on transverse test sections and the reflectivity, durability, and appearance were observed. Tapes to be included on the approved lists for foil-back and removable tapes were recommended. Tapes manufactured by 3M, Flex-O-Lite, Cataphote, and Swarolite were included on the list of acceptable foil-back tapes. Recommended removable tapes were the 3M and Cataphote removable tapes. Stimsonite 66 and Flex-O-Lite construction-zone markers were included on the approved list for construction-zone raised pavement markers. More specific guidelines were developed to use in future evaluations of construction-zone preformed tape and markers.
Author : United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation
Publisher :
ISBN 13 :
Total Pages : 984 pages
Book Rating : 4.0/5 (18 download)
Download or read book Surface Transportation written by United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Surface Transportation and published by . This book was released on 1975 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Neal R. Hawkins
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (77 download)
Download or read book Wet-reflective Pavement Marking Demonstration Project written by Neal R. Hawkins and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the leading complaints from drivers is the inability to see pavement markings under wet night conditions. This issue is a major source of dissatisfaction in state department of transportation (DOT) customer satisfaction surveys. Driving under wet night conditions is stressful and fatiguing for all drivers, but particularly so for the more vulnerable young and older driver age groups. This project focused on the development of a two-year, long-line test deck to allow for the evaluation and demonstration of a variety of wet-reflective pavement marking materials and treatments under wet night conditions. Having the opportunity to document the performance of these various products and treatments will assist the Iowa DOT and local agencies in determining when and where the use of these products might be most effective. Performance parameters included durability, presence, retroreflectivity, and wet night visibility. The test sections were located within Story County so that Iowa DOT management and staff, as well as local agencies, could drive these areas and provide input on the products and treatments.
Author : Alvin George Anderson
Publisher :
ISBN 13 :
Total Pages : 90 pages
Book Rating : 4.:/5 (319 download)
Download or read book Tentative Design Procedure for Riprap-lined Channels written by Alvin George Anderson and published by . This book was released on 1970 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was the development of criteria and design procedures for the use of aggregate riprap linings, which consists of a layer of discrete fragments of rock of sufficient size to resist the erosive forces of the flow. The design of such riprap-lined drainage channels involves the interrelationship between the discharge, the longitudinal slope, the size and shape of the channel, and the size distribution of the riprap lining. This report describes these interrelationships and develops design criteria by which a riprap-lined drainage channel can be proportioned and the riprap lining can be specified for a given discharge and longitudinal slope. The relationships so developed have been reduced to design charts, the use of which permits rapid and simple establishment of channel shape and size as well as of the properties of the riprap lining.
