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Use Of High Intensity Reflective Materials In Highway Signing
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Book Synopsis Use of High Intensity Reflective Materials in Highway Signing by : Richard Neal Robertson
Download or read book Use of High Intensity Reflective Materials in Highway Signing written by Richard Neal Robertson and published by . This book was released on 1973 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This literature review summarizes the research findings relative to the performance of high intensity (encapsulated lens) reflective sheeting. The study reveals that the brightness and durability of the encapsulated lens material are superior to those of the conventional enclosed lens sheeting utilized by the Highway Department. The high intensity sheeting requires less maintenance and performs well during adverse weather conditions. Minor problems are encountered in the fabrication process, however, solutions for these are expected in the near future. Although the initial cost for encapsulated lens sheeting is higher than that of the enclosed lens material, a net savings through extended service life of signs can be anticipated through the use of the former. It is concluded that the encapsulated lens sheeting shows sufficient promise of success to warrant greater utilization of the material, especially on construction and nighttime maintenance signs.
Book Synopsis The Applicability of High Intensity Sheeting on Overhead Highway Signs by : R. N. Robertson
Download or read book The Applicability of High Intensity Sheeting on Overhead Highway Signs written by R. N. Robertson and published by . This book was released on 1975 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes (1) the findings of a research study on the applicability of using high intensity reflective sheeting on overhead signs, and (2) the implementation of recommendations evolving from these findings through elimination of the illumination on many overhead signs in Virginia. A survey was conducted to determine the percentage of overhead signs meeting the criteria, developed in the research, under which the illumination could be eliminated if they were refurbished with high intensity sheeting, and the plans of several proposed projects were reviewed to obtain an estimate of the percentage of signs on which lighting could be eliminated through the use of the high intensity material. Also, data were collected relative to the installation, energy and maintenance costs for lighting overhead signs. The study concluded that the illumination could be eliminated on approximately 45% of the existing signs and 50% of the proposed signs through the use of high intensity reflective materials. The benefits anticipated from the implementation of the program include enormous money and energy savings, a significant reduction in the exposure of maintenance personnel to hazardous working conditions, and improved services to the motorists.
Book Synopsis High-intensity Reflective Materials for Signs by : R. L. Rizenbergs
Download or read book High-intensity Reflective Materials for Signs written by R. L. Rizenbergs and published by . This book was released on 1972 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Review of Kansas Department of Transportation Reflective Sheeting Policy by : Eugene R. Russell
Download or read book A Review of Kansas Department of Transportation Reflective Sheeting Policy written by Eugene R. Russell and published by . This book was released on 1992 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main objective of this study was to determine the best, cost-effective policy, consistent with safety, for sign sheeting material to be used on signs and construction work zone traffic control devices on State highways in Kansas. The investigation consisted of reviewing literature, contacting knowledgeable traffic engineers and research, conducting a survey of selected States' practice, conducting a life-cycle cost analysis, and reviewing a previous reflective sheeting study conducted for the Kansas Department of Transportation (Bellomo-McGee Inc., 1988).
Book Synopsis Evaluation of High Intensity Sheeting for Overhead Highway Signs by : R. N. Robertson
Download or read book Evaluation of High Intensity Sheeting for Overhead Highway Signs written by R. N. Robertson and published by . This book was released on 1974 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The current practice in Virginia is to reflectorize and illuminate all overhead highway signs because of their important role in the safe and orderly flow of traffic. Reflectorization is obtained by using reflective sheeting as background and legend materials, and diffuse illumination is provided on the sign surface by lighting fixtures. The performance of the high intensity sheeting has shown significant promise and the purpose of this research was to determine the feasibility of using the material on overhead highway signs without external illumination. Since sign brightness standards have not been established, a comparative technique was employed whereby the brightness of six high intensity overhead signs without illumination was compared to that of six conventional illuminated signs. All experimentation was conducted in the field under the physical and environmental conditions experienced by the highway user. Luminance measurements were made with a telephotometer at the driver's eye position of eleven conventional automobiles. A total of 5,446 luminance measurements were recorded from the travel lanes of illuminated and non-illuminated roadways. The study concluded that the unlighted high intensity signs were brighter than the lighted conventional signs for the motorist traveling on straight sections of roadways using high beam headlights. For the same motorist using low beams the luminances of the high intensity signs were not as bright as those of adjacent conventional signs. Under stream traffic conditions, the average luminances of the conventional signs were slightly higher than those of the unlighted high intensity signs, however, in many cases there were no statistical differences and the people who viewed the signs stated they preferred the high intensity sign because its uniform brightness provided better legibility. On a curved approach, where only a limited amount of light from the vehicles was projected upon the overhead signs, the brightness of the unlighted high intensity signs was not sufficient to provide the motorists with sign visibility and legibility equivalent to those obtained from the lighted conventional signs.
Book Synopsis Evaluation of Overhead Sign Background Materials and Mercury Vapor Sign Lights by : H. Dexter Jones
Download or read book Evaluation of Overhead Sign Background Materials and Mercury Vapor Sign Lights written by H. Dexter Jones and published by . This book was released on 1984 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Verhead Guide Signs can be illuminated to sufficient target value and uniformity with certain 100 watt mercury vapor lighting units. Coating materials based on thermal setting polyester, and thermal setting polyvinylidene fluoride have been found to be satisfactory coating materials for Overhead Guide Signs. Preliminary field evaluations and legibility studies indicate that approximately 40% of the Overhead Guide Signs in the State would not require illumination if the legend is reflective.
Book Synopsis Retroreflective Sheeting Materials on Highway Signs by : Donna Tranchida
Download or read book Retroreflective Sheeting Materials on Highway Signs written by Donna Tranchida and published by . This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a road research project, older drivers were asked to read street names as soon as they were able as they were approaching an intersection. The signs were always on the farsides of the intersection but could be either on the right or left side. Intersections of three levels of compplexity were used. A repeated measures design was used. The implications for driving safety were discussed in the context of visual information processing workload, divided attention and multitasking.
Book Synopsis Minimal Luminance Requirement for Official Highways Signs by :
Download or read book Minimal Luminance Requirement for Official Highways Signs written by and published by . This book was released on 1986 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minimal Luminance Requirement for Official Highway Signs. Final Report by : Douglas J. Mace
Download or read book Minimal Luminance Requirement for Official Highway Signs. Final Report written by Douglas J. Mace and published by . This book was released on 1986 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Limited Evaluation of Reflective and Non-reflective Background for Overhead Signs by : Norman Bryan
Download or read book A Limited Evaluation of Reflective and Non-reflective Background for Overhead Signs written by Norman Bryan and published by . This book was released on 1978 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Certain High Intensity Retroreflective Sheeting, Inv. 337-TA-268 by :
Download or read book Certain High Intensity Retroreflective Sheeting, Inv. 337-TA-268 written by and published by DIANE Publishing. This book was released on with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Railroad-highway Crossings, Visibility, and Human Factors by : National Research Council (U.S.). Transportation Research Board
Download or read book Railroad-highway Crossings, Visibility, and Human Factors written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 1976 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Guide Sign Construction Material by : H. Dexter Jones
Download or read book Evaluation of Guide Sign Construction Material written by H. Dexter Jones and published by . This book was released on 1987 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Instrumental Colorimetry of Retroreflective Sign Materials by : I. Nimeroff
Download or read book Instrumental Colorimetry of Retroreflective Sign Materials written by I. Nimeroff and published by . This book was released on 1975 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation of Retroreflective Sheetings for Use on Roadway Traffic Signs : Final Report by : Samir A. Ahmed
Download or read book Evaluation of Retroreflective Sheetings for Use on Roadway Traffic Signs : Final Report written by Samir A. Ahmed and published by . This book was released on 1994 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Determine the luminous requirements of retroreflective highway signing. Final report by : P. L. Olson
Download or read book Determine the luminous requirements of retroreflective highway signing. Final report written by P. L. Olson and published by . This book was released on 1977 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The use of materials for the Nation's highways, by U.S. Bureau of Public Roads by : United States. Congress. Senate. Committee on Public Works
Download or read book The use of materials for the Nation's highways, by U.S. Bureau of Public Roads written by United States. Congress. Senate. Committee on Public Works and published by . This book was released on 1962 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
