Download or read book Minimum Highway Sign Luminance Requirements for Older Drivers written by and published by . This book was released on 1996 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this research, the minimum amount of luminance required by older and younger drivers to identify a numerical legend on yellow warning signs at night was investigated. A field study was conducted for subjective and objective evaluation of seven yellow warning signs on a simulated two-way rural highway. The signs were prepared to have different retroreflectivity values thus providing different luminance values to the subjects.
Download or read book Highway Sign Minimum Luminance Requirements for Older Drivers written by Johnny R. Graham and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Minimum Luminance Requirements of Traffic Signs for Older Drivers written by Anwar Fazal and published by . This book was released on 1995 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation in an Aging Society written by and published by Transportation Research Board. This book was released on 2004 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Design Handbook for Older Drivers and Pedestrians written by L. K. Staplin and published by . This book was released on 2001 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Implementation Strategies for Sign Retroreflectivity Standards written by Kent L. Black and published by Transportation Research Board. This book was released on 1992 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Lighting Requirements for Older Drivers written by Douglas J. Mace and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Although roadway lighting has been found to reduce the nighttime accident rate, previous studies have had difficulty developing a relationship between any description of the lighting provided and the extent of accident reduction. While it should be possible to design fixed lighting systems so that any increased investment in the system will always result in an improved night/day accident ratio, research has indicated that higher levels of illumination do not always accomplish this. The response of the lighting community has evolved from recommendations based on minimum levels of light (illuminance), to the development of guidelines intended to improve visibility and mitigate the effects of glare. The research reported here attempted to investigate a number of issues concerning the relationships of fixed lighting parameters to visibility and driver comfort. Nine fixed lighting designs were used to explore the interactive effects of luminance and luminance uniformity with respect to minimizing the negative effects of glare and maximizing the visibility of objects within fixed lighting area. While the study did not provide definitive results as to how to design a lighting system that will reduce the night/day accident ratio, the results do suggest a possible explanation of why a relationship between accidents and lighting design has not been found. The results indicated that medium levels of illumination provided comparable visibility to higher levels, when the former were accompanied by non-uniform luminance. Therefore more costly designs are not necessarily better. Also, some lighting designs provide less visibility than no lighting at all, a result that can be explained by the interactive effects of headlights. Further research is needed to address the issue of whether the visibility task used in this research is a proper criterion for lighting design. To this end, the issue is not whether the highway is littered with objects similar to the reference visibility target used in this study, but whether a lighting system designed to optimize the visibility of this target will improve the visibility of everything else, including pedestrians, lane lines, etc. Or does optimizing the visibility of the reference target, reduce the visibility of more critical targets.
Download or read book Development of Headlight System Performance Criteria written by Douglas J. Mace and published by . This book was released on 1993 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Human Factors Guidelines for Road Systems written by John L. Campbell and published by Transportation Research Board. This book was released on 2012 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report completes and updates the first edition of NCHRP Report 600: Human Factors Guidelines for Road Systems (HFG), which was published previously in three collections. The HFG contains guidelines that provide human factors principles and findings for consideration by, and is a resource document for, highway designers, traffic engineers, and other safety practitioners."--Foreword.
Download or read book FHWA Nationally Coordinated Program of Highway Research Development and Technology Annual Progress Report Fiscal Year 1993 written by and published by . This book was released on 1993 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Roundabouts written by Lee August Rodegerdts and published by Transportation Research Board. This book was released on 2010 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.
Download or read book Public Roads written by and published by . This book was released on 1977 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book FHWA Nationally Coordinated Program of Highway Research Development and Technology Annual Progress Report Fiscal Year 1991 written by and published by . This book was released on 1991 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transportation Research Record written by and published by . This book was released on 2004 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Designing Transportation Systems for Older Adults written by Carryl L. Baldwin and published by CRC Press. This book was released on 2019-06-06 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive information needed to assist with all aspects of designing, delivering, or evaluating transportation systems for use by older adults, and presents the necessary background on aging and human factors issues as well as practical guidelines needed to accommodate older adult transport users. Features Presents clear design guidance aimed at improving usability among older adults, a too often neglected but fast-growing segment of the transportation system population Includes comprehensive coverage of transportation systems, including the notably important issue of older drivers, but also additional transportation forms including public transportation via bus and subway, air transport, rail, bicycle, and even pedestrians Offers numerous examples throughout of best practices based on both the scientific literature and the content expertise of the authors Discusses practical implications of incorporating the recommended design principles for both older adults and other transport system users Provides useful background about normal age-related changes in sensory, cognitive, and physical abilities that impact older adults and how they interact with transportation systems
Download or read book Characteristics and Needs for Overhead Guide Sign Illumination from Vehicular Headlamps written by Eugene Russell and published by . This book was released on 1999 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: A team of Kansas State University researchers was given a contract to determine the minimum luminance requirements for overhead guide signs and to determine if the illuminance from vehicle headlamps on highways was sufficient to provide drivers with this required minimum luminance. This report covers a literature review to determine the minimum luminance value needed, an overview of the equipment developed for field studies of vehicle headlamp illuminance, results of a small laboratory study to determine minimum luminance of highway guide signs, and the results of field studies to determine illuminance values from a sample of the fleet of vehicles on highways, and the results of a study of illuminance values obtained from the headlamps of 50 known vehicles of varying ages and types.
Download or read book Department of Transportation and Related Agencies Appropriations for 2002 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Dept. of Transportation and Related Agencies Appropriations and published by . This book was released on 2001 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt:
