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Author :
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (948 download)
Download or read book Conspicuity of traffic control devices written by and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.s. Department of Transportation
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723447228
Total Pages : 70 pages
Book Rating : 4.4/5 (472 download)
Download or read book Traffic Control Device Conspicuity written by U.s. Department of Transportation and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic control device conspicuity /
Author : Vaughan W. Inman
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (862 download)
Download or read book Traffic control device conspicuity written by Vaughan W. Inman and published by . This book was released on 2013 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conspicuity of a traffic control device (TCD) is defined as the probability that the device will be noticed. However, there is no agreed-upon measure of what constitutes being noticed. Various measures have been suggested, including eye fixations, recall, and verbal reports. Four conspicuity studies are discussed in this report. It has been observed that conspicuity is not solely a property of a TCD but must include consideration of the surrounding environment. The first of the studies described in this report used multidimensional scaling (MDS) to identify factors that characterize drivers' perceptions of TCD environments. The MDS study revealed that two dimensions, clutter and predictability, characterized the roadway environments included in the study. In the second study, drivers' eye glances to TCDs were recorded on a 34-mi (55-km) drive. After passing selected TCDs, drivers' recall of the TCD was assessed by asking them to identify it. That study showed that warning signs are seldom glanced at and only about half of them are recalled just 2 s after they are passed. About 20 percent of speed limit signs received glances, but drivers were aware of the posted speed limit about 80 percent of the time. The third study examined drivers' ability to detect speed limit and warning signs. The ability to detect speed limit signs, as measured by conspicuity angle, was degraded by cluttered backgrounds. However, the detectability of fluorescent yellow-green warning signs was not affected by background clutter. The fourth study examined the effect of background environment on drivers' ability to read TCDs. Background had no effect on speed limit sign readability and had a small effect on warning sign readability. Recommendations for enhancing the conspicuity of regulatory signs are proposed.
Author : Vaughan W. Inman
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.:/5 (862 download)
Download or read book Traffic control device conspicuity written by Vaughan W. Inman and published by . This book was released on 2013 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conspicuity of a traffic control device (TCD) is defined as the probability that the device will be noticed. However, there is no agreed-upon measure of what constitutes being noticed. Various measures have been suggested, including eye fixations, recall, and verbal reports. Four conspicuity studies are discussed in this report. It has been observed that conspicuity is not solely a property of a TCD but must include consideration of the surrounding environment. The first of the studies described in this report used multidimensional scaling (MDS) to identify factors that characterize drivers' perceptions of TCD environments. The MDS study revealed that two dimensions, clutter and predictability, characterized the roadway environments included in the study. In the second study, drivers' eye glances to TCDs were recorded on a 34-mi (55-km) drive. After passing selected TCDs, drivers' recall of the TCD was assessed by asking them to identify it. That study showed that warning signs are seldom glanced at and only about half of them are recalled just 2 s after they are passed. About 20 percent of speed limit signs received glances, but drivers were aware of the posted speed limit about 80 percent of the time. The third study examined drivers' ability to detect speed limit and warning signs. The ability to detect speed limit signs, as measured by conspicuity angle, was degraded by cluttered backgrounds. However, the detectability of fluorescent yellow-green warning signs was not affected by background clutter. The fourth study examined the effect of background environment on drivers' ability to read TCDs. Background had no effect on speed limit sign readability and had a small effect on warning sign readability. Recommendations for enhancing the conspicuity of regulatory signs are proposed.
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (863 download)
Download or read book Traffic control device conspicuity written by and published by . This book was released on 2013 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : S. E. Jenkins
Publisher :
ISBN 13 :
Total Pages : 17 pages
Book Rating : 4.:/5 (173 download)
Download or read book Daytime Conspicuity of Road Traffic Control Devices written by S. E. Jenkins and published by . This book was released on 1984 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : SE. Jenkins
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (948 download)
Download or read book Conspicuity of Traffic Control Devices written by SE. Jenkins and published by . This book was released on 1979 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Advisory Committee on Uniform Traffic Control Devices
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (327 download)
Download or read book Traffic Control Devices Handbook written by United States. National Advisory Committee on Uniform Traffic Control Devices and published by . This book was released on 1975 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The handbook, in its treatment of signs, pavement markings and signals, presents typical values or ranges of values used for implementing traffic control measures, as well as providing examples of contract plan sheets, specifications and work orders. With respect to signs, consideration is given to materials, equipment, installation, maintenance, vandalism, etc. The section on pavement markings includes materials, methods of application and application operations. Traffic signal design, operation, equipment, and maintenance are discussed, as are various types of signal systems.
Author : Antoine Bricker
Publisher : Nova Science Publishers
ISBN 13 : 9781631171604
Total Pages : 0 pages
Book Rating : 4.1/5 (716 download)
Download or read book Traffic Sign Conspicuity written by Antoine Bricker and published by Nova Science Publishers. This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book may be of use to traffic engineers and researchers who are concerned with the conspicuity of traffic signs. The Manual on Uniform Traffic Control Devices advises that, "Signs should be placed on the right side of the roadway where they are easily recognised and understood by road users". Guidance is provided on the spacing and prioritisation of signs, and in some conditions, additional steps may be needed to ensure that signs are conspicuous. This book also provides federal regulations that have been put in place to ensure that traffic signs are visible at night, and discusses impacts on state and local agencies of maintaining traffic sign retroreflectivity.
Author : Michael D. Fontaine
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.3/5 (91 download)
Download or read book Evaluation of Traffic Control Devices for Rural High-speed Maintenance Work Zones: Second Year Activities and Final Recommendations written by Michael D. Fontaine and published by . This book was released on 2000 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Antoine Bricker
Publisher :
ISBN 13 : 9781631171703
Total Pages : 140 pages
Book Rating : 4.1/5 (717 download)
Download or read book Traffic Sign Conspicuity written by Antoine Bricker and published by . This book was released on 2013 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book may be of use to traffic engineers and researchers who are concerned with the conspicuity of traffic signs. The Manual on Uniform Traffic Control Devices advises that, "Signs should be placed on the right side of the roadway where they are easily recognized and understood by road users." Guidance is provided on the spacing and prioritization of signs, and in some conditions, additional steps may be needed to ensure that signs are conspicuous. This book also provides federal regulations that have been put in place to ensure that traffic signs are visible at night, and discusses impacts on state and local agencies of maintaining traffic sign retroreflectivity.
Author : National Advisory Committee on Uniform Traffic Control Devices
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.3/5 (555 download)
Download or read book Traffic control devices handbook written by National Advisory Committee on Uniform Traffic Control Devices and published by . This book was released on 1975 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 648 pages
Book Rating : 4.3/5 ( download)
Download or read book Traffic Control Devices Handbook written by and published by . This book was released on 1983 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: Guidelines for implementing the standards and applications contained in the Manual on Uniform Traffic Control Devices.
Author :
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.3/5 (555 download)
Download or read book The effect of flashing traffic control devices on accident occurrence written by and published by . This book was released on 1969 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Joint Committee on Uniform Traffic Control Devices
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.:/5 (3 download)
Download or read book Manual on Uniform Traffic Control Devices for Streets and Highways written by National Joint Committee on Uniform Traffic Control Devices and published by . This book was released on 1971 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher :
ISBN 13 :
Total Pages : 560 pages
Book Rating : 4.0/5 ( download)
Download or read book Roadside Design Guide written by American Association of State Highway and Transportation Officials. Task Force for Roadside Safety and published by . This book was released on 1989 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. National Advisory Committee on Uniform Traffic Control Devices
Publisher :
ISBN 13 :
Total Pages : 170 pages
Book Rating : 4.:/5 ( download)
Download or read book Manual on Uniform Traffic Control Devices for Streets and Highways written by United States. National Advisory Committee on Uniform Traffic Control Devices and published by . This book was released on 1978 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
