Improving the Conspicuity of Trailblazing Signs for Incident Management PDF Download
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Author: Julia A. Barker
Publisher:
ISBN:
Category : Color vision
Languages : en
Pages : 58
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Book Description
This report represents efforts to design and evaluate a new sign design for emergency route trailblazing in a two-part series. Study was an off-road field experiment conducted to determine the best sign color combination, letter stroke width, and letter size for the emergency sign. Based upon the results of that first study, three color combinations were chosen for testing (black on coral, black on light blue, and yellow on purple) against a baseline color combination of black on orange. The test signs to be further tested featured D series, 125-mm (5 in) height letters. Study 2 was conducted using an instrumented vehicle and survey questionnaire through a construction zone-related detour. The independent variables of interest were sign color combination, age, and visibility condition. The findings of Study 2 indicated that use of a color combination other than the traditional orange background with a black legend will improve driver performance and safety when used for trailblazing during critical incidents. Based on the conclusions and other anecdotal evidence, the following recommendations were made: 1. Do not use a black on orange sign for trailblazing around a critical incident if an existing detour/construction zone is in place. 2. Do not use a black on coral sign for trailblazing around a critical incident. 3. A black on light blue sign is recommended due to its generally favorable subjective ratings and for minimization of the number of turn errors made by drivers in an overlapping detour. 4. Despite recommendation 3, it is important to note that the black on light blue sign fades to take on the appearance of a regulatory sign when headlights reflect onto it. 5. If the black on light blue sign is deemed inappropriate due to its appearance as a regulatory sign at night, consider using the yellow on purple color combination. In this study, the yellow on purple sign color combination resulted in fewer turn errors than black on orange and it was generally rated favorably by drivers, especially younger drivers.
Author: Julia A. Barker
Publisher:
ISBN:
Category : Color vision
Languages : en
Pages : 58
Get Book Here
Book Description
This report represents efforts to design and evaluate a new sign design for emergency route trailblazing in a two-part series. Study was an off-road field experiment conducted to determine the best sign color combination, letter stroke width, and letter size for the emergency sign. Based upon the results of that first study, three color combinations were chosen for testing (black on coral, black on light blue, and yellow on purple) against a baseline color combination of black on orange. The test signs to be further tested featured D series, 125-mm (5 in) height letters. Study 2 was conducted using an instrumented vehicle and survey questionnaire through a construction zone-related detour. The independent variables of interest were sign color combination, age, and visibility condition. The findings of Study 2 indicated that use of a color combination other than the traditional orange background with a black legend will improve driver performance and safety when used for trailblazing during critical incidents. Based on the conclusions and other anecdotal evidence, the following recommendations were made: 1. Do not use a black on orange sign for trailblazing around a critical incident if an existing detour/construction zone is in place. 2. Do not use a black on coral sign for trailblazing around a critical incident. 3. A black on light blue sign is recommended due to its generally favorable subjective ratings and for minimization of the number of turn errors made by drivers in an overlapping detour. 4. Despite recommendation 3, it is important to note that the black on light blue sign fades to take on the appearance of a regulatory sign when headlights reflect onto it. 5. If the black on light blue sign is deemed inappropriate due to its appearance as a regulatory sign at night, consider using the yellow on purple color combination. In this study, the yellow on purple sign color combination resulted in fewer turn errors than black on orange and it was generally rated favorably by drivers, especially younger drivers.
Author:
Publisher:
ISBN:
Category : State government publications
Languages : en
Pages : 216
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Book Description
Author:
Publisher:
ISBN:
Category : Air travel
Languages : en
Pages : 734
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Book Description
Author:
Publisher:
ISBN:
Category : Decision support systems
Languages : en
Pages : 418
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Book Description
This project entailed the design, development, testing, and evaluation of intersection decision support (IDS) systems to address straight crossing path (SCP) intersection crashes. This type of intersection crash is responsible for more than 100,000 crashes and thousands of fatalities each year. In developing these IDS systems for both signalized and stop-controlled intersections, a top-down systems approach was used that determined the necessary system functions and evaluated the capability of different technologies to perform those functions. Human factors tests were also conducted that evaluated the effectiveness of warning algorithms and infrastructure-based driver-infrastructure interfaces in eliciting a stopping response from drivers about to be involved in an SCP intersection crash. Results indicated that further technological development is needed for the sensing and intersection state IDS functions. Furthermore, infrastructure-based warning interfaces tested were greatly outperformed by previously-tested in-vehicle warnings. Thus, future research on IDS systems should focus on their infrastructure-cooperative configuration, where the system supports an in-vehicle warning.
Author:
Publisher:
ISBN:
Category : Lawyers
Languages : en
Pages : 1516
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Book Description
Author: European Conference of Ministers of Transport
Publisher: OECD Publishing
ISBN:
Category :
Languages : en
Pages : 296
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Book Description
This Report addresses the key issues surrounding traffic speed management and highlights the improvements in policy and operations needed to reduce the extent of speeding.
Author: Sio-Iong Ao
Publisher: American Institute of Physics
ISBN:
Category : Business & Economics
Languages : en
Pages : 316
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Book Description
This volume contains twenty-seven revised and extended research articles written by prominent researchers of the International MultiConference of Engineers and Computer Scientists (IMECS 2008). The book offers the state of art of tremendous advances in engineering technologies and also serves as an excellent reference work for researchers and graduate students.
Author: S. G. Dani
Publisher: Springer Nature
ISBN: 3030136094
Category : Mathematics
Languages : en
Pages : 759
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Book Description
This is a collection of surveys on important mathematical ideas, their origin, their evolution and their impact in current research. The authors are mathematicians who are leading experts in their fields. The book is addressed to all mathematicians, from undergraduate students to senior researchers, regardless of the specialty.
Author: Wuhong Wang
Publisher: Springer Science & Business Media
ISBN: 9491216805
Category : Computers
Languages : en
Pages : 343
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Book Description
This book presents the new development of computation intelligence for traffic, transportation and mobility, the main contents include traffic safety, mobility analysis, intelligent transportation system, smart vehicle, transportation behavior, driver modeling and assistance, transportation risk analysis and reliability system analysis, vehicle operation and active safety, urban traffic management and planning.
Author: Kate Hartman
Publisher:
ISBN:
Category : Commercial vehicles
Languages : en
Pages : 132
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Book Description
This summary report describes the September 1998 technology transfer scan tour to four European countries to learn how these countries are addressing their own safety issues, even as they comply with the increasing centralization of rules and regulations enacted by the European Commission. The nine-member scan tour team that visited France, Germany, Sweden, and the Netherlands represented the Federal Highway Administration, the Virginia and Minnesota State Departments of Transportation, the Owner/Operators and Independent Drivers Association, and independent transportation consultants. The key areas examined by the team were human resources, vehicle safety systems, and regulations. The report also includes recommendations and implementation strategies.
