Presentation Type
Poster
Start Date
5-8-2013 11:00 AM
Subjects
signs and signals -- Design and construction -- Surveys
Abstract
This poster presents the results of a survey of North American jurisdictions with known installations of bicycle-specific traffic signals and a review of available engineering guidance. Surveys were sent to agencies in 21 jurisdictions (19 in the United States and two in Canada) that requested detailed engineering aspects of the signal design such as placement, mounting height, lens diameter, backplate color, type of actuation, interval times, use of louvers, and performance. We reviewed guidance documents produced by the National Association of City Transportation Officials (NACTO); American Association of State Highway and Transportation Officials (AASHTO); Transportation Association of Canada (TAC); the CROW design manual for bicycle traffic; and the Canadian, U.S. and Californian manuals on uniform traffic control devices. Responses were received for 63 intersections and 149 separate signal heads. The survey results highlight the current treatments and variations of similar designs. A subsequent review of the documents generally revealed consistent guidance with regard to the design of bicycle-specific traffic signals. The guidance on bicycle signals has grown substantially in recent years, and it is likely that there will be less variety in future designs.
Rights
© Copyright the author(s)
IN COPYRIGHT:
http://rightsstatements.org/vocab/InC/1.0/
This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
DISCLAIMER:
The purpose of this statement is to help the public understand how this Item may be used. When there is a (non-standard) License or contract that governs re-use of the associated Item, this statement only summarizes the effects of some of its terms. It is not a License, and should not be used to license your Work. To license your own Work, use a License offered at https://creativecommons.org/
Persistent Identifier
http://archives.pdx.edu/ds/psu/9431
Included in
Bicycle-Specific Traffic Signals: Results from State-of-the-Practice Review
This poster presents the results of a survey of North American jurisdictions with known installations of bicycle-specific traffic signals and a review of available engineering guidance. Surveys were sent to agencies in 21 jurisdictions (19 in the United States and two in Canada) that requested detailed engineering aspects of the signal design such as placement, mounting height, lens diameter, backplate color, type of actuation, interval times, use of louvers, and performance. We reviewed guidance documents produced by the National Association of City Transportation Officials (NACTO); American Association of State Highway and Transportation Officials (AASHTO); Transportation Association of Canada (TAC); the CROW design manual for bicycle traffic; and the Canadian, U.S. and Californian manuals on uniform traffic control devices. Responses were received for 63 intersections and 149 separate signal heads. The survey results highlight the current treatments and variations of similar designs. A subsequent review of the documents generally revealed consistent guidance with regard to the design of bicycle-specific traffic signals. The guidance on bicycle signals has grown substantially in recent years, and it is likely that there will be less variety in future designs.