New Approach for Developing an Asphalt Concrete Overlay Transition Standard
Publication: Journal of Transportation Engineering
Volume 138, Issue 7
Abstract
Smooth transitions are necessary to ensure the desired ride for the traveling public. Transitions are used within projects as new pavement approaches a bridge to avoid adding unnecessary dead load on the bridge. As roadways pass beneath bridges, transitions are used to avoid encroaching on the existing vertical clearance. This paper describes Virginia Department of Transportation (VDOT) efforts to develop an effective standard for transition details. An in-depth analytical model considering the vehicle dynamics was developed to establish the transition lengths for various overlay thicknesses and speed limits. Virtual profiles using these lengths and overlay thicknesses were generated to assess the ride over the transition. Simplified methods to calculate transition lengths were introduced.
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Acknowledgments
Special thanks are due to the following persons/groups for their involvement in the evolution of this transition standard: VDOT State Structure & Bridge Engineer, Ken Walus, P.E. VTRC Research Scientist, Kevin McGhee, FHWA Area Engineer, John Mazur, P.E., VDOT Road Design Engineer, Matthew Cross, VDOT Pavement Design Engineer, Bipad Saha, P.E.,VDOT District Materials Engineers, VDOT District construction Engineers, Industry.
References
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Minnesota DOT. (2010). “Minnesota DOT technical support.” Chapter 10, Paving. 〈http://www.dot.state.mn.us/pre-letting/scene/download/scene-complete.pdf#chapter-10〉, (Jan. 2010).
New York State DOT (NYSDOT). (2009). “Hot mix asphalt overlay splice (pavement termination detail).” 〈https://www.nysdot.gov/main/business-center/engineering/cadd-info/drawings/standard-sheets-us-repository/402-01.pdf〉 (Jan. 2010).
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 138 • Issue 7 • July 2012
Pages: 933 - 939
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Jun 14, 2011
Accepted: Dec 16, 2011
Published online: Dec 21, 2011
Published in print: Jul 1, 2012
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