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Queue Storage Design for Metered On-Ramps

Zhongren Wang

Queue storage at a metered freeway on-ramp is an essential design element for metered on-ramps to prevent on-ramp queue from extending beyond on-ramps. In this paper, various existing methodologies that are used to size the queue storage at metered on-ramps were first reviewed. It was found that queue storage sized using 7% of peak hour on-ramp demand is widely accepted in practice. A limited dataset collected in California helps provide some reality check for this method. It is recommended that queue storage be recognized as an indispensable design element at metered on-ramps, and detailed sizing guidance be developed in the highway geometric design policy of the American Association of State Highway and Transportation Officials (AASHTO).

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Queue Storage Design for Metered On-Ramps

Zhongren Wang

Queue storage at a metered freeway on-ramp is an essential design element for metered on-ramps to prevent on-ramp queue from extending beyond on-ramps. In this paper, various existing methodologies that are used to size the queue storage at metered on-ramps were first reviewed. It was found that queue storage sized using 7% of peak hour on-ramp demand is widely accepted in practice. A limited dataset collected in California helps provide some reality check for this method. It is recommended that queue storage be recognized as an indispensable design element at metered on-ramps, and detailed sizing guidance be developed in the highway geometric design policy of the American Association of State Highway and Transportation Officials (AASHTO).

Queue Storage Design for Metered On-Ramps

Zhongren Wang

Queue storage at a metered freeway on-ramp is an essential design element for metered on-ramps to prevent on-ramp queue from extending beyond on-ramps. In this paper, various existing methodologies that are used to size the queue storage at metered on-ramps were first reviewed. It was found that queue storage sized using 7% of peak hour on-ramp demand is widely accepted in practice. A limited dataset collected in California helps provide some reality check for this method. It is recommended that queue storage be recognized as an indispensable design element at metered on-ramps, and detailed sizing guidance be developed in the highway geometric design policy of the American Association of State Highway and Transportation Officials (AASHTO).

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Title:

Queue Storage Design for Metered On-Ramps

Contributors:

Zhongren Wang (author)

Published in:

International Journal of Transportation Science and Technology, Vol 2, Iss 1, Pp 47-63 (2013)

Publication date:

2013

ISSN:

DOI:

https://doi.org/10.1260/2046-0430.2.1.47

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

On-Ramp Design , Queue Storage Design , Ramp Metering , Transportation engineering , TA1001-1280

Metadata by DOAJ is licensed under CC BY-SA 1.0

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