Queuing delay models for single-lane roundabouts Academic Article

abstract

• This article presents an analytical model for a few important operational characteristics of single-lane roundabouts in the United States. In particular, we obtain renewal-based analytical expressions for the mean and variance of the time required for entry into the circulating stream for an arbitrary vehicle occupying the first position of the approach, regardless of the distribution of time headways for the circulating stream. These analytical models are subsequently applied in a M/G/1 queuing model to compute the steady-state average delay and length of the queue at the approach under stable conditions. The analytical models are validated by comparing numerical results for average delay with field observations obtained at six single-lane roundabout sites in the United States. The models are shown to perform well under a range of circulating stream flow rates. 2005 Taylor & Francis.

authors

• Gautam, Natarajan

published proceedings

• CIVIL ENGINEERING AND ENVIRONMENTAL SYSTEMS

author list (cited authors)

• Flannery, A., Kharoufeh, J. P., Gautam, N., & Elefteriadou, L.

citation count

• 14

complete list of authors

• Flannery, A||Kharoufeh, JP||Gautam, N||Elefteriadou, L

publication date

• January 2005

publisher

• Taylor & Francis  Publisher

published in

• Civil Engineering and Environmental Systems  Journal

keywords

• Delay
• Headway Distribution
• Roundabout Delay
• Roundabout Operations
• Unsignalized Operations

Digital Object Identifier (DOI)

• 10.1080/10286600500279949

start page

• 133

end page

• 150

volume

• 22

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1080%2F10286600500279949