Generalized Capacity Estimation Model for Weaving Areas
Publication: Journal of Transportation Engineering
Volume 133, Issue 3
Abstract
Weaving areas are one of the major highway facilities that have long been investigated by researchers. Their capacities are currently estimated based on the density . There is no specific reason why this method can produce accurate estimates. In addition, no data collection has been performed to validate them. This study develops a generalized capacity estimation model for weaving areas, which is applicable to the entire range of configurations of weaving areas, and compares the resulting capacity estimates to field estimates. The proposed methodology is based on gap acceptance theory and linear programming techniques. Speed and flow data over several days were obtained and analyzed to extract the capacity of three study sites along the QE Expressway, Toronto. It was found that, for the three study sites, the proposed methodology provides capacity estimates that are closer to the field-observed capacity values than the Highway Capacity Manual (2000) estimates.
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References
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 133 • Issue 3 • March 2007
Pages: 166 - 179
Copyright
© 2007 ASCE.
History
Received: Mar 22, 2004
Accepted: Aug 24, 2004
Published online: Mar 1, 2007
Published in print: Mar 2007
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