Chapter
Apr 26, 2012
Estimation of Origin-Destination Flows and Route Choice Parameters from Incomplete Link Flows
Publication: Computing in Civil Engineering (2007)
Abstract
Most conventional Origin-Destination models work with limited link observations with help of target demand or other prior information. This paper presents a new approach for estimation of Origin-Destination flows and route choice parameters simultaneously from incomplete link flows. By presenting approximate joint probability distribution functions of the temporal link traffic flows on a network, the conditional likelihood functions for estimating dynamic O-D and route choice parameters are derived. An Expectation-Maximization (EM) algorithm is proposed to estimate those parameters based on incomplete link flow data. Preliminary results indicate that the new approach can provide validated results.
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Published In
Computing in Civil Engineering (2007)
Pages: 347 - 354
Copyright
© 2007 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Department of Civil Engineering, 500 El Camino Real, Santa Clara University, Santa Clara, CA 95053;. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.