NDLI: Observed-link-flow-based OD matrix estimation with stochastic factors

Content Provider	IEEE Xplore Digital Library
Author	Guo-hui Zhang Yi Zhang Jian-ming Hu Jiang-tao Ren Chun-guang Zong
Copyright Year	2002
Description	Author affiliation: Dept. of Autom., Tsinghua Univasky, Beijing, China (Guo-hui Zhang; Yi Zhang; Jian-ming Hu; Jiang-tao Ren; Chun-guang Zong)
Abstract	A new iterative procedure with the consideration of the integrating stochastic factors is established for estimating origin-destination (OD) matrices. The analytical form of the link choice proportions is developed. By minimizing the squared errors between estimated and observed link flows, the mathematical model balances all degrees of approximation for restricted equations. The recursive least squares method is conducted to evaluate OD matrices based on the estimation theory. The conducted method is more receptive to fluctuations in the observation due to integrating stochastic disturbances including the measurement errors and temporal variations of the observed link flows, and can make better use of traffic information from observation systems. The analysis and simulation study show that the method is feasible. Factors influencing the computed results of OD matrices are discussed and directions for future researches are proposed.
Starting Page	479
Ending Page	484
File Size	476070
Page Count	6
File Format	PDF
ISBN	0780373898
DOI	10.1109/ITSC.2002.1041264
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-06
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stochastic processes Mathematical model Least squares approximation Equations Least squares methods Estimation theory Fluctuations Stochastic systems Measurement errors Traffic control
Content Type	Text
Resource Type	Article

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