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| Dynamic OD Matrix Estimation Model of Urban Network |
| DIAO Yang-a, JUAN Zhi-Cai-a, NI An-Ning-b |
| (aAntai College of Economics & Management; bSchool of Naval Achitecture,Ocean and Civil Engineering, Shanghai Jiaotong University, Shanghai 200052, China) |
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Abstract Realtime dynamic OD matrix is an important input for dynamic traffic assignment system. This paper built a new statespace model whose measurement equation will take the interaction detection data into account, and proposed a onestep prediction Kalmanfiltering model to achieve this target. The case study shows that including the interaction data into the measurement equation will give a more accurate estimation and prediction and a simulationbased assignment matrix will give a more accurate reflection on how many volumes are detected by certain facility.
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Received: 10 April 2011
Published: 30 March 2012
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