Estimation of Origin-Destination Matrix from Traffic Counts and Cellphone Network Data (Case Study: Shiraz City)

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Arbabi Bidgoli, Mohammad | 2019

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 51758 (09)
University: Sharif University of Technology
Department: Civil Engineering
Advisor(s): Zokaei Aashtiani, Hedayat
Abstract:
The trip demand information in the form of the origin-destination (OD) matrix is of significant importance in the transportation studies. Obtaining such a matrix by conventional methods requires a considerable amount of time, cost, and human resources. Traffic count and cellphone network data are two relatively inexpensive data that can be used for estimation of OD matrices as well as correction of prior matrices. The trip demand estimation problem is a bi-level model, and the gradient algorithm is one way to solve it. This study, by generalizing the gradient algorithm, attempts to a better use of the available data. In this algorithm, a complementary algorithm is used to solve the traffic assignment problem. Application of the proposed algorithm for Shiraz city indicates that this algorithm yields estimated volumes close to observed volumes and the estimated matrix very close to the target matrix, along with very low computational time. Besides, when cellphone matrix data are used in the proposed algorithm, estimated volumes get closer to observed volumes, and the estimated matrix get closer to the target matrix
Keywords:
Demand Matrix Adjustment ; Observed Link Volume ; Mobile Matrix ; Traffic Assignment ; User Equilibrium Problem ; Travel Demand Estimation ; Origin-Destination Estimation

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