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Estimating commuting matrix and error mitigation – A complementary use of aggregate travel survey, location-based big data and discrete choice models

Accepted version
Peer-reviewed

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Type

Article

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Abstract

The prevalence of location-based big data opens up a new research frontier of estimating origin–destination commuting matrix for cities where granular flow data are not yet available from official sources. However, investigations into estimation errors and potential correction methods have been rare in the literature. To address the research gap, this paper first compares the performance of two estimated commuting matrices for Shanghai, derived by two distinct matrix estimation methods, namely a big-data approach using mobile phone signalling data and a discrete choice model for simulating the residential location of commuters. The empirical results indicate an outstanding analytical complementarity of the two approaches. A novel method is then proposed for mitigating the errors associated with the big-data approach. The proposed method features a selective blending of the big-data based flow estimation and the model-based estimation. By comparing the blended flow with benchmark travel statistics, we find that the proposed method would significantly reduce the estimation errors and hence improve the robustness of the estimated matrix. It is expected that the proposed method will set a new standard for correcting potential errors in big-data based flow estimation.

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Keywords

Matrix estimation, Commuting, Location-based big data, Mobile phone data, Transport modelling

Journal Title

Travel Behaviour and Society

Conference Name

Journal ISSN

2214-367X
2214-3688

Volume Title

25

Publisher

Elsevier BV
Sponsorship
Engineering and Physical Sciences Research Council (EP/N021614/1)
Engineering and Physical Sciences Research Council (EP/R035199/1)