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A Big Data Demand Estimation Framework for Multimodal Modelling of Urban Congested Networks

  • Guido Cantelmo
  • Francesco VitiEmail author
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 879)

Abstract

This paper deals with the problem of estimating daily mobility flows using different sources of data, and in particular from mobile devices, such as mobile phones and floating car data. We show how mobile phone data can be used to better estimate the structure of the demand matrix, both temporally (i.e. the daily generated flows from each zone) and spatially (i.e. distributing the flows on the different OD pairs). Then, floating car data together with traffic counts can be used to further distribute the demand on the available modes and routes. During this phase, a behavioral modelling approach is used, according to traditional dynamic user equilibrium using a joint route and departure time choice model. Floating car data information is used to estimate speed profiles at all links where information is available, and for route travel times, which feed the utility-based models. A two-step approach is then proposed to solve the problem for large scale networks, in which the total demand is first generated, and then equilibrium is calculated through a dynamic traffic assignment model. The effectiveness and reliability of the proposed modelling framework is shown on a realistic case study involving the road network of Luxembourg City and its surroundings, and is compared to the traditional bi-level formulation solved using the Generalized Least Square (GLS) Estimation. The comparison shows how the two-step approach is more robust in generating realistic daily OD flows, and in exploiting the information collected from mobile sensors.

Keywords

Dynamic OD estimation Big mobility data Two-Steps approach 

Notes

Acknowledgements

The authors acknowledge the FNR for providing the financing grant: AFR-PhD grant 6947587 IDEAS. We also like to thank Motion-S Luxembourg for providing Speed data.

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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.University of LuxembourgEsch-Sur-AlzetteLuxembourg

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