An integrated mode choice and assignment model for the assessment of modal split in a logistics network
K.C. Ruigrok (TU Delft - Mechanical Engineering)
Bilge Atasoy – Mentor (TU Delft - Transport Engineering and Logistics)
E. van Hassel – Graduation committee member (TU Delft - Ship Design, Production and Operations)
MB Duinkerken – Graduation committee member (TU Delft - Transport Engineering and Logistics)
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Abstract
This study proposes an integrated mode choice and assignment model that combines the final steps in the classical four-step transport modelling approach. Using multi-objective optimisation, the model minimises service costs while simultaneously maximising the probability of mode selection. Compared to traditional sequential models, the integrated model prevents over-assignment to modes exceeding capacity. The model was then used to asses three key transport mode attributes—cost, capacity, and frequency—to evaluate their effect on the modal split, with a focus on increasing Inland Waterway Transport (IWT). Results showed that increasing road costs and IWT service frequency (with associated capacity growth) had the most impact on shifting modal share towards IWT. These findings demonstrate the potential of this integrated model to better evaluate policy impacts and inform transport planning.