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Computer Science > Multiagent Systems

arXiv:2108.05995 (cs)
[Submitted on 12 Aug 2021]

Title:Screenline-based Two-step Calibration and its application to an agent-based urban freight simulator

Authors:Yusuke Hara, Takanori Sakai, André Romano Alho, Moshe Ben-Akiva
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Abstract:Calibration is an essential process to make an agent-based simulator operational. Especially, the calibration for freight demand is challenging due to the model complexity and the shortage of available freight demand data compared with passenger data. This paper proposes a novel calibration method that relies solely on screenline counts, named Screenline-based Two-step Calibration (SLTC). SLTC consists of two parts: (1) tour-based demand adjustment and (2) model parameter updates. The former generates screenline-based tours by cloning/removing instances of the simulated goods vehicle tours, aiming to minimize the gaps between the observed and the simulated screenline counts. The latter updates the parameters of the commodity flow model which generates inputs to simulate goods vehicle tours. To demonstrate the practicality of the proposed method, we apply it to an agent-based urban freight simulator, SimMobility Freight. The result shows that SLTC allows the simulator to replicate the observed screenline counts with reasonable computational cost for calibration.
Subjects: Multiagent Systems (cs.MA); Systems and Control (eess.SY)
Cite as: arXiv:2108.05995 [cs.MA]
  (or arXiv:2108.05995v1 [cs.MA] for this version)
  https://doi.org/10.48550/arXiv.2108.05995

Submission history

From: Yusuke Hara [view email]
[v1] Thu, 12 Aug 2021 23:08:31 UTC (2,033 KB)
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