Accounting for intra-household joint travel in agent-based transport simulations

Javaudin Lucas, Araldo Andrea and Coulombel Nicolas
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Javaudin Lucas: LVMT - Laboratoire Ville, Mobilité, Transport - Université Gustave Eiffel - ENPC - École nationale des ponts et chaussées - IP Paris - Institut Polytechnique de Paris, SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux - TSP - Télécom SudParis - IMT - Institut Mines-Télécom [Paris] - IP Paris - Institut Polytechnique de Paris
Araldo Andrea: SAMOVAR - Services répartis, Architectures, MOdélisation, Validation, Administration des Réseaux - TSP - Télécom SudParis - IMT - Institut Mines-Télécom [Paris] - IP Paris - Institut Polytechnique de Paris
Coulombel Nicolas: LVMT - Laboratoire Ville, Mobilité, Transport - Université Gustave Eiffel - ENPC - École nationale des ponts et chaussées - IP Paris - Institut Polytechnique de Paris

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Abstract: Intra-household joint home-based tours - trips in which household members depart together, engage in shared activities, and return together - represent a significant share of daily travel, yet are systematically ignored in transport simulations. Conflating joint and solo tours within a single mode choice framework introduces bias in preference parameter estimates. This paper proposes a three-step methodology to integrate joint tours in agent-based transport models: a Random Forest classifier to identify joint tours, a Multinomial Logit model estimating mode choice specific to joint tours, and a Penalized Logistic Regression for driver/passenger assignment. Applied to the Paris region using household travel survey data, the methodology successfully replicates observed joint tour shares and mode distributions in a synthetic population. The proposed framework enables more reliable evaluation of policies whose impacts differ between joint and solo travel, such as HOV lanes or family transit fare discounts.

Keywords: agent-based modelling family carpooling intra-household interactions mode choice synthetic population; synthetic population; mode choice; intra-household interactions; family carpooling; agent-based modelling; Synthetic population; Mode choice; Intra-household interaction; Family carpooling; Agent-based modeling (search for similar items in EconPapers)
Date: 2026-08-20
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Persistent link: https://EconPapers.repec.org/RePEc:hal:wpaper:hal-05721741

DOI: 10.48550/arXiv.2608.18657

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