Beyond Traditional Public Transport: A Cost–Benefit Analysis of First and Last-Mile AV Solutions in Periurban Environment

Félix Carreyre (), Tarek Chouaki, Nicolas Coulombel, Jaâfar Berrada, Laurent Bouillaut and Sebastian Hörl
Additional contact information
Félix Carreyre: Institut VEDECOM, 23 bis Allée des Marronniers, 78000 Versailles, France
Tarek Chouaki: Laboratoire Génie Industriel, CentraleSupelec, 91190 Gif-sur-Yvette, France
Nicolas Coulombel: Laboratoire Ville Mobilité Transport, Ecole des Ponts, Université Gustave Eiffel, 77420 Champs-sur-Marne, France
Jaâfar Berrada: Institut VEDECOM, 23 bis Allée des Marronniers, 78000 Versailles, France
Laurent Bouillaut: COSYS/GRETTIA, Université Gustave Eiffel, 77454 Marne-la-Vallée, France
Sebastian Hörl: Institut de Recherche Technologique SystemX, 2 Boulevard Thomas Gobert, 91120 Palaiseau, France

Sustainability, 2025, vol. 17, issue 14, 1-27

Abstract: With the advent of Autonomous Vehicles (AV) technology, extensive research around the design of on-demand mobility systems powered by such vehicles is performed. An important part of these studies consists in the evaluation of the economic impact of such systems for involved stakeholders. In this work, a cost–benefit analysis (CBA) is applied to the introduction of AV services in Paris-Saclay, an intercommunity, south of Paris, simulated through MATSim, an agent-based model capable of capturing complex travel behaviors and dynamic traffic interactions. AVs would be implemented as a feeder service, first- and last-mile service to public transit, allowing intermodal trips for travelers. The system is designed to target the challenges of public transport accessibility in periurban areas and high private car use, which the AV feeder service is designed to mitigate. To our knowledge, this study is one of the first CBA analyses of an intermodal AV system relying on an agent-based simulation. The introduction of AV in a periurban environment would generate more pressure on the road network (0.8% to 1.7% increase in VKT for all modes, and significant congestion around train stations) but would improve traveler utilities. The utility gains from the new AV users benefiting from a more comfortable mode offsets the longer travel times from private car users. A Stop-Based routing service generates less congestion than a Door-to-Door routing service, but the access/egress time counterbalances this gain. Finally, in a periurban environment where on-demand AV feeder service would be added to reduce the access and egress cost of public transit, the social impact would be nuanced for travelers (over 99% of gains captured by the 10% of most benefiting agents), but externality would increase. This would benefit some travelers but would also involve additional congestion. In that case, a Stop-Based routing on a constrained network (e.g., existing bus network) significantly improves economic viability and reduces infrastructure costs and would be less impacting than a Door-to-Door service.

Keywords: autonomous vehicles; mobility simulation; economic evaluation; transport; cost–benefit analysis (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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