Impact of Shared E-scooter Introduction on Public Transport Demand: A Case Study in Santiago, Chile

• URL: http://arxiv.org/abs/2409.17814v2
• Date: Fri, 13 Jun 2025 19:10:39 GMT
• Title: Impact of Shared E-scooter Introduction on Public Transport Demand: A Case Study in Santiago, Chile
• Authors: Daniela Opitz, Eduardo Graells-Garrido, Jacqueline Arriagada, Matilde Rivas, Natalia Meza,
• Abstract summary: This study examines how the introduction of shared electric scooters (e-scooters) affects public transport demand in Santiago, Chile.<n>We used smart card data from the integrated public transport system of Santiago and GPS traces from e-scooter trips during the initial deployment period.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This study examines how the introduction of shared electric scooters (e-scooters) affects public transport demand in Santiago, Chile, analyzing whether they complement or substitute for existing transit services. We used smart card data from the integrated public transport system of Santiago and GPS traces from e-scooter trips during the initial deployment period. We employed a difference-in-differences approach with negative binomial regression models across three urban regions identified through k-means clustering: Central, Intermediate, and Peripheral. Results reveal spatially heterogeneous effects on public transport boardings and alightings. In the Central Region, e-scooter introduction was associated with significant substitution effects, showing a 23.87% reduction in combined bus and metro boardings, suggesting e-scooters replace short public transport trips in high-density areas. The Intermediate Region showed strong complementary effects, with a 33.6% increase in public transport boardings and 4.08% increase in alightings, indicating e-scooters successfully serve as first/last-mile connectors that enhance transit accessibility. The Peripheral Region exhibited no significant effects. Metro services experienced stronger impacts than bus services, with metro boardings increasing 9.77\% in the Intermediate Region. Our findings advance understanding of micromobility-transit interactions by demonstrating that both substitution and complementarity can coexist within the same urban system, depending on local accessibility conditions. These results highlight the need for spatially differentiated mobility policies that recognize e-scooters' variable roles across urban environments.

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