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Interactions Between Climate Policy and Technology-influenced Travel Behavior: Mitigating Induced Demand from CACC

Auld, Joshua·Zuniga-Garcia, Natalia·Waddell, Paul·de Souza, Felipe·Loughlin, Dan·Chou, Danielle
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Abstract

Advances in vehicle technology have influenced the development of automated vehicle systems, where vehicles that do not require human intervention are already deployed in the roadway networks. While these advances are proved to increase roadway safety and highway capacity, more research is needed to understand the long-term and regional-level impacts on mobility, land use, energy consumption, and emissions. This study proposes a multi-model approach to analyze the effect of vehicle automation and deep decarbonization policies over a period from 2020 to 2040 in Austin, Texas. We use the Global Change Analysis Model (GCAM) to develop internally the scenarios that are then passed to the SMART Mobility modeling workflow, a large-scale simulation framework combining the POLARIS activity-based travel demand model and mesoscopic traffic simulator with the Autonomie vehicle energy consumption model and the UrbanSim land use simulator. Results suggest that the introduction of vehicles with advanced automation could increase fuel consumption when no decarbonization policies are implemented. Also, advances in vehicle technology research and development could lead to a decline in energy use in the long-term. Energy pricing and vehicle electrification incentives could help reduce the impact of vehicle automation. Finally, our analysis indicates the relevance of introducing land use processes in longterm vehicle automation studies.

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land useactivity-based modelsautonomous vehiclesCACCemissionsenergytransportation simulation

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Auld, Joshua, Zuniga-Garcia, Natalia, Waddell, Paul, de Souza, Felipe, Loughlin, Dan, Chou, Danielle. 2026-01-01. Interactions Between Climate Policy and Technology-influenced Travel Behavior: Mitigating Induced Demand from CACC. https://doi.org/10.1177/03611981261437050

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