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Open Access Publications from the University of California

Carsharing and Carfree Housing: Predicted Travel, Emission, and Economic Benefits: A Case Study of the Sacramento, California Region


In this paper, researchers present simulation findings from three innovative mobility scenarios (forecast to 2025) using an advanced regional travel demand model. This model was employed to approximate the effects of transit-based carsharing (short-term vehicle access linked to transit), real-time transit information services, and carfree housing (residential developments designed with limited parking provisions) in the Sacramento region. The scenarios are evaluated against travel, emission, and economic benefits criteria. The results indicate relatively modest reductions in vehicle travel and emissions, in part, due to limited transit service penetration in the region. Despite the modest travel effects of the scenarios, the economic analysis indicates a net benefit for all of the innovative mobility scenarios. The total per trip benefit ranges from $0.01 to $0.05. The yearly total benefit for all scenarios would be significant.

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