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Roundtrip Carsharing in New York City: An Evaluation of a Pilot Program and System Impacts

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  • Martin, Elliot PhD
  • Stocker, Adam
  • Nichols, Aqshems
  • Shaheen, Susan PhD

Abstract

The study found that roundtrip carsharing in NYC mostly serves as a substitute for car rental, other personal vehicle modes, and personal vehicle ownership. The analysis showed that the broader pilot program had a modest impact on user behavior through carsharing (i.e., reduced vehicle ownership, reduced VMT, and mode shift). It also found that the pilot program likely expanded the membership base of carsharing to demographic cohorts that are traditionally underrepresented in carsharing populations (i.e., increased participation by lower education levels, lower household incomes, minority demographics). The study also examined vehicle ownership impacts and changes in vehicle miles traveled (VMT) and greenhouse gas (GHG) emissions. Analysis of survey and activity data indicated that 7% of NYC carsharing members avoided a car purchase, and 0.61% of members got rid of a car they already owned due to carsharing. Across the membership base, VMT was reduced by 7% and GHG emissions were reduced by 6%. These findings showed that carsharing reduced VMT and delivered associated environmental benefits within NYC, and more broadly had a substantive impact on travel behavior among members in form of mode shift away from personal automotive modes.

Suggested Citation

  • Martin, Elliot PhD & Stocker, Adam & Nichols, Aqshems & Shaheen, Susan PhD, 2021. "Roundtrip Carsharing in New York City: An Evaluation of a Pilot Program and System Impacts," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt5kb1r71v, Institute of Transportation Studies, UC Berkeley.
    • Handle: RePEc:cdl:itsrrp:qt5kb1r71v
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    References listed on IDEAS

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    1. Martin, Elliot & Shaheen, Susan Alison & Lidicker, Jeffrey, 2010. "Carsharing’S Impact On Household Vehicle Holdings: Results From A North American Shared-Use Vehicle Survey," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt0850h6r5, Institute of Transportation Studies, UC Berkeley.
    2. Martin, Elliot & Shaheen, Susan Alison & Lidicker, Jeffrey, 2010. "Carsharing’S Impact On Household Vehicle Holdings: Results From A North American Shared-Use Vehicle Survey," Institute of Transportation Studies, Working Paper Series qt0850h6r5, Institute of Transportation Studies, UC Davis.
    3. Martin, Elliot & Shaheen, Susan A & Lidicker, Jeffrey, 2010. "Carsharing's Impact on Household Vehicle Holdings: Resultsvfrom a North American Shared-Use Vehicle Survey," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt3bn9n6pq, Institute of Transportation Studies, UC Berkeley.
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    Cited by:

    1. Harold, Brian MBA & Rodier, Caroline PhD & Zhang, Yunwan MS, 2022. "Retrospective User Survey for a Rural Electric Vehicle Carsharing Pilot in California’s Central Valley," Institute of Transportation Studies, Working Paper Series qt5ks6j0qk, Institute of Transportation Studies, UC Davis.
    2. Shaheen, Susan A. & Pan, Alexandra, 2024. "Behavioral and Sociodemographic Impacts of Carsharing," Institute of Transportation Studies, Research Reports, Working Papers, Proceedings qt9qf5h094, Institute of Transportation Studies, UC Berkeley.
    3. Rodier, Caroline & Randall, Creighton & Garcia Sanchez, Juan Carlos & Harrison, Makenna & Francisco, Jerel & Tovar, Angelly, 2022. "Challenges and Opportunities for Publicly Funded Electric Vehicle Carsharing," Institute of Transportation Studies, Working Paper Series qt5nf0m5mc, Institute of Transportation Studies, UC Davis.
    4. Pan, Alexandra Q. & Martin, Elliot W. & Shaheen, Susan A., 2022. "Is access enough? A spatial and demographic analysis of one-way carsharing policies and practice," Transport Policy, Elsevier, vol. 127(C), pages 103-115.
    5. Lurdes Jesus Ferreira & Jieling Liu, 2023. "Social Determinants, Motivation, and Communication: How People Perceive and Choose Sustainable Mobility at a Local Level in Portugal," Sustainability, MDPI, vol. 15(18), pages 1-19, September.
    6. Ziad Yassine & Elliot W. Martin & Susan A. Shaheen, 2024. "Can Electric Vehicle Carsharing Bridge the Green Divide? A Study of BlueLA’s Environmental Impacts among Underserved Communities and the Broader Population," Energies, MDPI, vol. 17(2), pages 1-18, January.

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