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Design and operation of efficient and budget-balanced shared-use mobility systems

dc.contributor.authorMasoud, Nedaen_US
dc.contributor.authorTafreshian, Amirmahdien_US
dc.date.accessioned2021-05-10T19:52:17Z
dc.date.issued2021-05
dc.identifier.citationMasoud, N., Tafreshian, A. (2021). Design and Operation of efficient and budget-balanced shared-use mobility systems. Final Report. USDOT CCAT Project No. 12.en_US
dc.identifier.other69A3551747105en_US
dc.identifier.otherCCAT Project Number 12en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/167380
dc.descriptionFinal Reporten_US
dc.description.abstractTraffic congestion has become a serious issue around the globe, partly owing to single-occupancy commuter trips. Ridesharing can present a suitable alternative for serving commuter trips. However, there are several important obstacles that impede ridesharing systems from becoming a viable mode of transportation, including the lack of a guarantee for a ride back home as well as the difficulty of obtaining a critical mass of participants. This paper addresses these obstacles by introducing a Traveler Incentive Program (TIP) to promote community-based ridesharing with a ride-back home guarantee among commuters. The TIP program allocates incentives to (1) directly subsidize a select set of ridesharing rides, and (2) encourage a few, carefully selected set of travelers to change their travel behavior (i.e., departure or arrival times). We formulate the underlying ride-matching problem as a budget-constrained min-cost flow problem, and present a Lagrangian Relaxation-based algorithm with a worst-case optimality bound to solve large-scale instances of this problem in polynomial time. We further propose a polynomial-time budget-balanced version of the problem. Numerical experiments suggest that allocating subsidies to change travel behavior is significantly more beneficial than directly subsidizing rides. Furthermore, using a flat tax rate as low as 1\% can double the system's social welfare in the budget-balanced variant of the incentive program.en_US
dc.format.extent55en_US
dc.languageEnglishen_US
dc.publisherUniversity of Michigan, Ann Arbor, Transportation Research Instituteen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subject.otherP2P ridesharingen_US
dc.subject.otherincentive designen_US
dc.subject.othercommunity-based ridesharingen_US
dc.subject.othermonetary subsidyen_US
dc.subject.otherbudget-constrained flow problemen_US
dc.subject.otherguaranteed ride-back homeen_US
dc.titleDesign and operation of efficient and budget-balanced shared-use mobility systemsen_US
dc.typeTechnical Report
dc.subject.hlbsecondlevelTransportation
dc.subject.hlbtoplevelEngineering
dc.contributor.affiliationumUniversity of Michigan Transportation Research Institute
dc.contributor.affiliationumcampusAnn Arbor
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/167380/1/Design and operation of efficient and budget-balanced shared-use mobility systems.pdf
dc.identifier.doihttps://dx.doi.org/10.7302/1055
dc.identifier.orcid0000-0003-1175-0707en_US
dc.identifier.orcid0000-0002-6526-3317en_US
dc.description.filedescriptionDescription of Design and operation of efficient and budget-balanced shared-use mobility systems.pdf : Final Report
dc.identifier.name-orcidTafreshian, Amirmahdi; 0000-0003-1175-0707en_US
dc.identifier.name-orcidMasoud, Neda; 0000-0002-6526-3317en_US
dc.working.doi10.7302/1055en_US
dc.owningcollnameCivil & Environmental Engineering (CEE)


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