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Carpooling Service for Large-Scale Taxicab Networks

Title
Carpooling Service for Large-Scale Taxicab Networks
Author(s)
Zhang, DeshengHe, TianZhang, FanLu, MingmingLiu, YunhuaiLee, HaengjuSon, Sang H.
Issued Date
2016-08
Citation
ACM Transactions on Sensor Networks, v.12, no.3
Type
Article
Author Keywords
AlgorithmsDesignExperimentationVerificationRidesharingtaxi networkfare modelapplication
Keywords
AlgorithmAlgorithmsApplicationApplicationsAutomobile DriversCloud ComputingComplex NetworksComprehensive EvaluationData-Driven SimulationDESIGNExperimentationFare ModelIncentive MechanismLinear ComplexityLinear ProgrammingOptimal AlgorithmPolynomial ComplexityRide-SharingRidesharingRoute CalculationsTaxi NetworkTaxicabsTransportationVerification
ISSN
1550-4859
Abstract
Carpooling has long held the promise of reducing gas consumption by decreasing mileage to deliver coriders. Although ad hoc carpools already exist in the real world through private arrangements, little research on the topic has been done. In this article, we present the first systematic work to design, implement, and evaluate a carpool service, called coRide, in a large-scale taxicab network intended to reduce total mileage for less gas consumption. Our coRide system consists of three components, a dispatching cloud server, passenger clients, and an onboard customized device, called TaxiBox. In the coRide design, in response to the delivery requests of passengers, dispatching cloud servers calculate cost-efficient carpool routes for taxicab drivers and thus lower fares for the individual passengers. To improve coRide's efficiency in mileage reduction, we formulate an NP-hard route calculation problem under different practical constraints. We then provide (1) an optimal algorithm using Linear Programming, (2) a 2-approximation algorithm with a polynomial complexity, and (3) its corresponding online version with a linear complexity. To encourage coRide's adoption, we present a win-win fare model as the incentive mechanism for passengers and drivers to participate.We test the performance of coRide by a comprehensive evaluation with a real-world trial implementation and a data-driven simulation with 14,000 taxi data from the Chinese city Shenzhen. The results show that compared with the ground truth, our service can reduce 33% of total mileage; with our win-win fare model, we can lower passenger fares by 49% and simultaneously increase driver profit by 76%. © 2016 ACM.
URI
http://hdl.handle.net/20.500.11750/2222
DOI
10.1145/2897517
Publisher
Association for Computing Machinery
Related Researcher
  • 손상혁 Son, Sang Hyuk
  • Research Interests Real-time system; Wireless sensor network; Cyber-physical system; Data and event service; Information security; 실시간 임베디드 시스템
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Appears in Collections:
Department of Electrical Engineering and Computer Science RTCPS(Real-Time Cyber-Physical Systems) Lab 1. Journal Articles
Department of Electrical Engineering and Computer Science Information and Communication Engineering Research Center 1. Journal Articles

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