A new shared vehicle system for urban areas

Cepolina, Elvezia Maria; Farina, Alessandro

doi:10.1016/j.trc.2011.10.005

Cited by 100 publications

(50 citation statements)

References 8 publications

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“…This system uses a homogeneous fleet of eco-friendly vehicles and allows one-way trips (Cepolina & Farina, 2012). The stations are parking lots that offer vehicle recharging services and are located at inter-modal transfer points and near major attraction sites within a pedestrian area.…”

Section: Models For Strategic Planning Decisionsmentioning

confidence: 99%

An optimization framework for the development of efficient one-way car-sharing systems

Boyacı

Zografos

Geroliminis

2015

European Journal of Operational Research

361

174

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a b s t r a c tElectric vehicle-sharing systems have been introduced to a number of cities as a means of increasing mobility, reducing congestion, and pollution. Electric vehicle-sharing systems can offer one or two-way services. One-way systems provide more flexibility to users since they can be dropped-off at any station. However, their modeling involves a number of complexities arising from the need to relocate vehicles accumulated at certain stations. The planning of one-way electric vehicle-sharing systems involves a host of strongly interacting decisions regarding the number, size and location of stations, as well as the fleet size.In this paper we develop and solve a multi-objective MILP model for planning one-way vehicle-sharing systems taking into account vehicle relocation and electric vehicle charging requirements. For real world problems the size of the problem becomes intractable due to the extremely large number of relocation variables. In order to cope with this problem we introduce an aggregate model using the concept of the virtual hub. This transformation allows the solution of the problem with a branch-and-bound approach.The proposed approach generates the efficient frontier and allows decision makers to examine the trade-off between operator's and users' benefits. The capabilities of the proposed approach are demonstrated on a large scale real world problem with available data from Nice, France. Extensive sensitivity analysis was performed by varying demand, station accessibility distance and subsidy levels. The results provide useful insights regarding the efficient planning of one-way electric vehicle-sharing systems and allow decision makers to quantify the trade-off between operator's and users' benefits.

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Section: Models For Strategic Planning Decisionsmentioning

confidence: 99%

An optimization framework for the development of efficient one-way car-sharing systems

Boyacı

Zografos

Geroliminis

2015

European Journal of Operational Research

361

174

View full text Add to dashboard Cite

show abstract

“…Relocation mechanisms that seek to alleviate this imbalance have been investigated by several research groups [17,18]. For instance, Barth et al [19] introduce a user-based relocation mechanism that encourages users to share or split rides depending on system-wide demand.…”

Section: Carsharingmentioning

confidence: 99%

In free float: Developing Business Analytics support for carsharing providers

Wagner

Brandt

Neumann

2016

Omega

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“…Moreover, since the research space is extremely large, simulated annealing has been chosen for solving the minimization problem. Further details are shown in Cepolina et al [4].…”

Section: Fleet Optimizationmentioning

confidence: 99%

“…For the operator-based strategies, an optimization procedure has been proposed by Kek et al [3] for assessing the staff strength and the shift hours which maximize the system performance. As it concerns the fully user-based strategies, a procedure for finding the fleet dimension and its distribution among the stations that maximize the system performance has been proposed by Cepolina and Farina [4]. Several authors, such as Shaheen et al [5], focus on modal split issues: the capability of these new transport systems to attract users from private transport modes.…”

Section: Introductionmentioning

confidence: 99%

Urban car sharing: an overview of relocation strategies

Cepolina

Farina

2012

WIT Transactions on the Built Environment

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Traditional car sharing systems are round trip shared vehicle systems and require advance reservations. The advances of GPS, communication techniques and vehicle automation allow us to improve car-sharing systems and to provide users with greater flexibility. As it concerns reservation, new car sharing systems offer users open-ended reservation and/or instant access. As it concerns the trip topology, new car sharing systems are multiple station shared vehicle systems (MSSVS). Round trips still occur in this type of system; however there are a large number of one-way trips made between the multiple stations. Operating an MSSVS is much more difficult than operating a round trip shared vehicle system. The problem is that the system can quickly become imbalanced with respect to the number of vehicles at the multiple stations. A review of user-based and operator-based relocation strategies is provided in the paper, as well as some details about some new possible car sharing systems, where vehicles are fully automated and can be accessed from any point within the intervention area.

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A new shared vehicle system for urban areas

Cited by 100 publications

References 8 publications

An optimization framework for the development of efficient one-way car-sharing systems

An optimization framework for the development of efficient one-way car-sharing systems

In free float: Developing Business Analytics support for carsharing providers

Urban car sharing: an overview of relocation strategies

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