scholarly journals A unified activity-based framework for one-way car-sharing services in multi-modal transportation networks

2022 ◽  
Vol 157 ◽  
pp. 102551
Author(s):  
Tri K. Nguyen ◽  
Nam H. Hoang ◽  
Hai L. Vu
Keyword(s):  
Transportation Networks ◽  
Car Sharing

Cognitive aspects of car sharing in Millennials. Active sharers and reluctant users

2018 ◽  
pp. 39-62 ◽  
Author(s):  
Giovanna Magnani ◽  
Tommaso Bertolotti ◽  
Antonella Zucchella
Keyword(s):  
Car Sharing

Best Neighbor Heuristic Search for Finding Minimum Paths in Transportation Networks

1998 ◽  
Vol 1651 (1) ◽  
pp. 48-52 ◽  
Author(s):  
Jeffrey L. Adler
Keyword(s):  
Heuristic Search ◽  
Transportation Networks ◽  
Transportation Network ◽  
Search Problems ◽  
A Algorithm ◽  
Running Time ◽  
Search Effort ◽  
Wide Range ◽  
Path Search ◽  
Sparse Networks

For a wide range of transportation network path search problems, the A* heuristic significantly reduces both search effort and running time when compared to basic label-setting algorithms. The motivation for this research was to determine if additional savings could be attained by further experimenting with refinements to the A* approach. We propose a best neighbor heuristic improvement to the A* algorithm that yields additional benefits by significantly reducing the search effort on sparse networks. The level of reduction in running time improves as the average outdegree of the network decreases and the number of paths sought increases.

Economic and Legal Bases of Using Car-Sharing Business Models in Ukraine

2020 ◽  
pp. 75-85
Author(s):  
Oleksandr M. Matsenko ◽  
Tetiana М. Malanchuk ◽  
Vladyslav S. Popov ◽  
Vladyslav S. Piven ◽  
Evhenyi O. Skrypka
Keyword(s):  
Business Model ◽  
Business Models ◽  
Swot Analysis ◽  
Road Traffic ◽  
Economic Benefits ◽  
Car Sharing ◽  
Bibliographic Analysis ◽  
Economic Method ◽  
Logical Sequence ◽  
Study Results

This article summarizes the concept of sharing, bibliographic analysis of publications in the field of car-sharing based on the Scopus database. The primary purpose of the study is to study the economic and legal basis for the development of car-sharing business models in Ukraine. Systematization of literature sources and approaches devoted to the economic efficiency of the implementation of car-sharing business models has shown that in Ukraine, this issue is almost not paid attention to in the economic, scientific sphere, and legal, scientific areas. The urgency of solving this scientific problem lies in the need and ability to relieve road traffic from traffic jams, reducing the average downtime of vehicles, as well as economic benefits for entities (vehicle owners and passengers) involved in sharing business models. The research has the following logical sequence: the types of car-sharing business models were analyzed, and their comparative characteristics were carried out; the economic and legal preconditions of car-sharing business development in Ukraine are investigated. The research identifies legislative obstacles to the establishment of a car-sharing company in Ukraine. A SWOT analysis of the conditions for implementing a car-sharing business model in Ukraine was performed. It analyses the costs and efficiency of creating a business based on a car-sharing business model in Ukraine on a conditional example. We propose to use system-structural and comparative analysis to analyze the problems of modern transport, methods of formal-logical analysis for determining the directions of development of car-sharing business models, and economic method for assessing the effect and a payback period of the proposed project car-sharing business model. The study results can be useful for the development of the car-sharing business in Ukraine, for entrepreneurs, scientists, and vehicle owners. Keywords: car-sharing, car-sharing business model, car-sharing business, motor transport, hire, expenses, analysis.

scholarly journals A Middleware-Based Approach for Multi-Scale Mobility Simulation

2021 ◽  
Vol 13 (2) ◽  
pp. 22
Author(s):  
Xavier Boulet ◽  
Mahdi Zargayouna ◽  
Gérard Scemama ◽  
Fabien Leurent
Keyword(s):  
Modeling And Simulation ◽  
Transportation Networks ◽  
External Control ◽  
Independent Mobility ◽  
Time Step ◽  
Time Representation ◽  
Multi Scale ◽  
Networks Analysis ◽  
Maximal Benefit ◽  
Do So

Modeling and simulation play an important role in transportation networks analysis. In the literature, authors have proposed many traffic and mobility simulations, with different features and corresponding to different contexts and objectives. They notably consider different scales of simulations. The scales refer to the represented entities, as well as to the space and the time representation of the transportation environment. However, we often need to represent different scales in the same simulation, for instance to represent a neighborhood interacting with a wider region. In this paper, we advocate for the reuse of existing simulations to build a new multi-scale simulation. To do so, we propose a middleware model to couple independent mobility simulations, working at different scales. We consider all the necessary processing and workflow to allow for a coherent orchestration of these simulations. We also propose a prototype implementation of the middleware. The results show that such a middleware is capable of creating a new multi-scale mobility simulation from existing ones, while minimizing the incoherence between them. They also suggest that, to have a maximal benefit from the middleware, existing mobility simulation platforms should allow for an external control of the simulations, allowing for executing a time step several times if necessary.

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