Cybersecurity in Electric Bus Public Transport Systems

Electrifying public bus transportation is a critical step in reaching net-zero goals. In this paper, the focus is on the problem of optimal scheduling of an electric bus (EB) fleet to cover a public transport timetable. The problem is modelled using a mixed integer program (MIP) in which the charging time of an EB is pertinent to the battery’s state-of-charge level. To be able to solve large problem instances corresponding to real-world applications of the model, a metaheuristic approach is investigated. To be more precise, a greedy randomized adaptive search procedure (GRASP) algorithm is developed and its performance is evaluated against optimal solutions acquired using the MIP. The GRASP algorithm is used for case studies on several public transport systems having various properties and sizes. The analysis focuses on the relation between EB ranges (battery capacity) and required charging rates (in kW) on the size of the fleet needed to cover a public transport timetable. The results of the conducted computational experiments indicate that an increase in infrastructure investment through high speed chargers can significantly decrease the size of the necessary fleets. The results also show that high speed chargers have a more significant impact than an increase in battery sizes of the EBs.

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Railway applications. Electrical lighting for rolling stock in public transport systems

10.3403/30195290 ◽

2012 ◽

Keyword(s):

Public Transport ◽

Transport Systems ◽

Rolling Stock

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Intelligent transport systems. Public transport. Open API for distributed journey planning

10.3403/30356740 ◽

2017 ◽

Keyword(s):

Public Transport ◽

Transport Systems ◽

Intelligent Transport Systems ◽

Intelligent Transport ◽

Open Api

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Intelligent transport systems. Public transport user information

10.3403/bsiso17185 ◽

2015 ◽

Keyword(s):

Public Transport ◽

Transport Systems ◽

Intelligent Transport Systems ◽

Intelligent Transport

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Toward Enhancing The Contribution Of The Passengers In Funding The Operating Costs Of Urban Public Transport Systems : Case Study Of The Tram Of Algiers Algeria

10.34118/0136-000-041-019 ◽

2016 ◽

pp. 1

Author(s):

Chakeur Belakhdar ◽

Faries Boubakour

Keyword(s):

Public Transport ◽

Operating Costs ◽

Transport Systems ◽

Urban Public Transport

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A GIS-Based Methodology for Evaluating the Increase in Multimodal Transport between Bicycle and Rail Transport Systems. A Case Study in Palermo

ISPRS International Journal of Geo-Information ◽

10.3390/ijgi10050321 ◽

2021 ◽

Vol 10 (5) ◽

pp. 321

Author(s):

Alessandro Emilio Capodici ◽

Gabriele D’Orso ◽

Marco Migliore

Keyword(s):

High School ◽

Public Transport ◽

Choice Model ◽

Rail Transport ◽

Transport Systems ◽

Sustainable Mobility ◽

Transit System ◽

Modal Choice ◽

Transport Services ◽

Multimodal Transport

Background: In a world where every municipality is pursuing the goals of more sustainable mobility, bicycles play a fundamental role in getting rid of private cars and travelling by an eco-friendly mode of transport. Additionally, private and shared bikes can be used as a feeder transit system, solving the problem of the first- and last-mile trips. Thanks to GIS (Geographic Information System) software, it is possible to evaluate the effectiveness of such a sustainable means of transport in future users’ modal choice. Methods: Running an accessibility analysis of cycling and rail transport services, the potential mobility demand attracted by these services and the possible multimodality between bicycle and rail transport systems can be assessed. Moreover, thanks to a modal choice model calibrated for high school students, it could be verified if students will be really motivated to adopt this solution for their home-to-school trips. Results: The GIS-based analysis showed that almost half of the active population in the study area might potentially abandon the use of their private car in favour of a bike and its combination with public transport systems; furthermore, the percentage of the students of one high school of Palermo, the Einstein High School, sharply increases from 1.5% up to 10.1%, thanks also to the combination with the rail transport service. Conclusions: The GIS-based methodology shows that multimodal transport can be an effective way to pursue a more sustainable mobility in cities and efficiently connect suburbs with low-frequent public transport services to the main public transport nodes.

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Implementing Electromobility in Public Transport in Poland in 1990–2020. A Review of Experiences and Evaluation of the Current Development Directions

Sustainability ◽

10.3390/su13074009 ◽

2021 ◽

Vol 13 (7) ◽

pp. 4009

Author(s):

Marcin Połom ◽

Paweł Wiśniewski

Keyword(s):

Electric Vehicles ◽

Public Transport ◽

Online Survey ◽

Small Towns ◽

The European Union ◽

Operational Capabilities ◽

Electric Bus ◽

Low Emission ◽

National Programs ◽

Regional Authorities

Public transport has undergone major changes in recent years. In particular, they relate to the issue of environmental impact. Due to the significant emission of pollutants from the economy, in particular from the transport segment, member states of the European Union have taken measures to limit its scope. Only low-emission and zero-emission vehicles are to be used in transport, and mainly those that are powered by electricity in public transport. The development of battery technologies has led to a revolution in the range and operational capabilities of electric buses in the last decade. They have become a seemingly easy alternative to traditional electric vehicles in public transport—trams and trolleybuses. This article presents the possibilities and limitations of the development of public transport in Poland based on electric buses. An attempt was made to review the literature and compare the possibility of the functioning of buses, trams and trolleybuses in the Polish socio-economic, environmental and technological conditions. The article was based on a literature query, an analysis of unpublished materials, and a qualitative analysis of national programs endorsing the idea of electromobility as well as an online survey on the perception of electric public transport. The main goal of the article was to identify and evaluate the possibilities of developing public transport in Poland with the use of electric buses. The main results of the work include the demonstration that the optics of the national and regional authorities in Poland are focused mainly on electric buses without a thorough analysis of the legitimacy of their operation, especially in small towns. The incentive in the form of subsidizing the purchase of an electric bus is sufficient for them, and the future effects of using electric buses are not investigated.

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