scholarly journals Virtual Simulation of Electric Bus Fleets for City Bus Transport Electrification Planning

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3410 ◽  
Author(s):  
Jakov Topić ◽  
Jure Soldo ◽  
Filip Maletić ◽  
Branimir Škugor ◽  
Joško Deur
Keyword(s):  
Noise Pollution ◽  
Computationally Efficient ◽  
Powertrain Control ◽  
City Bus ◽  
Driving Cycles ◽  
Passenger Satisfaction ◽  
Electric Bus ◽  
Decision Making Processes ◽  
The City ◽  
Bus Transport

City bus transport electrification has a strong potential of improving city air quality, reducing noise pollution and increasing passenger satisfaction. Since the city bus operation is rather deterministic and intermittent, the driving range- and charging-related concerns may be effectively overcome by means of fast charging at end stations and/or slow charging in depot. In order to support decision making processes, a simulation tool for planning of city bus transport electrification has been developed and it is presented in this paper. The tool is designed to use real/recorded driving cycles and techno-economic data, in order to calculate the optimal type and number of e-buses and chargers, and predict the total cost of ownership including investment and exploitation cost. The paper focuses on computationally efficient e-bus fleet simulation including powertrain control and charging management aspects, which is illustrated through main results of a pilot study of bus transport electrification planning for the city of Dubrovnik.

scholarly journals Assessment of Passenger Satisfaction with Public Bus Transport Services: A Case Study of Lucknow City (India)

2016 ◽  
Vol 11 (3) ◽  
pp. 107-128 ◽  
Author(s):  
Sanjay Singh
Keyword(s):  
Principal Component Analysis ◽  
Service Quality ◽  
Principal Component ◽  
Component Analysis ◽  
Quality Attributes ◽  
Transport Services ◽  
Passenger Satisfaction ◽  
Bus Stops ◽  
The City ◽  
Bus Transport

AbstractThe main aim of this study is threefold. First, it tries to assess the passenger satisfaction with public bus transport services in the city of Lucknow in India. Second, it tries to examine the service quality attributes that influence the passenger satisfaction. Third, it tries to evaluate the relative importance of service quality attributes to find out the priority for service quality improvements to enhance passenger satisfaction. The study is based on a survey of objective as well as subjective questions conducted between May and July 2014. Five major bus stops of Lucknow were selected for the survey. Total 148 respondents were randomly selected to elicit their overall satisfaction and factors that influence their satisfaction in the use of public bus transport services in Lucknow using a self-rated questionnaire. The collected sample of responses is subjected to principal component analysis, a statistical technique for dimensionality reduction of the dataset, and descriptive analysis. The result of theses analyses shows that passengers are mostly dissatisfied with public bus transport services in Lucknow. Using principal component analysis, five underlying factors were extracted that influenced passenger satisfaction with public bus transport services in the city. Out of these five factors, comfort and safety has the greatest impact on overall satisfaction, followed by the adequacy of capacity of public bus transport services, orderly and clean environment inside buses, elegant design of buses and bus stops, and accessibility to public bus transport services in the city. The study thus provides a direction for public bus transport administration in the city to understand the gaps that exist and try to fill them to improve its services so that passenger satisfaction can be enhanced and consequently more people can be attracted towards public bus transport.

Indore City Bus Transport Service (A)

2010 ◽  
pp. 1-15
Author(s):  
G Raghuram ◽  
Satyam Shivam Sundaram
Keyword(s):  
Transport System ◽  
Public Transport ◽  
Madhya Pradesh ◽  
Transport Service ◽  
The Public ◽  
City Bus ◽  
Transport Services ◽  
The City ◽  
Public Transport Services ◽  
Bus Transport

Towards the end of 90s, mounting losses forced Madhya Pradesh State Road Transport Corporation (MPSRTC), the sole provider of public transport in Madhya Pradesh, to suspend their urban services. As a consequence, organized public transport services ceased to exist in Indore, the largest metropolitan city of the state of Madhya Pradesh. This void was filled by Intermediate Public Transport (IPT) consisting of minibuses, tempos and auto rickshaws. As of January 2004, 300 private minibuses, 150 tempos, and 10,000 auto rickshaws were plying as IPT, but with poor service levels. Lack of public transport was a catalyst for rapid increase in personalized vehicles, and high level of pollution and accidents. Worried over the rapid growth of personalized vehicles, and high levels of pollution and accidents in Indore, policy makers and administrators had made several attempts of reviving the public transport system in the city. In 2005, the Collector and District Magistrate of Indore decided to make another attempt of reviving the public transport. The two cases, Indore City Bus Transport Service (A) and Indore City Bus Transport Service (B) discuss the complexity involved in the planning, rolling out, and running of public transport services in Indore on a sustainable basis. Case (A) details the prevalent socio-economic condition, travel characteristics, and positions taken by various stakeholders on provisioning of public transport service in Indore as of November 2005. The readers have to conceptualize the transport system for the city and take the position of the Collector and District Magistrate of Indore to prepare a note that would be submitted to the state cabinet for their approval. Case (B) discusses the challenges during the growth and operation of the services as of June 2008.

Paper 13: The New Vöv (Public Transport Authority) Model O 305 Standard Service Bus

1969 ◽  
Vol 184 (19) ◽  
pp. 135-173
Author(s):  
W. Hornung
Keyword(s):  
Public Transport ◽  
Maximum Degree ◽  
Exhaust Emission ◽  
Hybrid Drive ◽  
The Public ◽  
City Bus ◽  
Electric Bus ◽  
And Performance ◽  
The City ◽  
Standard Service

If the drift to individual means of transport is to be avoided, the city bus must be made more attractive in its driving comfort and performance, and provide a maximum degree of safety. Vehicles of advanced design requiring a minimum of maintenance, and frames and superstructures constructed according to the latest conceptions, are absolutely necessary for an economic and reliable city bus. Easy-to-operate controls facilitate the driver's task and are an added safety measure. The standard O 305 regular service bus, designed in accordance with the regulations of the Public Transport Authority (Verband Öffentlicher Verkehrsbetriebe), meets these demands. The experimental electric bus with hybrid drive appears to be a solution to the exacting requirements of future traffic with regard to exhaust emission control.

scholarly journals Optimal Design of Electric Bus Transport Systems With Minimal Total Ownership Cost

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 119184-119199
Author(s):  
Mohamed Lotfi ◽  
Pedro Pereira ◽  
Nikolaos G. Paterakis ◽  
Hossam A. Gabbar ◽  
Joao P. S. Catalao
Keyword(s):  
Optimal Design ◽  
Transport Systems ◽  
Electric Bus ◽  
Bus Transport

scholarly journals Citizen Participation and Machine Learning for a Better Democracy

2021 ◽  
Author(s):  
Robert Procter ◽  
Miguel Arana-Catania ◽  
Felix-Anselm van Lier ◽  
Nataliya Tkachenko ◽  
Yulan He ◽  
...  
Keyword(s):  
Machine Learning ◽  
Citizen Participation ◽  
Language Processing ◽  
Information Overload ◽  
City Council ◽  
Decision Making Processes ◽  
Development Goals ◽  
Democratic Systems ◽  
The City

The development of democratic systems is a crucial task as confirmed by its selection as one of the Millennium Sustainable Development Goals by the United Nations. In this article, we report on the progress of a project that aims to address barriers, one of which is information overload, to achieving effective direct citizen participation in democratic decision-making processes. The main objectives are to explore if the application of Natural Language Processing (NLP) and machine learning can improve citizens? experience of digital citizen participation platforms. Taking as a case study the ?Decide Madrid? Consul platform, which enables citizens to post proposals for policies they would like to see adopted by the city council, we used NLP and machine learning to provide new ways to (a) suggest to citizens proposals they might wish to support; (b) group citizens by interests so that they can more easily interact with each other; (c) summarise comments posted in response to proposals; (d) assist citizens in aggregating and developing proposals. Evaluation of the results confirms that NLP and machine learning have a role to play in addressing some of the barriers users of platforms such as Consul currently experience.

A case study of noise pollution levels during the restrictions period due to COVID-19.

2021 ◽  
Vol 263 (6) ◽  
pp. 206-214
Author(s):  
David Montes-González ◽  
Juan Miguel Barrigón-Morillas ◽  
Ana Cristina Bejarano-Quintas ◽  
Manuel Parejo-Pizarro ◽  
Guillermo Rey-Gozalo ◽  
...  
Keyword(s):  
Noise Pollution ◽  
Urban Environments ◽  
Control Measures ◽  
Acoustic Measurements ◽  
Pollution Levels ◽  
The World ◽  
The Impact ◽  
The City

The pandemic of coronavirus disease (COVID-19) led to the need for drastic control measures around the world to reduce the impact on the health of the population. The confinement of people in their homes resulted in a significant reduction in human activity at every level (economic, social, industrial, etc.), which was reflected in a decrease in environmental pollution levels. Studying the evolution of parameters, such as the level of environmental noise caused by vehicle traffic in urban environments, makes it possible to assess the impact of this type of measure. This paper presents a case study of the acoustic situation in Cáceres (Spain) during the restriction period by means of long-term acoustic measurements at various points of the city.

Emissions and Noise Pollution Diagnosis of a Turbogas Power Plant During Commissioning Service

2010 ◽  
Author(s):  
Norberto Pe´rez Rodri´guez ◽  
Erik Rosado Tamariz ◽  
Rafael Garci´a Illescas
Keyword(s):  
Power Plant ◽  
Cooling System ◽  
Near Field ◽  
Noise Pollution ◽  
Point Of View ◽  
International Standards ◽  
Partial Load ◽  
The City ◽  
Permissible Deviation

This work is focused on the diagnosis of behavior, from the point of view of control emissions and noise level, of a power Turbogas plant during the process of commissioning, to guarantee that its operation complies with national and international standards. The environmental diagnosis of the power plant was developed as part of the performance evaluation of the unit. The conditions of the unit evaluation include operation at base load and partial load, as well as time periods for load changes. The evaluated power plant consists of an aeroderivative gas turbine installed in a simple cycle, operating with a cooling system (chiller) installed in the urban zone of Mexico City. Therefore, it should comply with the legislation and regulations of the city concerning air pollution and allowed noise, besides the international standards established by the manufacturer. The study includes emissions measurements using a Continuous Emissions Monitoring System installed in-situ, previously calibrated and checked during and after the test which was found inside the permissible deviation of 3%. Measurements were recorded at intervals of 5 minutes during test periods of 110 minutes for each load and 45 minutes for load changes. On the other hand, noise pressure evaluation was carried out in near field as well as far field produced by the power plant during operation. Measurements were carried out by using precision instruments installed specifically for it. A temporary system for obtaining data was used to monitoring the environmental conditions every 30 seconds. It was possible to verify that the turbogenerator complies with all noise levels and contaminant emissions requirements and regulations according to the limits established by the manufacturer and national and international standards.

Setting a course for marine mammal research in Western Australia

2018 ◽  
Vol 24 (3) ◽  
pp. 289 ◽  
Author(s):  
Kelly Waples ◽  
Holly Raudino
Keyword(s):  
Western Australia ◽  
Marine Mammals ◽  
Noise Pollution ◽  
Common Dolphin ◽  
Relevant Evidence ◽  
Priority Species ◽  
Decision Making Processes ◽  
Fundamental Research ◽  
Research Questions ◽  
By Catch

Given limited funding and increasing pressures on our natural resources it is becoming ever more critical that science be directed at improving our understanding and management of priority issues. This relies on dialogue and alignment between researchers and managers to ensure that appropriate questions are asked and the answers incorporated in robust and transparent decision-making processes which should include relevant evidence-based science. We used a prioritisation framework as a tool to bring managers and scientists together to discuss and agree on current priorities for research on marine mammals in Western Australia, including posing relevant questions. Eight species were identified as high priorities for fundamental research, including three dolphin species (Australian humpback, snubfin and common dolphin), three baleen whale species (Antarctic and pygmy blue and dwarf minke whale), the Australian sea lion and the dugong. The pressures we evaluated resulted in a priority need for research to better understand and mitigate impacts across a range of species, including noise pollution from shipping and vessel activity, climate change and fishing by-catch. Scientists and managers agreed on a set of topics and associated research questions for the high-priority species that would best inform ongoing conservation and management of marine mammals in Western Australia and that would have broad applicability nationally and globally. We provide an example of how these priorities can be used to develop a research program with targeted funding. Overall, this process has demonstrated the value of bringing scientists and managers together with a tool that allows them to jointly determine priorities and research questions.

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