Strategic Study on Metro Train Comfortableness Based Operation

2011 ◽  
Vol 328-330 ◽  
pp. 2014-2018
Author(s):  
Chao Ming He ◽  
Huan Li ◽  
Guo Sheng Fei ◽  
Qiang Wang
Keyword(s):  
Energy Consumption ◽  
Objective Function ◽  
Public Transport ◽  
Time Saving ◽  
Urban Public Transport ◽  
Train Operation ◽  
Drive Speed ◽  
Time Savings ◽  
Strategic Study ◽  
Metro System

Reliving the stress of the urban public transport, the metro system is greatly superior to other transport methods on the load, energy consumption, mean drive speed, arrival on time and comfortableness. The passengers comfortable is the important part for developing the train operation strategies. For optimization of the energy, time saving and the passengers comfortableness during operation of the train, the proper objective function is designed. The train operation strategy for meeting the inter-stop passengers comfortableness at the curves was developed and the energy and time savings of the section were combined, and the optimization operation plan for the whole line was designed, to better meet the metro train operation.

Energy-Efficient Train Operation Strategy with Speed Profiles Selection for an Urban Metro Line

2019 ◽  
Vol 2673 (4) ◽  
pp. 348-360 ◽  
Author(s):  
Pengli Mo ◽  
Lixing Yang ◽  
Ziyou Gao
Keyword(s):  
Energy Consumption ◽  
Programming Model ◽  
Computational Time ◽  
Speed Profile ◽  
Operational Environment ◽  
Passenger Demand ◽  
Proposed Model ◽  
Train Operation ◽  
Automatic Train Operation ◽  
Metro System

In the daily operations of a metro system, physical trains track the speed profiles which are embedded in the automatic train operation (ATO) system, and the speed profile plays a key role in determining both energy consumption and travel time. With consideration of the real-world operational environment and uncertain levels of passenger demand, this study specifically proposes an integer programming model with respect to energy consumption to generate a robust operational strategy which determines the speed profile choice on each segment. Because of the computational complexity of the proposed model, a heuristic algorithm is designed, which combines a genetic algorithm (GA) and a nomadic algorithm (NA), to find a good solution in acceptable computational time. Finally, numerical experiments based on the Beijing Yizhuang metro line are implemented to verify the effectiveness and efficiency of this approach.

scholarly journals Modelling and Assessing Energy Performance of an Urban Transport System with Electric Drives

2013 ◽  
Vol 25 (5) ◽  
pp. 495-506 ◽  
Author(s):  
Ioan Felea ◽  
Istvan Csuzi ◽  
Eva Barla
Keyword(s):  
Sustainable Development ◽  
Energy Consumption ◽  
Transport System ◽  
Public Transport ◽  
Electric Energy ◽  
Electrical Energy ◽  
Energy Performance ◽  
Urban Transport ◽  
Transport Systems ◽  
Urban Public Transport

Energy conservation is one of the key priorities of sustainable development strategy. Transport systems are responsible for about one third of energy consumption. As result, the identification of solutions to reduce energy consumption in these systems is essential for the implementation of the sustainable development strategies. The present work is dedicated to identifying the possibilities for a reduction in the consumption of electric energy in electric urban public transport systems, using the audit of their electricity system. After justifying the importance of these concerns, a mathematical model of the electrical energy balance of the electric urban public transport system and its components is presented. The analysis is applied to determine the losses in the system components and useful energy, based on the evaluation and energy consumption measurements. The measurements to reduce energy losses are identified and characterized under technical and economic aspect, optimal electrical energy balances being done on this basis.

scholarly journals Impact of COVID-19 on bus and urban public transport in SR

2021 ◽  
Vol 55 ◽  
pp. 418-425
Author(s):  
Renáta Cződörová ◽  
Marek Dočkalik ◽  
Jozef Gnap
Keyword(s):  
Public Transport ◽  
Urban Public Transport

scholarly journals Bus Rapid Transit System Introduction in Johor Bahru: A Simulation-Based Assessment

2021 ◽  
Vol 13 (8) ◽  
pp. 4437
Author(s):  
Sitti Asmah Hassan ◽  
Intan Nurfauzirah Shafiqah Hamzani ◽  
Abd. Ramzi Sabli ◽  
Nur Sabahiah Abdul Sukor
Keyword(s):  
Public Transport ◽  
Traffic Congestion ◽  
Economic Benefits ◽  
Bus Rapid Transit ◽  
Urban Mobility ◽  
Rapid Transit ◽  
Bus Priority ◽  
Time Saving ◽  
Transit System ◽  
Mobility Solution

Bus rapid transit (BRT) is one of the strategies to promote improvements in urban mobility. In this study, BRT scenarios, which integrate exclusive bus lanes and bus priority signal control in mixed traffic scenarios, were modelled using a VISSIM microsimulation. Three scenarios of BRT were modelled to represent 16:84, 38:62 and 54:46 modal splits between public transport and private vehicles. It was found that Scenario 4 (the 54:46 scenario) offers better benefits in terms of delay time saving and economic benefits. In general, it was found that the BRT system enhances the functioning of the transport system and provides people with faster and better mobility facilities, resulting in attractive social and economic benefits, especially on a higher modal split of public transport. It is regarded as one strategy to alleviate traffic congestion and reduce dependency on private vehicles. The finding of this study provides an insight on the effective concept of the BRT system, which may promote the dissemination of an urban mobility solution in the city. The results can help policymakers and local authorities in the management of a transport network in order to ensure reliable and sustainable transport.

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