High Speed Intercity and Urban Passenger Transport Maglev Train Technology Review: A Technical and Operational Assessment

2019 ◽  
Author(s):  
Fábio C. Barbosa
Keyword(s):  
High Speed ◽  
Magnetic Levitation ◽  
Urban Transport ◽  
Advanced Technology ◽  
Vehicle Body ◽  
Passenger Transport ◽  
Low Speed ◽  
Functional Features ◽  
Repulsive Forces ◽  
The City

Magnetic levitation (maglev) is a highly advanced technology which provides, through magnetic forces, contactless movement with no wear and friction and, hence, improved efficiency, followed by reduced operational costs. It can be used in many fields, from wind turbines to nuclear energy and elevators, among others. Maglev trains, which use magnetic levitation, guidance and propulsion systems, with no wheels, axles and transmission, are one of the most important application of the maglev concept, and represents the first fundamental innovation of rail technology since the launch of the railroad era. Due to its functional features, which replaces mechanical components by a wear free concept, maglev is able to overcome some of the technical restrictions of steel-wheel on rail (SWR) technology, running smoother and somewhat quieter than wheeled systems, with the potential for higher speeds, acceleration & braking rates and unaffected by weather, which ultimately makes it attractive for both high speed intercity and low speed urban transport applications. From a technical perspective, maglev transport might rely on basically 3 technological concepts: i) electromanetic suspension (EMS), based on the attraction effect of electromagnets on the vehicle body, that are attracted to the iron reactive rails (with small gaps and an unstable process that requires a refined control system); ii) Electrodynamic Levitation (EDL), which levitates the train with repulsive forces generated from the induced currents, resulted from the temporal variation of a magnetic field in the conductive guide ways and iii) Superconducting Levitation (SML), based on the so called Meissner Effect of superconductor materials. Each of these technologies present distinct maturity and specific technical features, in terms of complexity, performance and costs, and the one that best fits will depend on the required operational features of a maglev system (mainly speed). A short distance maglev shuttle first operated commercially for 11 years (1984 to 1995) connecting Birmingham (UK) airport to the the city train station. Then, high-speed full size prototype maglev systems have been demonstrated in Japan (EDL) (552 kph - 343 mph), and Germany (EMS) (450 kph - 280 mph). In 2004, China has launched a commercial high speed service (based on the German EMS technology), connecting the Pudong International Airport to the outskirts of the city of Shanghai. Japan has launched a low speed (up to 100 kph - 62.5 mph) commercial urban EMS maglev service (LIMINO, in 2005), followed by Korea (Incheon, in 2016) and China (Changsha, in 2016). Moreover, Japan is working on the high speed Maglev concept, with the so called Chuo Shinkansen Project, to connect Tokio to Nagoya, in 2027, with top speeds of 500 kph (310 mph). China is also working on a high speed maglev concept (600 kph - 375 mph), supported on EMS Maglev technology. Urban Maglev concept seeks to link large cities, with their satellite towns and suburbs, to downtown areas, as a substitute for subways, due to its low cost potential, compared to metros and light rail (basically due to their lower turning radius, grade ability and energy efficiency). High Speed Maglev is also seen as a promising technology, with the potential do provide high quality passenger transport service between cities in the 240–1,000 km (150–625 mi) distance range into a sustainable and reliable way. This work is supposed to present, based on a compilation of a multitude of accredited and acknowledged technical sources, a review of the maglev transport technology, emphasizing its potential and risks of the low and high speed (urban and intercity) market, followed by a brief summary of some case studies.

scholarly journals ENSURING PRIORITY FOR PUBLIC URBAN PASSENGER TRANSPORT ON URBAN STREETS AND ROAD NETWORK

2020 ◽  
Vol 17 (3) ◽  
pp. 390-399
Author(s):  
E. V. Fomin ◽  
V. А. Zeer ◽  
E. S. Arefieva ◽  
N. V. Golub
Keyword(s):  
High Speed ◽  
Road Network ◽  
Road Traffic ◽  
Urban Transport ◽  
Vulnerable Groups ◽  
Rolling Stock ◽  
Passenger Transport ◽  
Street Network ◽  
The Road ◽  
The City

Introduction. Recently, in large and medium-sized cities, the increase in traffic has been exacerbated by the growth of motorization and the lack of development of the road network. Increasing vehicle traffic to a critical level leads to overcapacity of the arteries and, as a consequence, increases the level of delay. Public urban mass passenger transport is one of the most vulnerable groups in this regard. In order to unload the city’s street network, it is necessary to reduce the level of road traffic. One of the effective measures to deal with this problem is to increase the attractiveness of urban mass passenger transport, i.e. to ensure an adequate level of service for passengers including high speed, which can be increased by giving priority to bus traffic. One of the prospects for prioritizing public urban transport is the development of individual lanes or streets for urban rolling stock only. Due to the lack of criteria for the allocation of separate lanes for urban rolling stock, they have begun to appear in the vast majority on the main streets of the city. There are a large number of urban highways used for the operation of only one public transport route with dedicated lanes on them. The need for such arrangements is questionable. It is therefore necessary to formulate the criteria that justify the need for a separate urban passenger lane on a given stretch of the city network. Thus, the purpose of this work is to identify patterns between traffic parameters and the parameters of the urban public passenger transport programme, which will determine the criteria for the need for a separate lane for urban land transport on each individual stretch of the network.Materials and methods. This article deals with the method of determining the need for a separate lane for public urban passenger transport on a given stretch of the road network. In order to improve the quality of the transport of passengers, a mathematical model has been developed, based on such indicators as the level of traffic delay and the share of passenger traffic in the total flow of participants. Results. The necessary conditions have been laid down the strict implementation of which determines the need to ensure the priority of urban mass public passenger transport on the section of the city’s street network under consideration.Discussion and conclusion. The dependencies obtained make it possible to identify the need to ensure the priority of urban transport.

A Stochastic Model for a Compressor Stability Measure

2006 ◽  
Vol 129 (3) ◽  
pp. 730-737 ◽  
Author(s):  
Manuj Dhingra ◽  
Yedidia Neumeier ◽  
J. V. R. Prasad ◽  
Andrew Breeze-Stringfellow ◽  
Hyoun-Woo Shin ◽  
...  
Keyword(s):  
Stochastic Model ◽  
High Speed ◽  
Stability Boundary ◽  
Model Development ◽  
Axial Compressor ◽  
Advanced Technology ◽  
Low Speed ◽  
Stability Measure ◽  
Compressor Rotor ◽  
The Impact

A stability measure rooted in the unsteady characteristics of the flow field over the compressor rotor has been previously developed. The present work explores the relationship between the stochastic properties of this measure, called the correlation measure, and the compressor stability boundary. A stochastic model has been developed to gauge the impact of the correlation measure’s stochastic nature on its applicability to compressor stability management. The genesis of this model is in the fundamental properties of a specific stochastic process, one that is created by the threshold crossings of a random process. The model validation utilizes data obtained on three different axial compressor facilities. These include a single-stage low-speed axial compressor, a four-stage low-speed research compressor, and an advanced technology demonstrator high-speed compressor. This paper presents details of the model development and validation, as well as closed loop experimental results to demonstrate correlation measure’s usefulness in compressor stability management.

A Discussion of Taiyuan’s Urban Master Planning (2010-2020)

2013 ◽  
Vol 295-298 ◽  
pp. 2557-2563 ◽  
Author(s):  
Rui Ma ◽  
Jian Bin Zhao
Keyword(s):  
Environmental Planning ◽  
Urban Transportation ◽  
Urban Transport ◽  
Master Planning ◽  
Passenger Transport ◽  
Organization Mode ◽  
Transport Organization ◽  
Chemical Companies ◽  
Transport Problems ◽  
The City

This paper presents theoretical comments on the “Taiyuan’s Urban Master Planning (2010-2020)” mainly in the aspects of the city's orientation, functions, urban transportation and eco-environmental planning. It can be seen that the master planning have a new scientific orientation of the city of Taiyuan by perceiving it as “a historic ancient capital of culture"; sufficient attention is paid to the relocation, renovation and update of TISCO, TCIGO and other heavy chemical companies; the newly designed urban public transit passenger transport organization mode is utilized to settle the increasingly prominent urban transport problems; tourism development is promoted under the premise of the protection of ecological environment as well as historical and cultural heritages; a number of shortcomings and recommendations for improvement are also proposed, trying to provide decision-making references for further adjustments and improvements of Taiyuan’s urban planning.

scholarly journals A new concept of modular magnetic levitation train for urban transport

2018 ◽  
Vol 4 (2) ◽  
pp. 107-119
Author(s):  
Maurizio Cavagnaro ◽  
Vincenzo Delle Site
Keyword(s):  
Permanent Magnets ◽  
Magnetic Levitation ◽  
Low Cost ◽  
National Research Council ◽  
Synchronous Motor ◽  
Urban Transport ◽  
Guidance System ◽  
Design Data ◽  
Linear Synchronous Motor ◽  
Repulsive Forces

Aim: The aim of our project is to solve all technological and functional problems related to the development of the suspended urban Maglev, while maintaining the requirement of simplicity and low cost of construction, operation and maintenance. Both the infrastructure and the vehicle are designed to be industrially produced and assembled on site. Methods of the studies: Our study is based on the theoretical and experimental results obtained during a project of the Italian National Research Council, concerning the performances of opposing permanent magnets, the design of the linear synchronous motor and the possible solutions for realizing the guidance system. On the basis of these results the study of the suspended system was carried out. Results: The paper describes the suspended urban Maglev with PM/PM primary suspension (with opposing permanent magnets) and proposes a mechanical guidance system that uses for stabilization the same repulsive forces between permanent magnets. We also propose a new configuration with HTS/PM primary suspension (with high temperature superconductors opposed to permanent magnets), evaluating pros and cons of this solution. Finally we provide design data on the linear synchronous motor suitable for our system. Conclusion: This paper describes our proposal for a suspended urban Maglev using permanent magnets; our interest focuses on the need to further develop industrially feasible solutions, easy to build and manage, in order to propose a system that is also commercially viable and competitive. The identified advantages justify further studies.

A Stochastic Model for a Compressor Stability Measure

2006 ◽  
Author(s):  
Manuj Dhingra ◽  
Yedidia Neumeier ◽  
J. V. R. Prasad ◽  
Andrew Breeze-Stringfellow ◽  
Hyoun-Woo Shin ◽  
...  
Keyword(s):  
Stochastic Model ◽  
High Speed ◽  
Stability Boundary ◽  
Model Development ◽  
Axial Compressor ◽  
Advanced Technology ◽  
Low Speed ◽  
Stability Measure ◽  
Compressor Rotor ◽  
The Impact

A stability measure rooted in the unsteady characteristics of the flow field over the compressor rotor has been previously developed. The present work explores the relationship between the stochastic properties of this measure, called the correlation measure, and the compressor stability boundary. A stochastic model has been developed to gauge the impact of the correlation measure’s stochastic nature on its applicability to compressor stability management. The genesis of this model is in the fundamental properties of a specific stochastic process, one that is created by the threshold-crossings of a random process. The model validation utilizes data obtained on three different axial compressor facilities. These include a single stage low speed axial compressor, a four stage low speed research compressor and an advanced technology demonstrator high speed compressor. This paper presents details of the model development and validation, as well as, closed loop experimental results to demonstrate correlation measure’s usefulness in compressor stability management.

scholarly journals SPEED URBAN TRANSPORT FOR MODERN AGLOMERATION

2015 ◽  
Vol 1 (1) ◽  
pp. 26-36 ◽  
Author(s):  
Maria V FJODOROVA
Keyword(s):  
Magnetic Levitation ◽  
Urban Transport ◽  
Light Rail ◽  
Passenger Transport ◽  
Passenger Traffic ◽  
Lane Departure ◽  
New Type ◽  
Development Goals ◽  
Goals And Objectives

The paper highlighted the main shortcomings of the existing types of urban transport; described a new form of settlement - «conurbation», the classification of urban passenger transport; refined the concept of «fast urban transport»; the necessity of creating a new type of passenger transport in terms of strategic and socio-economic development goals and objectives of St. Petersburg; reflected the creation magnetic levitation transport, can significantly improve the transport service of the population, to reduce the time spent on the trip, take some of the load on the highway due to the shift of the population use cars for transport on a magnetic cushion, reduce pollution. Maglev is no substitute for public transport, and only takes a niche. Maglev is appropriate where there is a contact with the dense buildings and accumulate large volumes of passenger traffic, which are not able to provide the underground. Design features maglev that covers truck bearing beams, prevents lane departure (derailment); emissions of pollutants into the atmosphere when the movement of trains are excluded; noise is 10 dB less than the rail; Vibration 8 times less than that of light rail transport. Maglev has the highest rate of all public land transport.

scholarly journals Justification of Indicator System of Social and Economic Efficiency of High-Speed Urban Transport Development Strategy

2017 ◽  
Vol 3 (4) ◽  
pp. 179-203
Author(s):  
Maria V Fiodorova
Keyword(s):  
Development Strategy ◽  
Economic Efficiency ◽  
High Speed ◽  
Magnetic Levitation ◽  
Investment Project ◽  
Indicator System ◽  
Urban Transport ◽  
External Effects ◽  
Important Conclusion ◽  
The Social

Introduction. At the present stage of developing methodological approaches to assessment of social and economic efficiency, all the external effects of the project are divided into effects that can be estimated in value terms, and effects that cannot be expressed in monetary units. In turn, the latter are divided into effects that have a quantitative expression and effects, described only on a qualitative level. External effects, which can be estimated in monetary terms, are directly included in the calculation of the social and economic efficiency of the project in the form of additional inflows and outflows of money. Problem. The conceptual basis for assessing the social and economic efficiency of new high-speed lines is the comprehensive consideration of all external effects from the implementation of the investment project (economic and non-economic) that do not affect the cost parameters of the project participants. Objective. The aim of the work is to develop a system of indicators for assessing the social and economic efficiency of the strategy of the development of high-speed urban transport. Methods. Study of existing methods of assessing social and economic efficiency, searching for disadvantages and advantages, exploring the advantages of magnetic levitation technology. Results. The development of this system of indicators for magnetic levitation transport, which is distinguished by such advantages as the impossibility of derailment, greater route speed, hence less time travel, less noise and vibration than light-rail transport and metro, complete absence of dust, is especially important. Conclusion. The proposed system of indicators for assessing the social and economic efficiency of the strategy of the development of high-speed urban transport takes into account all the advantages of magnetic levitation technology and makes it a priority when choosing high-speed urban transport.

scholarly journals Optimization of Urban Passenger Transport Route Network Parameters in Conditions of Structural Transformations of City Social and Economical Development

2021 ◽  
Vol 334 ◽  
pp. 02021
Author(s):  
Vladimir Belokurov ◽  
Murat Bedanokov ◽  
Yusuf Guketlev ◽  
Yana Tkacheva ◽  
Eljdar Guketlev
Keyword(s):  
Structural Transformations ◽  
Urban Transport ◽  
Transport Network ◽  
Passenger Transport ◽  
Network Parameters ◽  
Route Network ◽  
Economical Development ◽  
The City

This article presents the materials related to the optimization of the route network parameters of passenger transport on the example of the city of Maykop. The scheme of the main directions of the route network and the analysis of the urban transport network of the city of Maykop. Recommendations for optimizing the parameters of the route network of passenger transport in Maykop.

scholarly journals Implementation of information systems in the organization of public passenger transport - examples from practice

2020 ◽  
Vol 66 (2) ◽  
pp. 21-25
Author(s):  
Tijana Ivanisevic ◽  
Sreten Simović ◽  
Vedran Vukšić
Keyword(s):  
Information System ◽  
Urban Areas ◽  
Information Technologies ◽  
Urban Transport ◽  
Passenger Transport ◽  
Goods And Services ◽  
Organization And Management ◽  
Modern System ◽  
City System ◽  
The City

The system of public urban transport of passengers should ensure the flow of people, goods and services in urban areas, occupying a special place in the city system and significantly affecting the sustainability of the city. Efficient organization and management of the system is not possible without proper information. An indispensable part of every modern system of public urban passenger transport are information technologies. Information technologies make the company more competitive, modern and more efficient, so without it's application it is impossible to survive in a market that is very demanding in terms of optimizing transport activities and processes. The paper presents the application of the information system in the organization of public urban passenger transport in the city of Belgrade.

Optimization of the transport network by the case of Cherkasy city

2021 ◽  
Vol 13 (1) ◽  
pp. 13-22
Author(s):  
Viktor Bilichenko ◽  
◽  
Liudmyla Tarandushka ◽  
Nataliia Kostian ◽  
Oleksandr Pylypenko ◽  
...  
Keyword(s):  
Public Transport ◽  
Urban Traffic ◽  
Urban Transport ◽  
Transport Network ◽  
Transport Infrastructure ◽  
Model Parameters ◽  
Passenger Transport ◽  
The Public ◽  
Route Network ◽  
The City

The article explores the possibility of optimization of the public transport network by reducing the number of duplicate routes. In the course of the research the existing network of urban passenger transport of Cherkasy and the structure of the transport fleet of motor transport enterprises providing relevant services are analyzed. The length of the different routes of the network and the intensity of their movement are determined. It has been found that the density of the public passenger transport route network (8.1 km/km2) is much higher than the normative value. The indices of duplication of each bus and trolleybus route of the network with other routes are calculated. In order to study the demand for urban passenger transportation, a population survey was conducted. A mathematical model for optimizing the movement of trolleybuses and buses on duplicate routes is constructed. The model takes into account the degree of duplication of one route by another, the percentage distribution of passengers by type of transport and the limitation of vehicles by passenger capacity. The values of the model parameters, which determine the damage to the urban environment by one run, are calculated at the tariff rates for damage to the vehicle 1 km of the city road and the emission into the atmosphere of the exhaust gas (for buses). Optimization of the Cherkasy public transport network on routes with complete duplication (coincidence of route routes of two modes of transport is not less than 75%). According to the optimization results, a new itinerary network is proposed, which provides minimal duplication of routes, which in turn will lead to reduction of the accident rate, reduction of environmental pollution and increase of the efficiency of operation of the entire transport infrastructure of the city. The implementation of the results of this study will reduce the overall economic and environmental losses of passengers and transport, which will lead to a more efficient functioning of urban transport. The constructed model can be used to plan urban traffic on new routes, as well as to construct a dual task of calculating the cost of passenger hours, provided that passenger traffic is moving with optimum intensity.

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