scholarly journals A review on artificial intelligence in high-speed rail

2020 ◽  
Vol 2 (4) ◽  
pp. 247-259
Author(s):  
Mingjia Yin ◽  
Kang Li ◽  
Xiaoqing Cheng
Keyword(s):  
Artificial Intelligence ◽  
Intelligent Control ◽  
High Speed ◽  
Sustainable Use ◽  
Job Creation ◽  
Economic Benefits ◽  
High Speed Rail ◽  
Intelligent Maintenance ◽  
And Control ◽  
Pervasive Applications

Abstract High-speed rail (HSR) has brought a number of social and economic benefits, such as shorter trip times for journeys of between one and five hours; safety, security, comfort and on-time commuting for passengers; energy saving and environmental protection; job creation; and encouraging sustainable use of renewable energy and land. The recent development in HSR has seen the pervasive applications of artificial intelligence (AI). This paper first briefly reviews the related disciplines in HSR where AI may play an important role, such as civil engineering, mechanical engineering, electrical engineering and signalling and control. Then, an overview of current AI techniques is presented in the context of smart planning, intelligent control and intelligent maintenance of HSR systems. Finally, a framework of future HSR systems where AI is expected to play a key role is provided.

California High-Speed Rail

2016 ◽  
pp. 1-14
Author(s):  
Jeff Morales
Keyword(s):  
High Speed ◽  
Energy Use ◽  
Agricultural Land ◽  
Job Creation ◽  
The United States ◽  
High Speed Rail ◽  
Short And Long Term ◽  
Environmentally Sensitive ◽  
Rail Station

California has started construction on the first true high-speed rail system in the United States. In this chapter, the CEO of the California High-Speed Rail Authority describes how the state's historic investment in new high-speed rail infrastructure will benefit Californians. Benefits include job creation, statewide modernization of existing local rail lines, short and long-term reductions in greenhouse gas emissions, preservation of agricultural land and environmentally sensitive habitats, advanced clean and green construction practices and technologies, a commitment to 100% renewable energy use, and assistance to partner cities on transit-oriented planning for high-speed rail station areas.

Use them or lose them? Conservation and the consumptive use of marine turtle eggs at Ostional, Costa Rica

1998 ◽  
Vol 25 (4) ◽  
pp. 305-319 ◽  
Author(s):  
LISA M. CAMPBELL
Keyword(s):  
Costa Rica ◽  
Wildlife Conservation ◽  
Local Development ◽  
Sustainable Use ◽  
Community Support ◽  
Economic Benefits ◽  
Marine Turtle ◽  
Community Based ◽  
Community Based Conservation ◽  
And Control

'Sustainable use' of wildlife resources and 'community based conservation' are two themes recurrent in contemporary statements of wildlife conservation policy, and their use is in response to a perceived 'deep conservation crisis' which has in part arisen from exclusionary and restrictive conservation practices. The extent to which the legal harvest of marine turtle eggs in Ostional, Costa Rica, is an example of sustainable use and community based conservation is evaluated in this paper. Field research using in-depth interviewing and a household questionnaire was undertaken in Ostional during 1994 and 1995, to investigate local perceptions of the egg harvesting project, both positive and negative. Socio-economic benefits from, and legal and administrative structures supporting, the project were found to be fundamental to community support for a limited egg harvest and allowed for community participation in, and control of, resource use. Participation and control were key to local support for conservation of nesting marine turtles and their eggs. Attempts to use wildlife sustainably must be considered on a case by case basis, to account for the biological nature of the wildlife resource and environment in question and for local socio-economic, political and historical conditions. Nevertheless, some of the lessons learned from the attempt to implement sustainable use and community based conservation in Ostional may be more widely generalized, and may help inform other efforts to reconcile wildlife conservation objectives with local development needs.

A Comprehensive Framework for Assessing Passenger Rail Services: A Case Study of the Hoosier State Line

2014 ◽  
Author(s):  
V. Dimitra Pyrialakou ◽  
Konstantina (Nadia) Gkritza
Keyword(s):  
High Speed ◽  
Systems Approach ◽  
Cost Effective ◽  
The United States ◽  
Economic Benefits ◽  
Fiscal Year ◽  
High Speed Rail ◽  
Passenger Rail ◽  
Rail Services

The development of a nationwide commuter and high-speed rail (HSR) network has been suggested as a promising and “greener” passenger transport solution with the potential to reduce energy consumption and greenhouse gas emissions, given efficient planning that will ensure sufficient ridership and sustainable investment. It is anticipated that passenger rail growth will bring regional economic benefits as well as promote energy independence, transportation safety, and livable communities with improved accessibility and inter-connectivity. Much research has been conducted to identify the benefits and costs associated with the operation, maintenance, and improvement of passenger rail services. However, previous studies supporting investment in passenger rail have generally considered one evaluation factor at a time. Additionally, studies suggesting that investment in passenger rail is not cost-effective give more weight to quantifiable benefits and current conditions, and rarely consider changes in public preferences influenced by policies and fostered conditions to encourage mode shifts. Thus, the literature lacks a comprehensive approach that would evaluate investments in passenger rail, accounting for quantifiable and other benefits, in light of environmental, resilience and sustainability, economic, demand, and feasibility factors. Using a case study of the Hoosier State line, this study illustrates a systems approach for comprehensively assessing passenger rail services in the United States in terms of the system’s existing opportunities and future directions. The Hoosier State line operates four days per week between Indianapolis, Indiana and Chicago, Illinois with four intermediate stops. As of October 1, 2013, the State of Indiana, local communities, and Amtrak reached an agreement to support the Hoosier State line for the next fiscal year (2013–2014).

Europe's high-speed rail hopes could go off track

2016 ◽  
Keyword(s):  
High Speed ◽  
Economic Benefits ◽  
High Speed Rail ◽  
Content Type ◽  
The Public ◽  
Public Acceptability ◽  
Potential Development ◽  
The Face ◽  
Benefits And Costs ◽  
European Sector

Subject The high-speed rail sector in Europe. Significance High-speed rail continues to develop in Europe, but there are increasing concerns about the balance of economic benefits and costs as well as, in some cases, the public acceptability of the sector. Hopes that the industry's development in Europe would provide a base for exports may be optimistic, in the face especially of Chinese competition. Impacts Growth in the European market will continue, but much of the sector's potential development is in other regions, especially Asia. The breakdown of the Schengen zone or introduction of airport-style security would blight the environment for the European sector. Liberalisation, driven by either national or EU reforms, could increase competition on Europe's densest national and international routes. Spain's fiscal and centre-periphery challenges could make its development of high-speed rail especially sensitive.

Train delay propagation under random interference on high-speed rail network

2019 ◽  
Vol 30 (08) ◽  
pp. 1950059
Author(s):  
Ziyan Feng ◽  
Chengxuan Cao ◽  
Yutong Liu
Keyword(s):  
Dynamic Model ◽  
High Speed ◽  
Sensitivity Analyses ◽  
High Speed Rail ◽  
Control Policies ◽  
Passenger Train ◽  
Delay Propagation ◽  
Rail Network ◽  
Railway Traffic ◽  
And Control

To simulate passenger train movements on the high-speed rail network, this paper proposes a new dynamic model based on the discrete time method and provides some efficient control policies correspondingly. Besides that, an improved minimum safe headway in the moving-block system on the high-speed rail network is presented. Using the proposed method, the dynamic characteristics of railway traffic flow are analyzed under random interferences on the high-speed rail network. Then, some sensitivity analyses are implemented to investigate the propagation features of delays under different interferences. The results indicate that the proposed dynamic model and control policies for the passenger train movements on the high-speed rail network are effective and can be a fundamental research for subsequent research of delay propagation, rerouting and rescheduling problems.

scholarly journals Analysis of the Legal Measures Concerning Risk Assessment and Control for High-Speed Rail: Experience and Lessons from the European Union

2020 ◽  
Vol 8 (5) ◽  
pp. 72
Author(s):  
Kai Liu
Keyword(s):  
Risk Assessment ◽  
European Union ◽  
Legal System ◽  
High Speed ◽  
Legal Framework ◽  
The European Union ◽  
High Speed Rail ◽  
And Control

In a context of the emerging risks that may lead to the high speed rail accidents and so the deaths, the question is to know what the roles of different actors prescribed in the legal system and what instruments have been established, and whether the legal framework is sufficient to promote risk assessment. This research studied the European Union legal system and pointed out its experience that could be enlighting as well as its weaknesses.  

scholarly journals Path Following of a Water-Jetted USV Based on Maneuverability Tests

2020 ◽  
Vol 8 (5) ◽  
pp. 354 ◽  
Author(s):  
Junmin Mou ◽  
Yangying He ◽  
Benren Zhang ◽  
Shixuan Li ◽  
Yong Xiong
Keyword(s):  
Intelligent Control ◽  
High Speed ◽  
Path Following ◽  
Network Control ◽  
Propulsive Efficiency ◽  
Navigation Algorithm ◽  
Time Accuracy ◽  
And Control ◽  
Turning Test ◽  
Ship Handling

Due to the high propulsive efficiency and better maneuverability under high speed, the water-jetted unmanned surface vehicle (USV) is widely studied and used. This paper presents complete maneuvering tests and control algorithm designed for a twin water-jetted USV model. Firstly, a wireless network control platform is established, and maneuvering tests, for instance, an inertia test, zig-zag test and turning test, are carried out to verify the maneuverability of the USV. In light of the complexity and uncertainty of ship sailing and ship handling, the Human Simulated Intelligent Control (HSIC) method is utilized to optimize the response time, accuracy and robustness of the controller. Finally, for the path following and track rectification part, a Line of Sight (LOS) algorithm is improved and proved practicable with triangle/square path tests. The proposed intelligent navigation algorithm specially designed for matching with the control methods, showing satisfactory improvements on the motion control and path following of the specific USV.

Trapped Vehicle Detection System for Four-Quadrant Gates in High Speed Rail Corridors: Design Methodology and Implementation Issues

1998 ◽  
Vol 1648 (1) ◽  
pp. 35-42 ◽  
Author(s):  
Fred Coleman ◽  
Young J. Moon
Keyword(s):  
High Speed ◽  
Detection System ◽  
Vehicle Detection ◽  
High Speed Rail ◽  
Track System ◽  
The Status ◽  
System Functioning ◽  
Status Information ◽  
Four Quadrant ◽  
And Control

The objective of this paper is to determine the location of sensors in the track system functioning as checkpoints to provide information to a train on the status of the crossing and provide evasive maneuver time for the train and trapped vehicle. Two train-operating scenarios are evaluated: the first provides no deceleration when a trapped vehicle is detected; the second scenario has the train decelerate at a tolerable deceleration rate to passengers when a trapped vehicle is detected. The findings indicate that there is a trade-off between minimizing the distances to locate the trapped vehicle detection sensors in the track system and potential issues of reliability of vehicle detection and maximization of safety. Recommendations include provision of on-board real-time status information on the crossing(s) in the train with automatic train location and control to continuously provide safe stopping distances in event of a trapped vehicle.

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