scholarly journals Research on the application of BDS/GIS/RS technology in the high speed railway infrastructure maintenance

2021 ◽  
Vol 783 (1) ◽  
pp. 012168
Author(s):  
Jianfeng Yang ◽  
Xuejiao Bai ◽  
Zhuoxin Zhang ◽  
Meihao Yang ◽  
Peifen Pan ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Railway ◽  
Railway Infrastructure ◽  
Infrastructure Maintenance

Spatial–Temporal Model to Identify the Deformation of Underlying High-Speed Railway Infrastructure

2020 ◽  
Vol 146 (8) ◽  
pp. 04020084 ◽  
Author(s):  
Chenzhong Li ◽  
Ping Wang ◽  
Tianci Gao ◽  
Jianhui Wang ◽  
Cuiping Yang ◽  
...  
Keyword(s):  
High Speed ◽  
High Speed Railway ◽  
Railway Infrastructure ◽  
Temporal Model

Influence of the evolution of high-speed railway infrastructure on the success of Italian liberalization

2019 ◽  
Vol 20 (2) ◽  
pp. 113-137
Author(s):  
Carlos Augusto Olarte Bacares ◽  
Julien Brunel ◽  
Damien Sigaud
Keyword(s):  
Open Access ◽  
High Speed ◽  
Supply And Demand ◽  
High Speed Railway ◽  
Market Shares ◽  
Railway Infrastructure ◽  
Residual Capacity ◽  
Infrastructure Improvement ◽  
High Level ◽  
Complementary Analysis

The arrival of a new operator on the Italian high-speed railway (HSR) market, its maintanance and its market share made Italian open access experience one of the most successful liberalization models in the HSR sector. Researchers noticed that since the entry of the new operator, expansion of Italian HSR market is mostly due to the presence of this new operator. The aim of this article is to establish whether there were some other characteristics of the Italian HSR market that may explain this success even if it may be in opposition with what theory commonly suggests about competition in HSR markets. This research tries to do a complementary analysis by making a comparison with another successful HSR market that is not already liberalized: the French HSR market. After retracing supply, demand and markets maturity of Rome–Milan and Paris–Marseille lines, results reveal that supply and demand evolutions in both markets were very similar, if not identical after the commissioning of HSR. It suggests that liberalization may not be the only explanation of the significant evolution of Italian HSR market but that the opening of new infrastructures may also lead to positive trends that remain until markets reach a high level of maturity. This maturity understood as the residual capacity of the network and partially determined by infrastructure improvement seems to be another variable that had influenced the success of NTV. Indeed, before liberalization, Italian HSR network was far from saturation that allowed new entrant to capture important market shares.

scholarly journals Full-scale multi-functional test platform for investigating mechanical performance of track–subgrade systems of high-speed railways

2020 ◽  
Vol 28 (3) ◽  
pp. 213-231
Author(s):  
Wanming Zhai ◽  
Kaiyun Wang ◽  
Zhaowei Chen ◽  
Shengyang Zhu ◽  
Chengbiao Cai ◽  
...  
Keyword(s):  
High Speed ◽  
Mechanical Performance ◽  
Full Scale ◽  
Functional Test ◽  
Railway Track ◽  
High Speed Railway ◽  
Ballastless Track ◽  
Railway Infrastructure ◽  
Test Platform

Abstract Motivated by the huge practical engineering demand for the fundamental understanding of mechanical characteristics of high-speed railway infrastructure, a full-scale multi-functional test platform for high-speed railway track–subgrade system is developed in this paper, and its main functions for investigating the mechanical performance of track–subgrade systems are elaborated with three typical experimental examples. Comprising the full-scale subgrade structure and all the five types of track structures adopted in Chinese high-speed railways, namely the CRTS I, the CRTS II and the CRTS III ballastless tracks, the double-block ballastless track and the ballasted track, the test platform is established strictly according to the construction standard of Chinese high-speed railways. Three kinds of effective loading methods are employed, including the real bogie loading, multi-point loading and the impact loading. Various types of sensors are adopted in different components of the five types of track–subgrade systems to measure the displacement, acceleration, pressure, structural strain and deformation, etc. Utilizing this test platform, both dynamic characteristics and long-term performance evolution of high-speed railway track–subgrade systems can be investigated, being able to satisfy the actual demand for large-scale operation of Chinese high-speed railways. As examples, three typical experimental studies are presented to elucidate the comprehensive functionalities of the full-scale multi-functional test platform for exploring the dynamic performance and its long-term evolution of ballastless track systems and for studying the long-term accumulative settlement of the ballasted track–subgrade system in high-speed railways. Some interesting phenomena and meaningful results are captured by the developed test platform, which provide a useful guidance for the scientific operation and maintenance of high-speed railway infrastructure.

scholarly journals A risk assessment method for "Eurobalise" fastening system: managing the sensor/sleeper interaction in the high-speed railway infrastructure

2020 ◽  
Vol 45 ◽  
pp. 384-393 ◽  
Author(s):  
Andrea Simone ◽  
Claudio Lantieri ◽  
Valeria Vignali ◽  
Francesco Mazzotta ◽  
Michele Carpinone ◽  
...  
Keyword(s):  
Risk Assessment ◽  
High Speed ◽  
Assessment Method ◽  
High Speed Railway ◽  
Railway Infrastructure ◽  
Risk Assessment Method

An early warning system for detecting GSM-R wireless interference in the high-speed railway infrastructure

2010 ◽  
Vol 3 (3-4) ◽  
pp. 140-156 ◽  
Author(s):  
Gianmarco Baldini ◽  
Igor Nai Fovino ◽  
Marcelo Masera ◽  
Marco Luise ◽  
Vincenzo Pellegrini ◽  
...  
Keyword(s):  
Early Warning ◽  
Early Warning System ◽  
High Speed ◽  
Warning System ◽  
High Speed Railway ◽  
Wireless Interference ◽  
Railway Infrastructure

scholarly journals New method for allocating high-speed railway infrastructure costs among train types

2021 ◽  
Vol 233 ◽  
pp. 01137
Author(s):  
Chao Ji ◽  
Chenyu Xu
Keyword(s):  
High Speed ◽  
Cost Allocation ◽  
Rapid Development ◽  
Environmental Cost ◽  
Cost Calculation ◽  
High Speed Railway ◽  
Railway Infrastructure ◽  
Calculation Results ◽  
Rate Method ◽  
The Cost

With the rapid development of China's high-speed railway (HSR), there are also many problems. For example, in the classification and calculation of HSR transportation costs, there is a lack of reasonable cost statistical methods. There are many types of high-speed train currently running on HSR (mainly G and D trains). There are differences in the speed, load and energy consumption of different types of trains. The resulting infrastructure usage costs also vary. However, all train costs are classified and calculated uniformly in practice. This paper proposes the expenditure rate method of the transport process allocating the infrastructure use costs among types of trains. Based on data from the Beijing-Shanghai high-speed railway, the cost of infrastructure is calculated, and the calculation results can reasonably reflect the cost allocation among types of trains. It makes the cost calculation of high-speed railway more accurate and lays a foundation for environmental cost calculation.

scholarly journals Rational distribution of the high-speed railway capacity between trains of various categories

2018 ◽  
Vol 76 ◽  
pp. 95-100
Author(s):  
Viktor Myronenko ◽  
Viacheslav Matsiuk
Keyword(s):  
High Speed ◽  
Equal Access ◽  
High Speed Railway ◽  
Passenger Transportation ◽  
Rational Distribution ◽  
Railway Infrastructure ◽  
Railway Capacity

The article presents a methodology for the distribution of available capacity of high-speed railways, in the conditions of equal access to the railway infrastructure of different participants of the transport market. This will allow maximizing the efficiency of using available capacity of high-speed railways, while simultaneously organizing freight and passenger transportation.

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