scholarly journals Robustness assessment of China's high-speed railway transportation network

2019 ◽  
Vol 1 ◽  
pp. 1-2
Author(s):  
Zhuo Wang ◽  
Haowen Yan ◽  
Yuhan Huang ◽  
Yazhen Li
Keyword(s):  
High Speed ◽  
Transportation Network ◽  
Transport Network ◽  
Node Degree ◽  
Railway Transportation ◽  
Railway Network ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Scale Free ◽  
Passenger Traffic

<p><strong>Abstract.</strong> The robustness of the high-speed rail transportation network is closely related to the passenger transportation efficiency, and is also a concrete manifestation of the anti-jamming capability of the high-speed railway transportation system. By the end of 2017, the business mileage of Chinese high-speed railway has reached 25,164 km, the number of passengers has reached 175.216 million, accounting for 56.8% of railway passenger traffic; the number of passenger turnover has reached 587.56 billion person-km, accounting for 43.7% of railway passenger traffic turnover.As of 2018 On December 4th, the country operate 4,251 high-speed railway trains every day. At the same time, passenger transportation efficiency of high-speed railways is highly susceptible to sudden events such as natural disasters. Therefore, quantitative assessment of anti-jamming capability of high-speed railway network, and the propose of specific improvements, are of great practical significance to improve passenger transport efficiency, enhance scientific decision-making high-speed rail transport infrastructure investments.</p><p>This paper used the the high-speed train running data on December 4, 2018 to analyze the work.Its high-speed railway network schematic is shown in Figure 1.</p><p>The Scale-free property of networks means that the node degree of networks obeys power-law distribution. It is generally believed that scale-free networks exhibit robustness against random faults and vulnerability to deliberate attacks. In this paper, the regularity of node degree change is expressed by distribution function P(k). As shown in the degree distribution of double logarithmic coordinate system as shown in Figure 2, the network has a great goodness of fit and better obeys power law score.That is to say, the network is a scale-free network.</p><p>In this paper, random attacks and deliberate attack simulations are used to observe the condition of the structure of China's high-speed railway network, and in order to measure the robustness of high-speed rail network. Among them, the formula refers to random delete a node from the network; deliberate attack is to delete nodes according to their importance. Attack strategies for node degree and intermediate centrality are used to determine which nodes are selected for each simulated attack (the lower the importance, the smaller the impact on the network). According to the three attack strategies for the high-speed railway transportation network, experiments are carried out to carry out continuous simulation attacks on the network: in each time, a node in the network and all its connected edges are deleted, the relative average shortest path and average clustering coefficient of the network at this time are counted. And the degree of fragmentation, looping until all nodes in the network are deleted, that is to say, the network is completely invalid. In Fig. 3, Fig. 4 and Fig. 5, the X axis represents the number of attack nodes, and the Y axis represents the current network structure feature metric.</p><p>It can be seen that the intentional attack based on the centrality of node mediation has the most serious damage to the network, that is, in other word, the state of splitting and crashing of the network.. For deliberate attacks, China's high-speed railway transport network is very fragile, and attacking nodes with high intermediary centrality value is the most destructive to China's high-speed railway transport network. Therefore,in order to ensure the normal operation of passenger transport we need to focus on ensuring the stability of the sites with the highest intermediary value. This paper ranks the sites according to the value of intermediary centrality. Figure 6 shows the top 10 sites in China's high-speed rail transport network with centrality as intermediaries.</p>

scholarly journals An Empirical Study on the Comprehensive Optimization Method of a Train Diagram of the China High Speed Railway Express

2019 ◽  
Vol 11 (7) ◽  
pp. 2141
Author(s):  
Xueqiao Yu ◽  
Maoxiang Lang ◽  
Wenhui Zhang ◽  
Shiqi Li ◽  
Mingyue Zhang ◽  
...  
Keyword(s):  
Sustainable Development ◽  
High Speed ◽  
Railway Transportation ◽  
Railway Network ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Logistics Industry ◽  
The Sustainable Development ◽  
Express Train ◽  
Multiple Units

The rapid and stable development of China’s economy has driven the increasing demand for express transportation. Based on network operation, China Railway Corporation of High-speed Railway launched high-speed rail products, which have attracted wide attention from all walks of life. With the application of high-speed express trains, the market structure of express transportation in China will change dramatically, from highways as the main mode of transportation to high-speed railway transportation relying on a high-speed railway network, which will effectively reduce the environmental pollution caused by express transportation and further improve the sustainable development of the economy and the logistics industry. At present, the freight Electric Multiple Units (EMU) has been successfully developed and has entered the final test stage. In the last paper, we have introduced the theory and method of the high-speed rail express train operation plan. In addition, a train diagram is an important foundation of railway transportation organization. In order to ensure the sustainable development of high-speed rail express trains after they are put into use, based on the operation plan of high-speed rail express trains, this paper establishes a comprehensive compilation model of a high-speed rail express train diagram, considering train running time, freight flow distribution scheme, and the operation plan of freight multiple units, and an exact solution algorithm based on the Lagrange relaxation algorithm is designed. The computational results are encouraging and demonstrate the effectiveness of the model and solution method.

scholarly journals Innovative Geoinformation Systems for the Design of Communication Paths

2020 ◽  
Author(s):  
Yevheniia Ugnenko ◽  
Olha Tymchenko ◽  
Elena Uzhviieva ◽  
Nataliia Sorochuk ◽  
Gintas Viselga
Keyword(s):  
High Speed ◽  
Railway Network ◽  
High Speed Railway ◽  
Passenger Traffic ◽  
Gradual Introduction ◽  
Railway System ◽  
Basic Characteristics ◽  
The Cost ◽  
Cost Of Construction ◽  
Communication Paths

The article analyses the volume of passenger traffic from 1990 to 2019 for land, water and air transport. From the materials obtained and the experience of the networks of European and world high-speed railways, goals are set. High-speed lines designed exclusively for passenger traffic. This moment plays an important role in reducing the cost of construction, increasing the market and economic profitability. According to the data from the State Statistics Service of Ukraine, it is possible to calculate the passenger flow based on the known parameters for 2020–2032 in the direction of Kiev–Lviv. The design of high-speed lines should meet general requirements aimed at satisfying the basic characteristics of a high-speed railway system, which works in conjunction with the European High-Speed Railway network. The compatibility of the parameters of high-speed lines with the parameters of traditional lines is part of the operational requirements for the gradual introduction of a network of high-speed railways. Possible scenarios to achieve the required compatibility should cover all subsystems.

Mitigating the vulnerability of an air-high-speed railway transportation network: From the perspective of predisruption response

2020 ◽  
pp. 1748006X2096609
Author(s):  
Xiao Feng ◽  
Shiwei He ◽  
Xuchao Chen ◽  
Guangye Li
Keyword(s):  
High Speed ◽  
Travel Demand ◽  
Transportation Network ◽  
Mainland China ◽  
Model Performance ◽  
Air Transportation ◽  
Civil Aviation ◽  
Economic Losses ◽  
Railway Transportation ◽  
High Speed Railway

Both the high-speed railway and air transportation network are the backbone of the interregional transport network and cover important cities in a country. Taking cities as nodes, a comprehensive interregional transportation network consisting of high-speed railways and civil aviation can be constructed. This network undertakes a huge passenger transportation task, so the failure of this network will cause serious economic losses and even casualties. In the Air-High-Speed Railway Transportation Network (A-HSRTN), the two transport modes can operate independently and can be alternatives. The analysis of the A-HSRTN helps planners to have a more comprehensive understanding of the vulnerability of the interregional passenger transport system. Mechanical failure, extreme weather and even man-made sabotage can threaten the operation of airports and stations. Optimizing the deployment of prevention resources can avoid or reduce the loss caused by those failure events in the A-HSRTN. This paper establishes a tri-level model to optimize the deployment of prevention resource from the perspective of predisruption response. This model takes the high-speed railway and air transportation system as an integrated transportation network to assign the limited prevention resources. The model aims to minimize the travel demand that cannot be satisfied in the worst failure scenario. Taking the A-HSRTN in mainland China as an example, this paper analyzes the model performance and the defense strategy obtained by this model. These case studies demonstrate that the method and model proposed in this paper can mitigate the vulnerability of the A-HSRTN.

scholarly journals RESEARCH DIRECTIONS THE DEVELOPMENT OF SPEED AND HIGH-SPEED PASSENGER TRAINS ON RAILWAYS UKRAINE

2014 ◽  
Author(s):  
Larisa Parkhomenko
Keyword(s):  
High Speed ◽  
Railway Network ◽  
High Speed Rail ◽  
Passenger Traffic ◽  
Passenger Transportation ◽  
Partial Interaction ◽  
Normal Speed ◽  
Speed Up ◽  
Passenger Trains ◽  
Railway Passenger

This paper analyzes the trends of high-speed and high-speed passenger trains on the railways of Ukraine on the basis of market research and analysis of passenger traffic plying the effectiveness of conventional and high-speed passenger trains within the existing operating model railroad network. The analysis of changes in the competitiveness of rail transport in the passenger transportation market in the implementation of high-speed and high-speed rail passenger traffic. This paper analyzes the effectiveness of most profitable running of passenger trains normal speed (speed up to 120 km/h ) and passenger trains new Hyundai and Skoda (speed up to 160 km/h), which began to run from 2012 on the railway network inUkraine. We prove the efficiency of high-speed railway passenger transportation to Ukraine on the basis of an extensive network of specialized upgraded lines on which trains are capable of speeds up to 180 km/hwith the possibility of partial interaction with conventional network.

scholarly journals Cluster Coordination between High-speed Rail Transportation Hub Construction and Regional Economy Based on Big Data

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Liang Zhao ◽  
Yuanhua Jia
Keyword(s):  
Big Data ◽  
High Speed ◽  
Regional Economy ◽  
Added Value ◽  
Gdp Per Capita ◽  
Rail Transportation ◽  
Railway Transportation ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Per Capita

As people’s lives get better and better, more and more people choose to travel and with that comes the demand for more transportation. For now, traditional transportation hubs can temporarily meet people’s travel needs. If driven by big data concepts and methods, the various capabilities of high-speed rail transportation hubs will be sublimated, and the regional economy will be in line with the prosperity of this place. Proportionally, railway hubs are extremely attractive to the rapid growth of the regional economy. This paper takes the high-speed railway hub construction model under big data as the research object and verifies the reliability of the research model and the development of economic regions based on the high-speed railway data in recent years as reference parameters. This article selects the panel data of railway transportation and regional economy in China’s provinces for 10 consecutive years from 2011 to 2020. Among them, seven indicators were selected for railway transportation: passenger volume, freight volume, passenger turnover, cargo turnover, number of railway employees, railway transportation industry fixed asset investment and construction scale, and per capita railway network density. In terms of regional economy, six indicators were selected: regional GDP, per capita GDP, per capita investment in fixed assets, per capita total retail sales of consumer goods, per capita investment in imports and exports, and the proportion of the added value of the tertiary industry in GDP. The experimental results prove that each sample is tested in pairs, the standard error level of the mean is 0.002, which is less than 0.05, and high-speed railway construction can finally achieve economic integration. By improving the development of high-speed railways, continuously shortening the distance between time and space, breaking regional trade barriers, and reducing the cost of commodity circulation, industrial interaction and coordinated development between different regions can be effectively promoted.

scholarly journals Exploring Railway Network Dynamics in China from 2008 to 2017

2018 ◽  
Vol 7 (8) ◽  
pp. 320 ◽  
Author(s):  
Yaping Huang ◽  
Shiwei Lu ◽  
Xiping Yang ◽  
Zhiyuan Zhao
Keyword(s):  
High Speed ◽  
Rapid Development ◽  
Small World ◽  
Clustering Coefficient ◽  
Network Clustering ◽  
Railway Network ◽  
High Speed Rail ◽  
Network Characteristics ◽  
Scale Free ◽  
Stage 1

China’s high speed rail (HSR) network has been rapidly constructed and developed during the past 10 years. However, few studies have reported the spatiotemporal changes of railway network structures and how those structures have been affected by the operation of high speed rail systems in different periods. This paper analyzes the evolving network characteristics of China’s railway network during each of the four main stages of HSR development over a 10-year period. These four stages include Stage 1, when no HSR was in place prior to August 2008; Stage 2, when several HSR lines were put into operation between August 2008, and July 2011; Stage 3, when the network skeleton of most main HSR lines was put into place. This covered the period until January 2013. Finally, Stage 4 covers the deep intensification of several new HSR lines and the rapid development of intercity-HSR railway lines between January 2013, and July 2017. This paper presents a detailed analysis of the timetable-based statistical properties of China’s railway network, as well as the spatiotemporal patterns of the more than 2700 stations that have been affected by the opening of HSR lines and the corresponding policy changes. Generally, we find that the distribution of both degrees and strengths are characterized by scale-free patterns. In addition, the decreasing average path length and increasing network clustering coefficient indicate that the small world characteristic is more significant in the evolution of China’s railway network. Correlations between different network indices are explored, in order to further investigate the dynamics of China’s railway system. Overall, our study offers a new approach for assessing the growth and evolution of a real railway network based on train timetables. Our study can also be referenced by policymakers looking to adjust HSR operations and plan future HSR routes.

Environmental aspect of the organization of cargo bypass in the alignment of the corridor «Center – South»

2021 ◽  
pp. 82-92
Author(s):  
S. P. Vakulenko ◽  
◽  
A. V. Kolin ◽  
D. Yu. Romensky ◽  
K. A. Kalinin ◽  
...  
Keyword(s):  
High Speed ◽  
Road Transport ◽  
Railway Transport ◽  
Railway Network ◽  
High Speed Railway ◽  
Environmental Aspect ◽  
Passenger Traffic ◽  
Railway Traffic ◽  
The Status ◽  
Fierce Competition

The development of railways is the most important condition for maintaining its position at the transportation market and increasing the competitiveness of railway transport in future. This may be, for example, the specialization of existing railway lines on the line with mainly freight and on the line with mainly passenger traffic. But due to the insufficiently dense railway network, the implementation of such projects leads to appearance of large train runs and an increase in the cost of transportation. The article shows that the organization of high - speed railway traffic on the existing mainline reduces the train running time by using the example of Moscow - Voronezh - Rostov-on-the-Don - Krasnodar - Sochi transport corridor, which is experiencing a shortage of carrying capacity, and the project of specialization of the mainline for high-speed passenger traffic. In the conditions of fierce competition with air and road transport, the travel time of 16-18 hours to Sochi will not change the distribution of passenger traffic between modes of transport, but only maintain the status quo. But the removal of freight traffic from the Voronezh - Rostov line will bring big losses both for JSC «Russian Railways» (the loss of the cargo base) and for the economy of the whole country. The ETW method is used to compare the overall environmental impact of freight trains movement on a non-circular route, their movement through Volgograd, as well as on road transport. It is proved that when the cargo flow is carried out on a circular route, the environmental advantage of railway transport is lost, and its impact is compared with that of road transport. It is concluded that instead of specialization of the existing congested lines, it is necessary to consider the phased construction of a new specialized high-speed railway (HSR), for the payback of which there is already sufficient passenger traffic in this transport corridor.

scholarly journals ANALYSIS OF EXISTING PASSENGER TRAFFIC BY MODE OF TRANSPORT AND ASSESSMENT THE COMPETITIVENESS HIGH-SPEED TRAFFIC IN UKRAINE

2020 ◽  
Author(s):  
Anna Shevchenko ◽  
Natalya Bugaec ◽  
Nadiia Murygina ◽  
Yevhen Korostelov ◽  
Gintas Viselga
Keyword(s):  
High Speed ◽  
Railway Network ◽  
High Speed Railway ◽  
Passenger Traffic ◽  
Gradual Introduction ◽  
Railway System ◽  
Basic Characteristics ◽  
Mode Of Transport ◽  
The Cost ◽  
Cost Of Construction

The article analyses the volume of passenger traffic from 1990 to 2019 for land, water and air transport. From the materials obtained and the experience of the networks of European and world high-speed railways, goals are set. High-speed lines designed exclusively for passenger traffic. This moment plays an important role in reducing the cost of construction, increasing the market and economic profitability. According to the data from the State Statistics Service of Ukraine, it is possible to calculate the passenger flow based on the known parameters for 2020–2032 in the direction of Kiev-Lviv. The design of high-speed lines should meet general requirements aimed at satisfying the basic characteristics of a high-speed railway system, which works in conjunction with the European High-Speed Railway network. The compatibility of the parameters of high-speed lines with the parameters of traditional lines is part of the operational requirements for the gradual introduction of a network of high-speed railways. Possible scenarios to achieve the required compatibility should cover all subsystems.

scholarly journals HIGH SPEED RAILWAY LINES – FUTURE PART OF CZECH RAILWAY NETWORK?

2017 ◽  
Vol 11 ◽  
pp. 74
Author(s):  
Lukáš Týfa ◽  
David Vodák
Keyword(s):  
High Speed ◽  
Railway Network ◽  
High Speed Rail ◽  
High Speed Railway ◽  
Railway Line ◽  
High Speed Trains ◽  
The One ◽  
Infrastructure Maintenance ◽  
The Relationship ◽  
Multiple Units

The paper first describes high speed rail generally and explains the relationship between high speed and conventional railway networks (according to the vehicle types in operation on the network). The core of the paper is comprised of the methodology for choosing the best route for a railway line and its application to the high speed railway connection Praha – Brno. The Algorithm used assumes the existence of more route proposals, which could be different in terms of the operational conception, line routing or types of vehicles used. The optimal variant is the one with the lowest daily cost, which includes infrastructure and vehicle costs; investment and operational costs. The results from applying this model confirmed the assumption, that a dedicated high speed railway line, only for high speed trains, has the same or lower investment costs than a line for both high speed and conventional trains. Furthermore, a dedicated high line also has a lower cost for infrastructure maintenance but a higher cost for buying high speed multiple units.

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