scholarly journals Analyzing the Difference between the Stated Preference and the Revealed Preference before/after the High-speed Rail Service in Korea

2014 ◽  
Vol 7 (1) ◽  
pp. 24-33
Author(s):  
Jang-Ho Lee
Keyword(s):  
High Speed ◽  
Stated Preference ◽  
Revealed Preference ◽  
High Speed Rail ◽  
The Difference ◽  
Rail Service

scholarly journals A study on small-world characteristics of Chinaäó»s high-speed railway networks

2016 ◽  
Author(s):  
Xin Yuan ◽  
Guo Liu ◽  
Kun Hui Ye
Keyword(s):  
High Speed ◽  
Small World ◽  
Clustering Coefficient ◽  
High Speed Rail ◽  
Attribute Data ◽  
The Social ◽  
The Difference ◽  
Global And Local ◽  
The Relationship ◽  
Space Method

The small-world model provides a useful perspective and method to study the topological structure and intrinsic characteristics of high-speed rail networks (HRNs). In this paper, the P-space method is used to examine global and local HRNs in China, meanwhile the adjacency matrix is developed, then the social network analysis and visualization tool UCINET is used to calculate the spatial and attribute data of HRNs at national and local levels in China. The small-world characteristics of whole HRNs are discussed, three networks which have different properties are determined, and a comparative analysis of the small-world effect is detected. Then, the relationship between the construction of high-speed rail and regional development of China is analysed. The results show that: 1) China's HRNs have small average path length ( L ) and large clustering coefficient (C ), representing a typical small-world network; 2) Local HRNs have a certain correlation with economic development. The reasons for the difference of HRNs with respect to characteristics among regions are eventually discussed.

scholarly journals Preliminary Study on Assessing Delaminated Cracks in Cement Asphalt Mortar Layer of High-Speed Rail Track Using Traditional and Normalized Impact–Echo Methods

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3022
Author(s):  
Ying-Tzu Ke ◽  
Chia-Chi Cheng ◽  
Yung-Chiang Lin ◽  
Yi-Qing Ni ◽  
Keng-Tsang Hsu ◽  
...  
Keyword(s):  
High Speed ◽  
Concrete Slab ◽  
Amplitude Spectrum ◽  
Peak Frequency ◽  
High Speed Rail ◽  
Impact Echo ◽  
Rail Track ◽  
Cement Asphalt Mortar ◽  
The Difference ◽  
Ca Mortar

The severe deterioration of a cement asphalt (CA) mortar layer may lead to the movement of the upper concrete slab and impair the safety of the speedy train. In this study, a test specimen simulating the structure of high-speed rail track slabs was embedded with delaminated cracks in various lateral sizes inside the CA mortar layer. Impact–echo tests (IE) were performed above the flawed and flawless locations. In present study, the IE method is chosen to assess defects in the CA mortar layer. Both traditional IE and normalized IE are used for data interpolation. The normalized IE are the simulated transfer function of the original IE response. The peak amplitudes in the normalized amplitude spectrum and the peak frequency in the traditional amplitude spectrum for the top concrete overlay were used to develop simple indicators for identifying the integrity of the CA mortar layer. The index was based on the difference of the experimental peak amplitude and frequency of the ones calculated from previously developed formulas for plates without substrates. As a result, the technique does not require an experimental baseline for the crack assessment. A field test and analysis procedure for evaluating high-speed rail slab systems are proposed.

Moving element analysis of discretely supported high-speed rail systems

2017 ◽  
Vol 232 (3) ◽  
pp. 783-797 ◽  
Author(s):  
Jian Dai ◽  
Kok Keng Ang ◽  
Minh Thi Tran ◽  
Van Hai Luong ◽  
Dongqi Jiang
Keyword(s):  
High Speed ◽  
Railway Track ◽  
High Speed Train ◽  
Element Analysis ◽  
High Speed Rail ◽  
Mass System ◽  
Rail System ◽  
Rail Systems ◽  
Track System ◽  
The Difference

In this paper, a computational scheme in conjunction with the moving element method has been proposed to investigate the dynamic response of a high-speed rail system in which the discrete sleepers on the subgrade support the railway track. The track foundation is modeled as a beam supported by uniformly spaced discrete spring-damper units. The high-speed train is modeled as a moving sprung-mass system that travels over the track. The effect of the stiffness of the discrete supports, train speed, and railhead roughness on the dynamic behavior of the train–track system has been investigated. As a comparison, the response of a continuously supported high-speed rail system that uses a foundation stiffness equivalent to that of a discretely supported track has been obtained. The difference in results between the “equivalent” continuously supported and the discretely supported high-speed rails has been compared and discussed. In general, the study found that a high-speed train that travels over a discretely supported track produces more severe vibrations than that travels over a continuously supported track of equivalent foundation stiffness.

scholarly journals High-speed rail service: Issues for the Detroit-Chicago corridor

1984 ◽  
Vol 18 (2) ◽  
pp. 185-204 ◽  
Author(s):  
William C. Taylor ◽  
Richard W. Lyles
Keyword(s):  
High Speed ◽  
High Speed Rail ◽  
Rail Service

scholarly journals Demand Forecast of Jakarta-Surabaya High Speed Rail based on Stated Preference Method

2019 ◽  
Vol 10 (2) ◽  
pp. 405
Author(s):  
Harun al-Rasyid Lubis ◽  
Vinsensius Budiman Pantas ◽  
Muhammad Farda
Keyword(s):  
High Speed ◽  
Stated Preference ◽  
Demand Forecast ◽  
High Speed Rail ◽  
Stated Preference Method

scholarly journals Social Exclusion and High-Speed Railways: Evidence from China

2021 ◽  
Vol 15 (1) ◽  
pp. 133-146
Author(s):  
Labib Azzouz ◽  
Anson Jack
Keyword(s):  
Social Exclusion ◽  
High Speed ◽  
Online Survey ◽  
Stated Preference ◽  
Revealed Preference ◽  
The Elderly ◽  
Modal Shift ◽  
Policy Interventions ◽  
Economic Exclusion ◽  
The Relationship

Background: Despite their economic, social, and environmental advantages, HSRs are associated with some negative social impacts and controversy about their equitability. Gap: Very few studies have explored the relationship between HSR and social exclusion. Aims: This paper examines the relationship between HSR and social exclusion, and it focuses on China as a case study. Objectives: The objectives of the study are as follows; to identify the most important and favourable factors for choosing HSR from passengers' perspective; to reveal issues and reasons that inhibit passengers from using HSR and limit their accessibility to the service, and to propose some solutions and interventions. Methods: The study utilizes an online survey comprising a set of stated preference and revealed preference questions. A total of 3655 responses were collected, of which 3353 responses were complete and useful. Results: A key finding is that comfort is proven to be the most favourable factor for using HSR, followed by travel time and reliability. Another finding is that the economic exclusion followed by the geographical exclusion is prevailing across different age and monthly income groups of non-HSR users. Those who have the lowest income and the elderly experience the strongest levels of economic exclusion. Moreover, physical, time-based, and fear-based exclusions are also notable. Conclusion: To create a modal shift from other modes to HSR and allow more groups to access the service, HSR should be competitive in terms of affordability and accessibility. Possible solutions and policy interventions that may help to tackle categories of social exclusion in China are presented.

scholarly journals Factor Analysis of Customized Bus Attraction to Commuters with Different Travel Modes

2019 ◽  
Vol 11 (24) ◽  
pp. 7065 ◽  
Author(s):  
Jing Li ◽  
Yongbo Lv ◽  
Jihui Ma ◽  
Yuan Ren
Keyword(s):  
Travel Demand ◽  
Stated Preference ◽  
Revealed Preference ◽  
Ordered Logit ◽  
Successful Operation ◽  
Mixed Effect ◽  
Mode Shift ◽  
Positive Effects ◽  
The Difference ◽  
And Gender

The customized bus (CB) is an innovative and environmental supplementary mode of public transport, providing demand-responsive and user-oriented service to specific passenger groups with similar travel demands, especially commuters, based on online reservations. However, sufficient travel demand is essential for the successful operation of CB. The purpose of this study is to analyze the factors influencing the attraction of CB to commuters, which is tied to the ordered mode shift decisions, do no transfer to CB, remain undecided, and transfer to CB. A combination of revealed preference (RP) survey and stated preference (SP) survey is conducted among commuters in Beijing through online and offline questionnaire, collecting 1304 valid commuting demands. The ordered logit (OL) model and two-level mixed-effect ordered logit (MEOL) model are used to estimate the variable effects and the difference in five commute modes, including car, taxi, bus, rail, bus + rail, is considered. Common variables significantly influencing the transfer decision in all groups are specified in models, including familiarity to CB, seat availability, and gender. Meanwhile, travel cost, travel time, and transfer time of the current travel mode have positive effects on the attraction of CB. In addition, car ownership and accessibility to bus stations also influence the attraction of CB to certain group commuters. This paper can provide references to CB operators for formulating differentiation strategies and attracting more passengers in Beijing.

scholarly journals SOCIAL EXCLUSION AND HIGH SPEED RAIL: THE CASE STUDY OF SPAIN

2016 ◽  
Author(s):  
Francesca Pagliara ◽  
Fabrizio Menicocci ◽  
Jose Manuel Vassallo ◽  
Juan Gomez
Keyword(s):  
Social Exclusion ◽  
High Speed ◽  
Revealed Preference ◽  
Transport Systems ◽  
Long Distance ◽  
High Speed Rail ◽  
Socioeconomic Characteristics ◽  
Rail System ◽  
Rail Systems

Very few contributions in the literature have dealt with the issue of social exclusion related to High Speed Rail systems. The objective of this manuscript is to understand what are the factors excluding users from choosing High Speed Rail services considering as case study Spain. For this purpose, a Revealed Preference survey was employed in November and December 2015. A questionnaire was submitted to users of the Spanish transport systems travelling for long distance-journeys. The aim was that of investigating their perception of High Speed Rail system and the factors inhibiting passengers or excluding them from its use. Data about their socioeconomic characteristics were collected as well. The main result of the survey has been that a relationship between social exclusion and High Speed Rail in Spain is present, especially in terms of geographical exclusion.DOI: http://dx.doi.org/10.4995/CIT2016.2016.3100

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