نتایج جستجو برای: high speed rail operations

تعداد نتایج: 2300653  

2015
Ahmadreza Talebian Bo Zou

7 This paper proposes a three-stage game-theoretic model to study air-rail competition in intercity 8 passenger corridors. We consider duopolistic markets, in which a rail agency competes against an airline to 9 maximize their respective objectives. The objective of the rail agency can be maximizing profit or social welfare, 10 or a mix of the two. At the top stage, the rail agency first determ...

2015
Ying Song Zhichen Wang Yanliang Du

Wheel out-of-roundness (OOR) inevitably jeopardizes the safety of railway operations. Regular visual inspection and checking by experienced workers are the commonly adopted practices to identify wheel defects. However, the defects may not be spotted in time. The paper puts forward a new method to real-time monitor wheel OOR based on PVDF strain sensor. Track strain response upon wheel-rail inte...

Journal: :OR Spectrum 2018

The purpose of this study is to provide a model with a dynamic system method to investigate the factors affecting the technological capabilities enhancement in the high-tech industries of high-speed train of the rail transportation system. For this purpose, after reviewing the literature and conducting several meetings with experts in the rail transportation industry, a conceptual and qualitati...

Journal: :IEICE Electronics Express 2023

The ToF system has a wide range of applications, including automatic driving, 3D reconstruction, and intelligent robot navigation, more. However, implementing time-of-flight (ToF) systems for measuring real-time distances objects with varying surface reflectance poses challenge. reflectivity object surfaces results in fluctuations the amplitude reflected pulse, causing input overdrive voltage t...

2014
Haichuan Tang Qingyuan Wang

With reduced environmental impact becoming an increasingly important benefit of the rail transportation mode, continual improvement in efficiency and reduced energy consumption has become a major concern to rail transit operators. For electrified rail transit operations, regenerative braking is one practical way for saving energy because it enables the kinetic energy of a train to be transmitte...

2014
Huimin Niu Minghui Zhang Wuhong Wang

The most important operating problem for intercity rail lines, which are characterized with the train operations at rapid speed and high frequency, is to design a service-oriented schedule with the minimum cost. This paper proposes a phase-regular scheduling method which divides a day equally into several time blocks and applies a regular train-departing interval and the same train length for e...

ژورنال: Journal of Railway Research 2014
Betanzo-Quezada, E., Obregón-Biosca, S.A., Romero, J.A.,

In this paper a two-degree-of-freedom model representing the sprung mass and the sloshing cargo in a vehicle is proposed to study the dynamic interaction of a sloshing cargo and the carrying vehicle, to simulate the dynamic wheel forces on the rails as a result of lateral perturbations derived from turnings along the railway path and the resultant cargo sloshing. The use of the Fourth- and T...

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