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Kanefuji M.,Railway Operations Headquarters | Ikeda K.,Toshiba Corporation
Japanese Railway Engineering | Year: 2012

West Japan Railway Company (JR West) has developed Transportation Planning System which was put into practical use from April in 2010. The transportation plan in JR West consists of the Basic plan which is created when train timetables are revised and the Implementation plan which will set temporary extra train services in response to forecasts of daily demand or other various measures. It has developed a job assignment system which enabled to lessen the workload of manual entries and their check at crew depots and stations in the view to transform such a way of job duties in the field. Transportation Planning System consists of the Planning system, the Central server, and the Transit field management system. The generation of the Implementation form is performed, determining types of daily train operations on the Basic form by the calendar date and reflecting automatically extracted revised contents on the selected Basic form. Source


Ise K.,Railway Operations Headquarters
Japanese Railway Engineering | Year: 2012

JR East is carrying out various measures for further monitoring of railway tracks. The company has introduced a track measuring trains named East-i, in full-scale operation on electrified and non-electrified sections of conventional lines and Shinkansen lines since around FY2003. East-i outputs on board the data for train shaking acceleration and vibration acceleration in an axle box, and manages it by incorporating into the track management system. It also carries the track spacing measuring device and measures the spacing between the two tracks by recording on board the position on the 2D coordinates of the measuring cars running track and the right and left rail of the adjacent track. The ultrasonic rail flaw detector car is introduced in order to determine the details of any of flaw inside a rail. It has also developed a turnout inspection device monitoring the track irregularity status with a camera and the wear status of a member with a laser beam. This permits the continuous measurement of turnout track irregularity and high precision monitoring. Source


Nakazawa A.,Railway Operations Headquarters | Shimizu T.,JR West Japan Consultants Company | Takahashi Y.,Asia West
Japanese Railway Engineering | Year: 2016

For adequate maintenance of bridge structures, it is important not only to accumulate data in a maintenance cycle but also to update and edit the data to the latest data as necessary. This paper introduces a system we have developed to identify the positions and shapes of deteriorations from photographs by generating 3D models, and to grasp their exact quantities and manage the data chronologically. It also describes how we are provisionally starting to use the system for bridge maintenance management on the Hokuriku Shinkansen railway line prior to practical application. Source


Tanaka I.,Railway Operations Headquarters | Hirakawa T.,JR Kyushu Consultants Company | Suzuki K.,Shimizu Corporation
AIJ Journal of Technology and Design | Year: 2011

It is very important to reduce vibration caused by train running for the station building which included railway tracks. Floating slabs as isolated tracks were used to avoid the problem of structure-borne noise in new Hakata station building. In order to replace tracks of commercial line to floating slabs, for example the steel girder fastened rails directly were used and special travelling cranes were designed to remove the temporary steel girders. As results of vibration measurement, the floating slabs turned out to reduced the vibration level on the station building floor by 25dB. Source


Tanaka I.,Railway Operations Headquarters | Onizuka R.,Corporate Planning Headquarters
Memoirs of the Faculty of Engineering, Kyushu University | Year: 2010

At major hub stations in wide urban areas, relative changes have taken place over a long period of time between the quantity and quality of passengers and the functions of railways as a transportation system and a transportation node. However, it is often the case that no drastic review has been made about station squares. What is required from station squares in the future to improve the convenience of railway services and at the same time solve problems in fulfilling their functions as a transportation node? In this paper, methods of station square development are discussed from a practical and broad perspective, as well as in connection with the advanced development of station areas and the development of their surrounding districts. In the process, we refer to a development approach that incorporates an urban square function into the station square and also take the development of Hakata Station as an example. Source

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