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Akiyama Y.,Japan International Consultants for Transportation Co.
Japanese Railway Engineering | Year: 2015

Experts discuss the past and future progress of high-speed rail projects around the world. Tokaido Shinkansen in Japan was developed as the world's first such high-speed rail system along the 515-km route between Tokyo and Shin-Osaka, and started operating from October 1, 1964. TJV from France started operating such a high-speed rail system in the country after Tokaido Shinkansen high-speed rail system. These early high-speed rail systems emerged as the foundation for many such projects to be undertaken around the world, including one being undertaken in Europe to link major cities and enhance the transport network within the European Union (EU). Source


Kumasaka K.,Daido Signal Ltd. | Ishima R.,Japan International Consultants for Transportation Co.
WIT Transactions on the Built Environment | Year: 2014

In Japan, there are a lot of high-density railway lines and along the line the long warning time at level crossings has become a social problem. Particularly, about 600 level crossings have a warning time of more than 40 minutes per hour in rush hour. As a result, the traffic of cars and pedestrians is disturbed for a long time. Eliminating level crossings by making overhead crossings has been attempted, but a lot of time and costs are necessary. Therefore, it is an urgent problem to shorten the warning time for such level crossings. Although a constant warning time control for level crossings has been widely adopted at JR East as a countermeasure against the length of time that the level crossing barrier is closed, it requires a lot of hard work on its design and construction as well as testing because its control logic differs in level crossings. In order to cope with this situation, we employed a new train counting sequence, employing two types of counting logic to replace the track circuits. To realize this logic, we only need two starting points and one stopping point. When a train enters one of the two starting points, the train is counted according to the corresponding type. When the train leaves the stopping point, it is subtracted. Thus, we have achieved a train recognition sequence without track circuits. We can apply this simple sequence to all types of automatic level crossings. We are going to incorporate this logic in PLC (programmable logic controller) as a new microelectronic level crossing controller. It is expected to become a product after passing the field test. By using our development, it is expected to reduce the time for design, construction and testing. Furthermore, it is also expected to reduce the number of relays, which leads to a reduction in cost. By the above-mentioned effect, our development leads to the promotion of the introduction of Constant Warning Time Control for Level Crossing and becomes a contribution to society. © 2014 WIT Press. Source


Aikawa T.,Japan International Consultants for Transportation Co.
Japanese Railway Engineering | Year: 2012

Construction of urban railways in Asian cities has been on the rise in recent years. Since 2008, construction of the Urban Railway Line 1 in Ho Chi Minh City through Japan's ODA, which includes an EPC package for the training of train operation personnel, is underway. Furthermore, a JICA Technical Cooperation project to help establish an operation and maintenance company has also started in April 2011. This article gives an overview of the project and discusses the major issues. Source


Komatsu H.,Japan International Consultants for Transportation Co. | Takami M.,Japan International Consultants for Transportation Co.
Japanese Railway Engineering | Year: 2015

This technical cooperation project is a project which Japan International Cooperation Agency (JICA) placed an order, and is being implemented with Myanma Railways (MR) as a counterpart. We mainly transfer track maintenance technology of Japan to 30 MR staff members every month through the practical training on site in the period from May 2013 to March 2016. Source

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