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JR East Expands ATS Deployment

East Japan Railway Company

December 12, 2007

JR East has been systematically installing Automatic Train Stop (ATS) systems, including ATS-P and ATS-Ps, at additional locations. We have also been working to improve the functionality of these systems.

The amended Ministerial Ordinance Governing Technical Standards for Railways (hereafter amended Ministerial Ordinance) went into effect on July 1, 2006, and JR East has been taking action in response to this and other factors by expanding the deployment of ATS systems. These systems are being installed at turnouts and route terminals, as described below:

  1. Turnouts

    Measures to prevent excessive speed at turnouts have included installation ATS-P and ATS-Ps systems. Installation at 378 stations had been completed prior to the amended Ministerial Ordinance, and we are now adding another 169 stations. As a result of reviews undertaken in connection with the amended Ministerial Ordinance and other factors, we have decided on installations at 278 more stations. This will bring the deployment of these systems to a total of 825 stations by fiscal year 2015.

  2. Route terminals

    Measures to prevent excessive speed at route terminals have also included installation of ATS-P and ATS-Ps systems. These had been installed at 38 stations prior to the amended Ministerial Ordinance, and we are now proceeding with deployment to another 24 stations. As a result of reviews undertaken in connection with the amended Ministerial Ordinance, we have added one more station to the list. With these measures, JR East is scheduled to complete deployment of systems at a total of 63 stations by fiscal year 2015.

  3. Descending grades

    With issuance of the amended Ministerial Ordinance, JR East has decided on the further deployment of ATS-P and ATS-Ps systems to prevent excessive speed on descending grades. We are scheduled to complete deployment of systems at a total of 1528 locations by fiscal year 2015.

Curves
There are 63 locations for emergency deployment according to Measures to Limit Speed When Entering Sharp Curves (National Railway Enforcement Notification No. 29, dated May 2, 2005). This work was completed by the end of fiscal year 2005.
In conjunction with these measures, JR East set its own standards for locations other than those requiring emergency deployment. We have accordingly proceeded with improvement at an additional 837 locations, and we are scheduled to have completed deployment at a total of 900 locations by the end of fiscal year 2009. The JR East in-house improvement standards have already satisfied the requirements in the amended Ministerial Ordinance, and at present we have no new plans in this regard.
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