A New Signaling System Applying Information Technology

OVERVIEW: The primary role of a signaling system is to ensure the safe and stable running of trains. There is also a great need, however, for improving the efficiency of railway operations and reducing the maintenance cost through the modernization of signaling systems. One approach to meeting these needs is a highly safe and highly functional signaling system using general-purpose computers. Hitachi, Ltd. is at the forefront of the trend toward generalized signaling systems through its development of “electronic interlocking devices for flexible composition.” Hitachi is also working to modernize the entire signaling system by applying generalpurpose computer technology and latest information technology to electronic terminals, level crossing controllers, and fail-safe transmission equipment. In the years to come, Hitachi will continue its efforts in developing modern signaling systems appropriate for the needs of the 21st century. As a total system integrator, Hitachi aims to achieve a total railway system that can make a contribution to the entire railway industry. Hitoshi Yanagi Naohiro Kasuya Dai Watanabe