REGISTER

Rajendra Jadhav B Eng, MBA, AMIRSE

Bombardier Transportation

This paper provides an overview of the Bombardier* CITYFLO* 450/650 Communication Based Train Control (CBTC) systems. CITYFLO 450/650 are emerging as the leading technologies, which were recently selected as the preferred train control in major systems such as the Neihu Rapid Transit system in Taiwan, the Yong-In LRT system in South Korea and Madrid Metro's Lines 1 and 6 in Spain.

The paper elaborates on specific concepts / definitions that are applied to the moving block CBTC technology and will explain the architecture of the CITYFLO 450/650 systems emphasising the approach taken while conceptualising the design of these systems. The paper also describes some of the special features that make these solutions first in their class.

The paper also discusses the methodology used to satisfy the overlay approach where the operator demands the implementation of a CBTC system on an existing operational or "brownfield" system, without affecting existing operations. It specifically addresses the interesting application of CITYFLO 650 for the Neihu-Muzha lines in Taiwan, which has the unique characteristics of being both greenfield and brownfield with an existing 12-km line and the new 15-km extension, as well as featuring both new and existing rolling stock. The paper describes the Bombardier approach and strategy to achieve implementation with such challenging requirements.