Application Of Communication Based
Moving Block Systems On Existing Metro Lines
Author(s)
L. Lindqvist & R. Jadhav
Abstract
The unique features of Communication Based Train Control (CBTC) systems
with Moving Block (MB) capability makes them uniquely suited for application
‘on top’ of existing Mass Transit or Metro systems, permitting a capacity
increase in these systems. This paper defines and describes the features of
modern CBTC Moving Block systems such as the Bombardier* CITYFLO* 450
or CITYFLO 650 solutions that make them suited for ‘overlay’ application ‘on
top’ of the existing systems and gives an example of such an application in a
main European Metro. Note: *Trademark (s) of Bombardier Inc. or its
subsidiaries.
Keywords: CBTC, Moving Block, CITYFLO, TRS, Movement Authority,
norming point, headway.
1 Introduction
The use of radio as a method of communication between the train and wayside in
Mass Transit systems, instead of the traditional track circuits/axle counters and
loops is gaining popularity. The radio based CBTC systems are uniquely suited
for application ‘on top’ of existing Mass Transit or Metro systems for increased
traffic capacity as CBTC systems normally do not interfere with the existing
systems. This allows an installation of the CBTC system in a line in operation
whilst maintaining full safety and capacity during the process.
The fact that CBTC systems also allow Moving Block operation adds to the
possible increased traffic capacity that can be achieved with such systems.
Keywords
CBTC, Moving Block, CITYFLO, TRS, Movement Authority,
norming point, headway.
Related Book
Other papers in this volume
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