Development Of The New CBTC System
Simulation And Performance Analysis
Author(s)
R. Chen & J. Guo
Abstract
This paper introduced the new developed CBTC (Communication Based Train
Control) system simulation and performance analysis (hereafter called the
simulator) in Southwest Jiaotong University from the system architecture,
functions, modeling and algorithms. The simulator is a software program to
simulate the movement of trains in the system. It applies the same signal rules of
a project without any real hardware or software. A directed graph of track layout
and the CBTC moving block train control model used in the simulator are
introduced. The main purpose of the simulator is to calculate the system
headway and trip speed under the current system configuration and block design.
Headway is defined as the time interval between the successive trains moving
along the same track in the same direction through the same point. Minimum
Design Headway is a key parameter in a system. In this paper, the principle of
the in-line station headway and the turn-back station headway calculation are
described, and the examples of Chengdu line 1 are provided.
Keywords: CBTC, train control, headway, simulation, performance analysis,
safety braking model, safety distance, directed graph.
1 Introduction
With the rapid development of urban railway transit, the new moving block
technology CBTC has been the trend of the urban railway Automatic Train
Control (ATC) system. To carry out the system simulation and evaluate the
system performance is an important step in the system design stage.
The main purpose of the simulation is to calculate the system headway and
trip speed with the current system configuration and block design. Headway is
Keywords
CBTC, train control, headway, simulation, performance analysis,
safety braking model, safety distance, directed graph
Related Book
Other papers in this volume
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