Alstom Signalling Railway-Industry-Technologies ... · Signalling presentation CBTC, the right...

Signalling presentationCBTC, the right Solution for the right Needs

Istanbul – 7th September 2016

© ALSTOM SA, 2015. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authorisation, is strictly prohibited

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Urban Signalling solutions

CBTC: the right solution for high performances

CBTC: the right solution for easy operation

CBTC: the right solution with light maintenance

CBTC: the right solution with high level of safety

CBTC: the right solution with friendly support to traffic controller

URBALIS™ CBTC U400: the right solution with platform approach7


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URBALIS™ CBTC U400: the right solution with platform approach

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What is CBTC?Communication-Based Train Control System

CBTC means Communication Based Train Control

CBTC is the modern version of ATCand ATC means Automatic Train Control

As defined in the IEEE 1474 standard, a CBTC system is a continuous, automatic train control system using :• high-resolution train position reports, independent of track circuits the trains

send their position to wayside computers,• continuous, high-capacity, bidirectional train-to-wayside data

communications,• trainborne and wayside processors capable of implementing Automatic Train

Protection (ATP) functions, as well as optional Automatic Train Operation (ATO) and Automatic Train Supervision (ATS) functions.

CBTC is the standard Signalling solution for Metro Operation


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What is ATC?Automatic Train Control system

ATC or Automatic Train Control is an electronic system that protects trains against over speeding, collisions and derailment when trains pass crossovers (or curved lines)

ATC includes two (2) main functions: ATP and ATO…

ATP or Automatic Train Protection is the fail-safe part that stops a train when any dangerous situation arrives;

ATO or Automatic Train Operation is the “robot” that drives the train under the close supervision of the ATP.

ATC = ATP (Safety) + ATO (Performance)


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How does CBTC work?

Train Location computed on-board each train Train location sent by radio from each train to wayside Zone Controller Wayside Zone Controller computes “End of Authority” of each train and

sends it by radio to each train ATP safe braking speed curve computed on-board each train

Automatic protection envelope

Train Y…Train BTrain A…Train X

Train borne ATC sends Train Location

Wayside computes End of Movement

Authority

Train B calculates safe braking speed curve

End of Movement Authority

Train borne ATC computesTrain Location

Wayside Zone Controller

ATC beacon

…thanks to Moving Block, CBTC increases line capacity (more trains)


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Why the need for CBTC?

Based on fixed blocks for protection

Provides rough position of trains

protecting long space to ensure

protection

more distance needed between

trains

Conventional signaling

Continuous communication

link between trains and wayside

Much more precise position of

the train at all times

Less space needed to ensure protection

Distance between trains

is reduced

CBTC solution with moving block

…with less wayside equipment, CBTC increases line capacity (more trains)


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CBTC PerformancesCapacity increase: up to 60 trains per hour

High performance moving block shortens train interval

Short headways achieved without compromising commercial speed


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Automatic Train Operation strategyEnergy saving & Optimized driving

Maximised energy savings and optimised maintenancethrough accurate train simulation

ATO Combines different strategies to enhance energy savings • Coasting optimization• Power limitation• Limited acceleration• Speed limitation• Optimization of Electrical brake

Decreases number of activationsof braking and traction relaysto reduce maintenance & energy consumption

up to 30% Energy Savings (with intelligent ATO and ATR)


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-0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.30

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Stopping accuracy (m)

Per

cent

age

of s

tops

Stopping accuracy

-0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15 0.20

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Stopping accuracy (m)

Per

cent

age

of s

tops

Stopping accuracy

Automatic Train Operation strategyTrain Stopping accuracy

Measured stopping accuracy

95% : +/- 9.5cm99% : +/- 11.5cm99.5% : +/- 13cm100% : +/- 15cm

Shenzhen L5 Shanghai L10

Robust stopping accuracywhilst preserving commercial speed and passenger comfort

Passengerscomfort

Stoppingaccuracy

Commerciaspeed


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URBALIS™ Grades of AutomationIEC Standard 62290-1

Grade of Automation

(GoAn)

GoA1

GoA2

GoA3

GoA4

Train Operation

ATP with Driver

ATP and ATO with Driver

Driverless (DTO)

Unattended (UTO)

Setting Train in Motion

Driver

DriverAutomatic

Automatic

Automatic

Driving and Stopping

Train

Driver

Automatic

Automatic

Automatic

Door Closure

Driver

Driver

AttendantAutomatic

Automatic

Operation in the event

of Disruption

Driver

Driver

Attendant

Automatic

Designed for driverless – Can operate at any Grade of Automation

• ATP: Automatic Train Protection• ATO: Automatic Train Operation• DTO: Driverless Train Operation • UTO: Unattended Train Operation

UR

BA

LIS

™

Grade of Automation: from GoA1 to GoA4, from Manual Operation (driver) to Full Automated Operation (FAO) through an overall System Approach


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CBTC typical architecture with its sub-systems

SMART I/OStation

Maintenance

URBALIS ATCOnboard

Controller

Zone ControllerURBALIS ATC

Zone ControllerSMARTLOCK

400

DCS – GIGABIT NETWORKS

RADIOS

ICONISATS & SCADAPIS & Security

PIS & Security

PIS & Security

A modular and scalable architecture, either distributed or centralised


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Highest Level of Safety… and Availability!

IXL and ATC sub-systems at the highest Safety Level (SIL4) by international & official authorities

Service proven: circa 40 lines in revenue service and as many on-going projects… and more to come

Highly Available architecture (with redundancy principles and stand-by mechanisms)

Track records: 99.998% of signaling system availability

Safe Design

Available Architecture


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Automatic Train Supervision:through a modular software architecture

Functional layering and modules

Layer 1: Basic functions, supervision & control

• IXL monitoring and manual control• Train control• Train tracking and identification• Route setting

Layer 2: Planning and automation

• Online timetable management• Traffic regulation (from timetables to headway)• Terminal management• Junction management

Layer 3: Operation Decision Support

• Management of operations and Incidents• Regulation modes management• Automatic garage management

• Alarms & Events• Login & Territory

assignment• Quality of Service• Archiving• Playback

Support Functions

• Signaling layout• Train graphs• Timetables• Forms

HMI

A scalable application with different layers, to better support Metro Operation


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ICC: Solution for Integrated Control Centres

Energy, Ventilation, AncillariesPassenger information

Train interface

Mass transit Suburban

SignallingSecurity (CCTV,…)

Integrated Control Centres:the eyes of the operator


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Platform strategy – … to system and deployment

URBALIS™ Solution is a Generic Platform used for previous projects This generic platform is already integrated and validated with generic

data, in factory, with a typical configuration Then, it is instantiated (or configured) for deployment on each project

by parameters that describe the line*

Benefits• No need to redevelop a new solution for each project• Solution builds on experience : it benefits from feed-back of previous

projects• Shorter projects• Important and dedicated R&D means• High quality level of the engineering process

Generic Platform Project A Project B Project C…

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* The principle is similar to the data preparation used for Computer Based Interlocking (CBI)

URBALIS™ Platform deployment is based on data preparation


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URBALIS™: a robust engineering process

Formal specification of vital software

Formal proof (B method) for vital software

Factory Integration and Validation Platform (FIVP)

Duplicate of the delivered system in a factory environment

75% of I&V process is performed with the FIVP: trouble shooting is done before delivery to the field

Stable and mature software & data/parameters delivered to site.Shortens and masters the site test period for:• a full and integrated Testing Strategy covering all the needs of

the Project / Customer: functional, operational and safety;• a fully Safety compliant process with Customer / ISA

attendance.

Supports Customer training (O&M staff)and maintenance activities


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Production units

Factory Integration & Validation Platform

Project engineering centres

Rochester Madrid

Paris

Bologne

Budapest

Hong Kong

Beijing

Shanghai

Charleroi

Istanbul

Buenos AiresSantiago

Sao Paulo

Bangalore

Villeurbanne

A platform deployed from various sites around the worldwith a given tooling suit to be as close as possible to end users

Various Engineering Centres to better serve Customers and transfer know-how

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Alstom Signalling Railway-Industry-Technologies ... · Signalling presentation CBTC, the right...

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