Sustainability for Signalling and Control Systems Projects Is it worth the candle? ASPECT 2012 - Peter Symons Tritun Pty Ltd
Trains are Good 910kg greenhouse gas saved p.a. from Brisbane Airport to City
Agenda Australian Carbon Tax EEO (no not that one) Trackside System Energy Management
Sustainability a definition Using, conserving and enhancing the community's resources so that ecological processes, on which life depends, are maintained, and the total quality of life, now and in the future, can be increased. Rail System Energy Use
Australian Carbon Tax 23 AUD per tonneof carbon dioxide since 1 July 2012 effective to 2015 Intended to be a 1. Financial incentive to reduce carbon pollution 2. Driver to invest in clean energy Aim to reduce energy consumption
Energy Efficiency Opportunities -EEO Mandatory EEO reporting from 1 July 2012 Transport 7%
Typical Australian Suburban Railway 76% 4%
EEO Initiatives Efficient driving practices Shutting down stabled trains LED lighting on trains Regenerative braking More efficient diesel engine minimising fuel use Freight bogie condition monitoring None involve signalling and control systems!
Trackside -What is a Smart Grid? Smart Grid -more costs with limited benefits to the consumer -metering Turning off parts of the S&C system may compromise safe and reliable operation However if parts of the system used improved battery technology perhaps peak loads could be reduced
Signalling Control Systems -Energy Signalling and Control System Standing Loads Baseline Replacement Future? Old New Load Future? Train Detection Track circuits Axle Counter Less Train Integrity 0 Signals Lamps LED Less Cab Signalling 0 Interlocking Relay CBI Distributed Less CBI/RBC Centralised Less Train Protection Trainstops/AWS/TPWS ETCS L1 Less ERTMS L2 or L3 0 Traffic Management Signal Box Control Centre Less Intermittent Loads Network Management Centre Same Points Electric/Pneumatic Electric/Pneumatic Same Pneumatic Less Train Protection Trainstops/AWS/TPWS 0 0 Level Crossings Relay GCP Less GCP Same
Loads Standing Loads Baseline - Track circuits Replacement - Axle Counters Future -On board train integrity = 0 energy trackside Intermittent Loads Point Electric to Pneumatic Future Pneumatic -permits off peak energy store Avoidance Transfer of trackside to on board e.g. cab signalling Centralisation Network Management Centre buildings designed for minimal energy use
System Energy Management Train Position Update Dynamic TT Conflict Resolution Speed Regulation DMI Advice Energy ARS Automatic Route Setting MA or TSR Energy Efficient Train Regulation
Rollingstock Energy Management Options No DMI Driver Education to influence energy efficient driving DMI (Driver Assist) Speed up slow down coast static onboardsystem Cruise Control on board system plus GPS Extend ATP/ETCS provide timetable updates and MA etc Automated System Integrated dynamic Traffic Management System a.k.a. ATS and ATO
CATO Courtesy Transrail Sweden AB Driver Assist
ERTMS as an Enabler In Australia ETCS and GSM-R projects are being planned or implemented ETCS on board provides accurate position and speed information for the Traffic Management System An ERTMS DMI has the ability to display Driver Assist type information Stepping stone to Automatic Train Operation to reduce driving variability and save energy
Investment in Driver Assist Investment in Rolling stock energy management systems Best energy benefit is for an integrated railway Simpler systems realise benefits for the train operators Complex systems offer best industry benefit but at a higher investment cost Energy use needs a greater weighting in business case development perhaps the price on carbon will assist?
So is investment in S&C Projects worth it? Energy savings Trackside Changing globes to LED, relay interlocking to CBI not much Cab signalling -removal of linesidesignals and train detection - bit better Energy Savings S&C System Leverage from ETCS + GSM-R = ERTMS Using Driver Assist/ATO to improve energy management = metro type operation for suburban operations
Thank You for your attention