1 Developing the MBSE Approach Tony Ramanathan Principal Engineer Network Rail

2 The Railway System Investment Governance GRIP Asst Life Models / Analysis used Interface Management – why we need Modelling Modelling Tools Design Handbook inc the Building Blocks Agenda

3 The people, The process applied, The systems used

4 Project Governance - GRIP “Project Life-Cycle” Governance for Railway Investment Projects (GRIP) There are Eight GRIP Stages A RUS scheme is outside of Project Governance and is between 5 to 7 years prior to GRIP 1 Pre-GRIP

5 System Capability Layout Capacity Signalling Capacity Electrification Capacity Infrastructure Loading Life Cycle Costs System Reliability Timetable Robustness Safety Risk Passenger Demand Analyses Used in Systems Engineering

6 Asset Life

7 Interface Management - train infrastructure interfaces OLE Contact Traction Power EMC Platform Occupation/ Dwell Times Platform Length/SDO Stepping Distance Station/ DDA Compliance Wheel/ Rail Interface Axle Load Route availability (RA) / Allowable Speeds Train Detection Track Conditions Track Design/Quality Drainage Tonnage passing (load) Gauging Clearance Kinematic Envelope (KE) Customer Information Systems (CIS) Lineside Infrastructure Signalling & Telecoms Passengers behaviour

Modelling Tools Systems Analysis Section number to go here

9 VTSIM Models often consider differing Time Horizons Spatial Representation * Analysis Time Horizon MinsHoursDaysPeriodsYearsMulti Years EMI RailSys Pedflow OSLO ICM Scheme level Route level Full UK CUI Asset level TRAIL SPA * Spatial representation within a single model

10 SA Approach towards Option Selection Option 1 Capability : Capacity Journey Times Power Reliability Maintenance Construction Whole life cost Option X Capability: Capacity Journey Times Power Reliability Maintenance Construction Whole life cost ‘Favoured Option’ Option Capability: Capacity Journey Times Power Reliability Maintenance Construction Whole life cost Option Selection SPA RailSys TRAIL TIP OSLO LCC Legion Option 1 Capability : Capacity Journey Times Power Reliability Maintenance Construction Whole life cost Option X Capability : Capacity Journey Times Power Reliability Maintenance Construction Whole life cost Requirements & Option Validation: Ops & Perf. Engineering Eng Policy Feasibility Systems Capability Modelling Preliminary Assessment ? ? ? Option 2 Capability: Capacity Journey Times Power Reliability Maintenance Construction Whole life cost ? ?

11 Typical System Breakdown Structure (SBS)

12 TRAIL (Transportation Reliability, Availability and Integrated Logistics) Infrastructure TRAIL discrete event simulator OperationsRolling stockTimetable Lateness Analysis Delay Analysis PPM Infrastructure Performance Operations Performance

13 What about RailSys? RailSys is used to provide the ‘operations tick in the box’ for any scheme Provides a very powerful visualisation of a timetable Can be used to identify detailed train path routeing and permits detailed event scenario modelling It does not do PPM Of note for engineers; the complexity within the model can vary (even if the model is compliant to NR Opns Build Ver6) Simple models are normally optimistic trains may exhibit movement behaviour which the driver / signaller might not be able to emulate in real life

14 Capacity Modelling Existing Layout Proposed Layout Thameslink KO2 – The need for ATO Crossrail – Scheme Performance Assessment ERTMS – Braking Curve Reading – Capacity Utilisation Index

Date Presentation title to go here15 SPA Process

16 Key contacts Specialist within Network Rail Nigel Best – TRAIL, RAILSYS, RAM, FMECA Clare Waller – Timetable Maya Petkova – EMC Mark Burstow – Wheel / rail dynamics Caroline Lowe – Climate + Asset specialist Gauging Power Signalling Telecoms Level Crossings

17 The people, The process applied, The systems used Section 1 What is SE Section 2 Intro to SE Teams Section 3 GRIP, P Approval & Acceptance Section 4 System Integration Section 5 Building Blocks Section 6 Requirements System Design Handbook Links work only in Presentation Mode

18 PSE – Building Blocks (guidance) (Links work in Presentation Mode) Junction Evaluation Junction Evaluation + PresentationPresentation Terminal Stations Line Speed & Journey Time Improvements Line Speed & Journey Time Improvements + Presentation Presentation Consideration for Gradients / Curves Gradients / Curves + Presentation Presentation Layout Development Workshops PRS user guide Light RailLight Rail + PresentationPresentation Rail Maintenance Depots Introduction to Building Blocks PSE Schemes Resource estimating Route Integration Application of Standard Designs System Capability Layout Capacity Signalling Capacity Electrification Capacity System Maintenance Life Cycle Cost System Reliability Timetable Robustness System Safety Passenger Capacity Undertaking a Pre Grip Evaluation Freight Distribution Depots Main Line Stabling Sidings Generic Train Infrastructure Interface Specification Interface Specification + Presentation Introduction To Station Design Equality Act 2002 (DDA)

19 Typical System Level Railway Functional Block Diagram (FBD)

20 DESIGN for RELIABILITY Modify System Configuration Use alternative Asset types Control Key Processes Introduce Condition Monitoring Enhance Maintenance Improve Operational Plans DESIGN for RELIABILITY Modify System Configuration Use alternative Asset types Control Key Processes Introduce Condition Monitoring Enhance Maintenance Improve Operational Plans System Diagrams FMS / TRUST Data Reliability Data Hdbk Route FMECA (Tech. & Ops) Design for Reliability Cause & Effect Workshops: Engineering Maintenance Operations TRAIL Model: Options Evaluation