Systems Analysis
Background The Challenge
Following a period of decline in railway Increasing budgetary constraints mean Journey Time Analysis & Capacity utilisation in many regions across the that governments and infrastructure Layout & Signalling Performance globe, development, population growth, owners are seeking cost effective energy demands and environmental solutions to meet the challenges System Workload / Duty Cycle / concerns have stimulated a renaissance of the demand for a 24/7 railway Tonnage Analysis in the railway as a central engine in service through longer trains and/or Function Level Configuration and the delivery of any economy. This has increased train frequencies, increased Functional Evaluation encouraged the need to run more system reliability and availability with services whilst achieving increased reduced or no impact on train service Formal Reliability Engineering levels of reliability at reduced whole performance. Railway Performance and Whole Life life cost. To meet these demands, the Cost Analysis railway has had to evolve; becoming How We Can Help more precise, operating at tighter Formal Safety Assessment and margins, whilst being more adaptable Systems Analysis provides the Systems Integration mechanism for developing appropriate to meet changing customer needs. The In-service Analysis and Reliability evidence to inform key decisions requirement to run more services makes Growth Planning access to the equipment for repairs An array of analysis methods can be and maintenance increasingly difficult, deployed ranging from static analysis, DRACAS & Reliability Growth further compounding traditional efforts dynamic simulation and increasingly Management through the deployment of formal to improve reliability. Therefore, a Quality Management Systems and optimisation methods. single, even minor incident affecting Supplier Quality Assurance the equipment functionality can have Systems Analysis encompasses We have a strong in-house systems immediate and significant engineering the provision of formal analysis and analysis team with significant and commercial consequences simulation modelling techniques to knowledge in the practical application for the railway. inform key decisions relating to existing of a variety of modelling tools to assess or future capabilities on the network: design or operational challenges from a range of perspectives.
For more information please visit www.networkrailconsulting.com Assessing the Railway as a System
Level Output Approaches
Railway Business Case Systems Integration (Business) Level PRAMS Demonstration Whole Life Simulation using RailSys/TRAIL Programme Trade-offs: capacity/reliability/ Whole Life Cost Evaluation cost/infrastructure/trains Programme Risk Analysis Design/Operations/Maintenance
Function System Level Availability Functional Evaluation (System) Level Trade-offs: Across functions, Within FMECA Use Case Scenarios
Business Dev Functions Project Requirements RAM Apportionment Reliability Block Diagrams Technical Readiness Requirements Availability and WLCs Baselining
Asset (Technical) Asset Class Reliability Benchmarking existing assets Level Critical Assets Index Development Programming
Technical Dev Project/Supplier Requirements Test Planning Supplier Quality Assurance Asset Level Whole Life Costs Reliability Growth Planning DRACAS
Future Railway Study The UK’s national railway industry wide traction power, AC/DC change over application of TRAIL model, headway Technical Strategy Leadership Group reliability analysis, route level Failure analysis, SPA and CUI assessment. (TSLG), commissioned Network Rail Modes, Effects and Criticality Analysis to undertake simulation analyses of (FMECA), development and application Thameslink Programme a conceptual future double capacity of TRAIL model and derivation, railway to understand the relationship apportionment and specification Performance benchmarking and between reliability, capacity and cost. of Reliability, Availability and apportionment, asset reliability Using the southern section of the West Maintainability (RAM) requirements. assessment, station dwell time analysis, Coast Main Line from London to the reliability requirements apportionment West Midlands as a conceptual railway High Speed 2 and specification, TRAIL model we developed a high capacity timetable development and support SPA of concept using RailSys and a railway Provision of strategic systems different route sections. engineering guidance on programme system reliability concept using TRAIL. Key SPA study assessing the through life management planning The models were used to assess the performance of the resignalling works inclusive of early scheme analysis impact of prevention and mitigation in the core, maintainability modelling on optimal attainable speeds for new improvement measures, and alternative and analysis. rolling stock on existing parts of the headways on performance. network, the provision of Conceptual Edinburgh Glasgow Crossrail Programme Reliability Evaluation and provision of expert guidance on reliability. Improvement Programme We carried out a wide range of General systems analysis activities, reliability and performance activities, ERTMS – Cambrian Lines including CUI assessment and including performance benchmarking, development and application of load prediction, Scheme Performance General RAM support to project TRAIL model. Assessment (SPA) and Capacity including, performance benchmarking Utilisation Indexing (CUI) analysis, and identification of performance assessment of Manual / Automatic drivers, product level FMECA, RAM Train Operation, OSLO modelling for assessment, development and
For more information please visit www.networkrailconsulting.com