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Panel Theme: Tailoring Systems Engineering to Transit – Optimising In-Service Systems. Tailoring Systems Engineering to Transit - Optimising In-Service Systems. Panel Moderator: Kuldeep Gharatya - London Underground Challenge: How to optimise systems while they are in daily use by millions

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Presentation Transcript
slide1

Panel Theme:

Tailoring Systems Engineering to Transit

– Optimising In-Service Systems

Presented to the INCOSE 2008 Symposium page 1

tailoring systems engineering to transit optimising in service systems
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Panel Moderator:

Kuldeep Gharatya - London Underground

Challenge:

How to optimise systems while they are in daily use by millions

Panel Speakers:

Larry Fawkner – UK, Cogitare

Giles Thomas – UK, Network Rail

Lori Colangelo – USA, NYCT

Bruce Elliot – UK, Arbutus

Presented to the INCOSE 2008 Symposium page 2

tailoring systems engineering to transit optimising in service systems1
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Train system and energy optimisation for metros

Larry [email protected]

Presented to the INCOSE 2008 Symposium page 3

contents
Contents
  • LU optimisation achievements
    • Reduced energy and costs
  • What is optimisation
  • How to optimise
  • Optimisation benefits
  • Optimisation applications

Presented to the INCOSE 2008 Symposium page 4

victoria line upgrade
Victoria Line Upgrade

Northumberland Park Depot

  • 16 stations
  • 23 km long
  • 180m Journeys p.a.
  • 18% Demand increase by 2025

Blackhorse Road

WalthamstowCentral

Seven Sisters

Tottenham

Hale

Finsbury Park

JNP

Kings Cross

Highbury &Islington

SSL

Euston

JNP

Warren Street

Oxford Circus

Performance improvements

Increased Capacity to cope with rising demand

  • Peak hour capacity +19%
  • Overall capacity +35%
  • Improvement in JourneyTime Capability (JTC) +16%

Green Park

JNP

Victoria

Pimlico

Vauxhall

Stockwell

JNP

Brixton

Presented to the INCOSE 2008 Symposium page 5

gains through optimisation
Gains through Optimisation

Presented to the INCOSE 2008 Symposium page 6

gains through optimisation1
Gains through Optimisation

Presented to the INCOSE 2008 Symposium page 7

the secret to optimisation
The Secret to Optimisation
  • Typically 80% of life cycle costs are determined by the conceptual design
  • Develop an optimised conceptual design through whole life cost-benefit analysis supported by modelling and simulation

Presented to the INCOSE 2008 Symposium page 8

what is optimisation
What is optimisation?
  • Maximising system whole life benefits to society (or revenues for private sector) relative to whole life costs including energy
    • Evaluation of system as a whole
    • Marriage of systems engineering with economics
    • Optimisation of trade-offs

Presented to the INCOSE 2008 Symposium page 9

trade offs to optimise
Trade-offs to optimise

What is the best

combination?

Costs

Energy

Tunnel Cooling

Power Supply

Trains

Track

Signalling & Control

Service frequency

Benefits

Time

Reliability

Heat (dis-benefit)

Comfort

Ride

Presented to the INCOSE 2008 Symposium page 10

slide11

Systems Optimisation Process (SOP)

Optimized

‘Conceptual Solution’

Options & Inputs

Analysis

Presented to the INCOSE 2008 Symposium page 11

optimisation benefits
Optimisation benefits
  • Saves money and improves performance
    • Optimised public transport = cheaper and better = get people out of their cars
  • Resolves differences of opinion (“2 engineers, 2 points of view”)
    • The answer’s in the cash flow!
  • Justifies change
  • Helps contractual partnerships
    • Enables a “win win” outcome

Presented to the INCOSE 2008 Symposium page 12

optimisation applications
Optimisation applications
  • Optimise system conceptual design
  • Trade off user requirements to determine what is best for Society / a company
  • Value management of supply chain
    • Use modelling and simulation process to
      • Determine scope and data for tenders
      • Compare supplier offers
      • Validation and Verification of delivery (payment to suppliers can be dependent on this!)

Presented to the INCOSE 2008 Symposium page 13

the thameslink challenge

Eastbourne, etc

Eastbourne, etc

Eastbourne, etc

Kings Lynn

Kings Lynn

Kings Lynn

East Croydon

East Croydon

East Croydon

8

8

8

6

6

6

Brighton

Brighton

Brighton

4

4

4

Welwyn

Welwyn

Welwyn

12

12

12

4

4

4

London Brg

London Brg

London Brg

Peterborough

Peterborough

Peterborough

Dartford

Dartford

Dartford

10

10

10

St. Pancras TLK

St. Pancras TLK

St. Pancras TLK

City TLK

City TLK

City TLK

6

6

6

18

18

18

24

24

24

14

14

14

Wimbledon

Wimbledon

Wimbledon

Farringdon

Farringdon

Farringdon

Blackfriars

Blackfriars

Blackfriars

12

12

12

2

2

2

Elpht & Cstle

Elpht & Cstle

Elpht & Cstle

6

6

6

St. Albans

St. Albans

St. Albans

Bedford

Bedford

Bedford

Guildford

Guildford

Guildford

2

2

2

2

2

2

6

6

6

Trains per hour in each direction

Trains per hour in each direction

Trains per hour in each direction

Sevenoaks

Sevenoaks

Sevenoaks

The Thameslink challenge

Presented to the INCOSE 2008 Symposium page 15

uk railway system environment
UK Railway System environment
  • Complex railway service delivery structure
    • Service specification, procurement and regulation.
    • Franchised Train Operators
    • Rolling Stock Leasing Companies
    • Infrastructure Manager
  • Wider
    • Customer focus – security, accessibility, …
    • Sustainability – weight, energy consumption…

Presented to the INCOSE 2008 Symposium page 16

thameslink system vision
Thameslink System vision
  • Low Carbon footprint
  • Vehicle gauge
  • Track friendly
  • Optimised for routes
  • High system reliability
  • ETCS
  • ATO
  • DOO
  • SDO
  • Optimised for dwell time
  • Accessible to all
  • Safe and secure
  • High capacity

Presented to the INCOSE 2008 Symposium page 17

thameslink system modelling

Train Presentation at St Pancras (April, 2008)

20

15

No. of Trains

10

5

0

0.5

2.5

3.5

4.5

5.5

7.5

8.5

-2.5

-0.5

14.5

Arrival Lateness (mins)

Thameslink System modelling

24tph

Presented to the INCOSE 2008 Symposium page 18

status and future themes
Status and future themes
  • Developed models
    • Traction and signalling performance
    • Reliability and timetable performance
  • Developing models
    • Dwell time management
    • Human factors
  • Future models
    • Less data hungry
    • Faster system level option development

Presented to the INCOSE 2008 Symposium page 19

tailoring systems engineering to transit optimising in service systems2
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Optimizing System Requirements

at New York City Transit (NYCT)

[email protected]

Presented to the INCOSE 2008 Symposium page 20

slide21
In-service system
  • Operates 24 hours a day – 7 days a week
  • 656 Track Miles
  • 468 Stations
  • 26 Subway Lines
  • 6500 scheduled trains each weekday
  • Peak Service; 540 trains

Presented to the INCOSE 2008 Symposium page 21

migration from field operation
Migration from Field Operation
  • Signal Modernization Program
  • Systematically upgrading existing rail lines
  • B Division controlled from the field

Presented to the INCOSE 2008 Symposium page 22

nyct rail control center
NYCT Rail Control Center

Centralized operation

A Division operated from the RCC

Sustain an existing transit system while upgrading to a newer technology

Presented to the INCOSE 2008 Symposium page 23

upgrade of b division operation
Upgrade of B DivisionOperation
  • Tailored User Requirements Capture Process
    • Performed 76 User Interviews
    • Derived requirements based on Interviews
    • Established ownership of requirements
    • Talked to the end-user in their work environment
    • Observed Normal and Abnormal Operations

Presented to the INCOSE 2008 Symposium page 24

benefits of tailoring the process
Benefits of Tailoring the Process
  • Buy-in by users;
  • Better understanding of agency needs
  • Automate processes
  • Justification for all Specification Requirements
  • Cost savings

Presented to the INCOSE 2008 Symposium page 25

tailoring systems engineering to transit optimising in service systems3
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Systems Engineering on In-Service Systems

Bruce Elliott

[email protected]

Presented to the INCOSE 2008 Symposium page 26

motivation
Motivation

Presented to the INCOSE 2008 Symposium page 27

allies
Allies
  • The INCOSE UK Advisory Board recommended to the Chapter that it should address this issue
  • Bruce Elliott (Rail) and Stewart Leinster-Evans (Military Aerospace) facilitated a workshop at the UK Autumn Industry which concluded that:
    • Different sectors share a common view
    • The principles of SE remain applicable to the in-service phase but
    • There is a need for modified guidance for the particular problems of this phases
  • Bruce Elliott convened a UK working group to advise on:
    • The difficulties encountered in practice in applying authoritative guidance on SE to systems which are in service
    • Best current practice in adapting SE guidance to overcome these difficulties
    • Additional work that would assist further in overcoming these difficulties

Presented to the INCOSE 2008 Symposium page 28

a rail scenario
Replace all switches and crossing within the blue lines

To current standards

Unless otherwise agreed

All work to be completed within a 54 hour period

This is a systems problem!

A Rail Scenario

Presented to the INCOSE 2008 Symposium page 29

process
Process
  • Collect a set of typical in-service SE scenarios
    • See next slide
  • Create a simple map of SE
    • Across the W lifecycle
    • See slide after next
  • Review the INCOSE SE Handbook V3.1 to identify gaps between what is wanted and what is provided

Presented to the INCOSE 2008 Symposium page 30

map of se
Map of SE

Presented to the INCOSE 2008 Symposium page 31

slide32

“Domain Knowledge”

Modifying Architectures

Incremental Migration

When to start a change

Maintaining info through life

CM Handover

Gaps

Presented to the INCOSE 2008 Symposium page 32

conclusions
Conclusions
  • The SE Handbook is a great place to start for in-service SE
  • But some tailoring in specific areas would optimise it for the in-service phase
  • Rail/transit would be a major beneficiary of such work
    • But not the only one
  • The UK In-Service SE Working Group intends to continue work in this area
  • Involvement from others is welcome

Presented to the INCOSE 2008 Symposium page 33

tailoring systems engineering to transit optimising in service systems4
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Panel Moderator:

Kuldeep Gharatya - London Underground

Challenge:

How to optimise systems while they are in daily use by millions

Panel Speakers:

Larry Fawkner >Train system and energy optimisation for metro

Giles Thomas > Developing Thameslink….24tph

Lori Colangelo > Optimising System Requirements at NYCT

Bruce Elliot > Systems Engineering on In-Service Systems

Presented to the INCOSE 2008 Symposium page 34

tailoring systems engineering to transit optimising in service systems5
Tailoring Systems Engineering to Transit - Optimising In-Service Systems

Moderator’s Concluding Remarks

  • Greenfield sites are very rare.
  • This is a huge challenge in a multi-stakeholder environment.
  • Optimise before and during design.
  • INCOSE support area.

Presented to the INCOSE 2008 Symposium page 35

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