THE GLENFIELD TO LEPPINGTON RAIL LINK

David Putley, Principal Engineering Manager Services, Transport for NSW David Polkinghorne, Design Manager, John Holland

Challenges and Solutions

The challenges and solutions to facilitate growth in south-west Sydney with NSW's newest railway infrastructure.

Agenda

• Project requirements • Key elements • Design solutions • Approvals and changes • Construction solutions • Case studies • Engineer requirements • Conclusion

Presenters The two Davids

David Putley Transport for NSW • 35 years railway project management & civil engineering • Client and supply

David Polkinghorne John Holland • 35 years contractor D&C experience

We’re on the map!

Why GLRL?

• Provide sustainable development for the wider South West Growth Centre

• Provide direct transport link to/from the city • Improve services through congestion relief

and extra capacity for the south west region

• Minimise environmental impacts

What is GLRL?

• Rural location • 12 km track • Two stations • One stabling yard (20

trains) • 14 bridges plus culverts • Hume Highway • Deep cuttings • High embankments • Electrical substations

Project requirements

• Reference design • Environmental Assessment • Land purchases • Ministerial conditions • RailCorp standards and TPD Works Brief • Design and construction contract • Systems engineering and assurance

Key challenges

• Route is sinuous • Through open paddocks • Stakeholders • Safety in design • Drainage and flooding • Rail systems • Rail and NSW

experience • Design changes

Concept Design fly through

Concept Design fly through

John Holland design partners

Keys to Success

• Safety – starts in design – continues through integration of the design &

approvals – into construction, use and maintenance – Safety In Design monthly awards – JH National Group Award for 2012

• Systems Assurance – Through all stages of design, construction &

verification

Hume Highway Underpass

• RMS requirements • Two x four lane highway with 15m median • 79.5m in length • RailCorp requirements • Two tracks, walkway and refuges • Geology • Design and construction

Engineering as good news

Engineering as good news

Hume Highway X-Section

Median works January 2012

Canopy tubes and steel sets

In we go!

Safety first

Monitoring

Nearing completion

13m deep cutting

Higher perspective

No interruption to the Hume Highway

Cowpasture Road Viaduct

• Tiered retaining wall • JH change proposal

– 485m long; – 12m above ground; – 1:40 incline

• Change process and business case

Original tiered embankment

Spot the difference!

Getting started

Groundworks

Safety and temporary works

Super T’s

Don’t forget the service routes

http://www.johnholland.com.au/index.asp

http://www.johnholland.com.au/index.asp

Civil or multi-discipline requirements?

• Integrated designs – Signal sighting

• Stations • Buildings and

structures • Cut and fill (1 million

m3) • CSR & Rail Systems

• Stabling Yard • Flood management • Durability • Utility interfaces • Community • Urban design

Edmondson Park Station

Leppington Station

Leppington Station

Leppington Station

Stabling Yard

Don’t forget the service routes!

This is the way!

Creeks and culverts

Don’t forget the drainage!

A hive of activity and progress

Eastwood Road

Engineer requirements

Engineers must: • Focus upon safety into the design • Meet the requirements • Appreciate impact to others

– external – internal to project

• Value the community • Leave a great legacy

Conclusion

GLRL is a great project to be working on • Huge contribution by many • Innovative ways to work • Multi-discipline engineering • Railway systems understanding • Any changes to be business case based • Delight the customer

QUESTIONS Please clearly state your name and affiliation