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Thornlie Line Extension

PostPosted: Mon Aug 21, 2017 2:45 pm
by Mr OC Benz
This is the thread for discussion specific to the Thornlie rail extension. For general Metronet policy discussion, please use the existing thread.

A project overview document has been released on the PTA's Project webpage. Key elements are:
- 17.5km extension of Thornlie Line from Thornlie to Cockburn Central
- Two new stations at Nicholson Road and Ranford Road
- 3-kilometre duplication of track between Beckenham and Thornlie
- 14.5 kilometre extension to connect Thornlie and Cockburn Central stations
- Significant modifications to Thornlie Station to convert to through-station and accommodate six-car trains
- additional platform and significant track work at Cockburn Central to independently service the extension without impacting existing Mandurah Line services
- Will become an important transport interchange hub, reducing demand at Murdoch Station.
- Explore value capture opportunities in the area.

Expected journey times:
Nicholson Road to Perth: 25-27 mins | Nicholson Road to Cockburn Central: 9 mins
Ranford Road to Perth: 28-30 mins | Ranford Road to Cockburn Central: 6 mins

Predicted boardings at the two stations in 2021: 3,120
Predicted boardings at the two stations in 2031: 4,352

Potential for an additional two million service kilometres and up to 20 new buses in the area to support the extension. At this stage, almost all bus services which connect with Murdoch Station to be retained.

Project Definition Plan expected to be completed by early 2018. Four year period to opening. A new dedicated METRONET website will be available in late 2017.
Thornlie Line Extension.png
Thornlie Line Extension.png (109.36 KiB) Viewed 10362 times

Re: Thornlie Line Extension

PostPosted: Thu Nov 30, 2017 4:51 pm
by TP1462 ... pen-tender

Brief Description of Works: The project includes the design and construction of Karel Avenue Upgrades from Farrington Road to Berrigan Drive, including widening of the bridge over Roe Highway, a 2-lane dog bone roundabout arrangement for on and off ramps and upgrades to the freight rail bridge to accommodate the future Metronet line.

Pre-qualification Required: Roadworks R3 or higher, Bridgeworks B3 or higher and a financial rating of at least F25.

“The Code for the Tendering and Performance of Building Work 2016 (Building Code) applies to the building work associated with this project. By submitting an expression of interest in, or tender for, this project, you will become subject to the Code for the Tendering and Performance of Building Work 2016. Refer to the Building Code at for further information.”

“It is a requirement of this project that any persons contracted to undertake the building work be accredited under the Australian Government Building and Construction WHS Accreditation Scheme established by the Building and Construction (Improving Productivity) Act 2016, at the time of entering into the contract for the building work and while the building work is being carried out.

Tenderers intending to submit a bid as a Joint Venture must review the additional requirements as outlined by Section 26(1)(f) of the Fair Work (Building Industry – Accreditation Scheme) Regulations 2016 by the Federal Safety Commission (located at”

Re: Thornlie Line Extension

PostPosted: Sat Jan 27, 2018 12:22 am
In regards to the Thornlie to Cockburn rail extension, I was considering if this could coincide with the current "W" pattern services on the Mandurah line, which terminate at Cockburn, becoming "K" pattern services and extending to Rockingham. There is currently only one train per weekday operating to this pattern. This could save a lot of layover congestion at Cockburn and provide more frequent weekday rail services to the growing areas between Cockburn and Rockingham.

Re: Thornlie Line Extension

PostPosted: Sat Jan 27, 2018 9:09 am
by Mr OC Benz
Layover congestion won’t be any worse than it is now at Cockburn given the Thornlie Line would be operated independently with its own track and platform and not rely on existing Mandurah Line tracks/platforms. Exception to this is special event trains from Mandurah which could run direct to Perth Stadium via Thornlie.

Re: Thornlie Line Extension

PostPosted: Sat Jan 27, 2018 1:33 pm
by bullswool
The key question for me is will the Thornlie Line service continue to run every 15 minutes in peak, or will it finally run every 10?

Re: Thornlie Line Extension

PostPosted: Tue Jul 03, 2018 1:40 pm
by TP1462

Re: Thornlie Line Extension

PostPosted: Tue Nov 19, 2019 4:00 pm
by TP1462
The METROCONNEX consortium (Acciona, Aurecon, Clougj, Georgiou & WSP) has strongly been rumoured to have won the contract to build the Yanchep & Thornlie extensions with a major announcement from Minister Saffioti expected tomorrow

Re: Thornlie Line Extension

PostPosted: Sun Nov 24, 2019 8:21 pm
by Bus Suggestions
NEWest (CPB Contractors & Downer EDi) have officially won the contracts for the Thornlie-Cockburn Link & the Yanchep Rail Extension, announced at an event today to mark the start of construction on the Yanchep Rail Extension.
METRONET Website wrote:NEWest Alliance to build two METRONET projects
23 November 2019

The preferred alliance to construct both the Yanchep Rail Extension and Thornlie-Cockburn Link is NEWest Alliance.

The announcement was made at an event to mark the start of early works for the Yanchep Rail Extension.
Made up of CPB Contractors and Downer EDI, NEWest Alliance will work closely with the Public Transport Authority to progress the designs and construction schedule once the contract is signed next month.

Together the projects are set to create 3000 jobs and once operational will give residents of the northern and eastern suburbs greater access to employment and training, entertainment and recreation hubs.

The Yanchep Rail Extension will add 14.5km to the existing Joondalup Line, with stations at Alkimos, Eglinton and Yanchep. With early works already underway, construction will commence next year, and the first trains are expected to be running in 2022.

The Thornlie-Cockburn Link will close a 14.5km gap in the eastern rail corridor by linking communities between the Mandurah and Armadale lines. Stations will be built at Ranford Road and Nicholson Road in Canning Vale, and significant upgrades made to both Thornlie and Cockburn Central stations. Early works on the project will begin later this year.

For more information visit the Yanchep Rail Extension or Thornlie-Cockburn Link project pages.

Re: Thornlie Line Extension

PostPosted: Sun Nov 24, 2019 10:06 pm
by TP1462

Few artists impressions of Alkimos & Yanchep stations. Yanchep station has a 3 platform terminus

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Re: Thornlie Line Extension

PostPosted: Sun Nov 24, 2019 11:36 pm
by Squiddy
TP1462 wrote:Yanchep station has a 3 platform terminus

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Got a source for it having three platforms other than the artist's impression? Have seen conflicting information on this, such as this fact sheet (admittedly, issued well over a year ago) which says there will only be two: ... 3zGLMRgxeU

Re: Thornlie Line Extension

PostPosted: Sun Nov 24, 2019 11:55 pm
by Mr OC Benz
The Project Definition Plan states the ultimate design for Yanchep is for three platform faces to provide for operational efficiency and to handle expected patronage growth. There will definitely be two platform faces from day 1 but whether the third is also built at the same time remains to be seen. Not necessarily required from day 1.

There is also reference to a three platform face design for Alkimos but this is even less likely from day 1 but potentially necessary future proofing to accommodate a future East Wanneroo Line branching north of Clarkson.

Re: Thornlie Line Extension

PostPosted: Mon Nov 25, 2019 11:51 am
by TP1462

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