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Metro Tunnel

Proposed Tunnels And Stations Planning Scheme Amendment (GC82)

Cross Yarra Partnership, the appointed Tunnels and Stations contractor, has identified refinements to the design and construction of the tunnels and stations which will improve accessibility, reduce construction impacts and provide better outcomes for the delivery and operation of the Metro Tunnel.

The Environment Effects Statement anticipated that the appointed contractor would build on and refine the Concept Design, and a performance-based approach was adopted to ensure flexibility in delivery while still meeting key requirements.

The refinements have undergone rigorous review as part of an Environment Risk and Impact Assessment to ensure the best outcomes for the Metro Tunnel Project and the community.

The design and construction changes include:

Draft documentation

A Planning Scheme Amendment (PSA) is required for these changes. Changes are also required to the Design and Development Overlay (DDO) to incorporate the design refinements to protect the tunnels and stations from future nearby developments.

Between Monday 19 March to Tuesday 17 April 2018 we sought public feedback on this draft documentation.

Draft Planning Scheme Amendment documentation

DDO maps for planning schemes

Design and construction changes

Trinocular station design and minor changes to tunnel alignment

To better respond to the unique ground conditions in the CBD, and to provide more spacious and accessible station platforms, CYP has proposed an innovative trinocular design for the State Library and Town Hall stations.

A trinocular design combines three overlapping tunnels that integrate the concourse and platforms on a single level to create a wide, central tunnel space, improved passenger circulation and vertical transportation.

To accommodate the trinocular station design and improve operational performance, there will be minor changes to the alignment of the tunnels between Parkville and and Town Hall stations.

Underground support structures

Underground support structures are proposed to be used at Parkville Station, State Library Station and Town Hall Station to provide a safer construction area for excavation works and enable more efficient construction techniques to be used.

Underground support structures are structural elements that are used to stabilise the shafts, station boxes and tunnels and include:

  • rock bolts of varying lengths that will be used predominantly along the rail tunnels
  • rock anchors that can be used to support shafts at the stations.

Passenger connection from Town Hall Station to Flinders Street Station via Campbell Arcade

The existing Campbell Arcade is the proposed location of an underground pedestrian connection between Flinders Street Station and the new Town Hall Station.

The proposed connection minimises impacts to heritage aspects of the main Flinders Street Station building that would have occurred under the Metro Tunnel Environment Effects Statement Concept Design and delivers an enhanced outcome for passengers by reducing crowding on the Flinders Street Station concourse, and taking passengers directly to platforms at the station.

The portion of Campbell Arcade underneath the Flinders Street roadway is already part of the Project Land and is not subject to the draft Planning Scheme Amendment. All necessary planning and heritage approvals will be obtained before construction of the underground connection begins.

Subject to relevant approvals, major work within Campbell Arcade is not expected to start until mid-2019, after all the current tenancy leases with City of Melbourne have expired.

Additional road works

Temporary traffic management measurements are proposed on the following roads to support construction of the new tunnels and stations:

  • Arden Street – between Fogarty Street and Dryburgh Street
  • Royal Parade – south of Storey Street to Genetics Lane
  • Grattan Street – between Bouverie Street and Swanston Street
  • Cardigan Street – between Victoria Street and Earl Street
  • Flinders Street – between Queen Street and Elizabeth Street
  • Flinders Lane – between Elizabeth Street and Swanston Street, and between Swanston Street and Russell Street

These measures will typically involve signage, line marking and small kerb adjustments to provide a safer environment for cyclists, pedestrians and motorists during construction.

Permanent road works are proposed for parts of the following roads to improve the public realm as part of the project:

  • Royal Parade
  • Flinders Street
  • Flinders Lane

These works include footpath resurfacing, landscaping, adjustments to bus stops and new pedestrian and cyclist crossings.

These works also include an extension of the tram route from Elizabeth Street onto Flinders Street via new tram tracks. This will:

  • allow trams 19, 57 and 59 to integrate into the current tram network along Flinders Street
  • reduce delays currently experienced on the network due to trams terminating at the Elizabeth Street/Flinders Lane tram stop
  • enhance capacity to and from the sports precinct centred on the MCG and Melbourne Park.