East Open House Laird Drive to Wynford Drive 1 East Tunnel - - PowerPoint PPT Presentation

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East Open House Laird Drive to Wynford Drive

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East Tunnel Construction Timeline

• Contract award
• Construction of launch shaft – 1 year
• Utility relocation at headwalls
• Construction of headwalls – 6 to 8 months
• Construction of extraction shaft at Yonge Street

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Tunnel Boring Machine

• The construction of new tunnels under Eglinton Avenue is done by tunnel boring

machines (TBMs).

• Each TBM moves forward by pushing off against concrete segments.
• The operator advances the machine as soil is removed from the TBM face through

a conveyor system.

• The launch pit remains active for

removal of muck/spoils.

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Launch of the Tunnel Boring Machine

• The Eglinton Crosstown

tunnel will consist of side-by- side or twin tunnels.

• Each tunnel will be 6.75

metres internal diameter.

• Initially, one machine will

begin excavation; the other will follow on a parallel course soon after.

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Launch Shaft Operations

• To keep the tunnel safe for the crew a

ventilation system pumps fresh air into the tunnel and exhaust air is moved out of the tunnel.

• Cranes remain in position during the mining
• peration; muck will be hauled out and new

concrete tunnel segments will be delivered.

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Tunnelling Begins

• Tunnel boring machines work beneath Eglinton Avenue.
• Business activities and traffic will continue with this method.
• A single TBM will tunnel 75 metres per week.
• Each machine is capable of moving 500 cubic metres of earth per day.
• The machines are made in Toronto by Caterpillar Tunneling Canada Corporation,

formerly LOVAT, a world leader in tunnel boring machine manufacturing.

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East Tunnels Launch Shaft

 To Brentcliffe To Leslie 

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Overview: Design Excellence at Metrolinx

• Design excellence at Metrolinx

refers to the successful interplay between:

• Functionality
• Durability
• Beauty
• Value

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Crosstown Principles of Design Excellence

1. A strong conceptual narrative vision across the system 2. Design that elevates the quality of the public transit experience 3. Civic caliber and scale of built form and materials 4. Clarity and simplicity of architectural expression through integrated design of building systems and elements 5. Responsiveness to contextual, local and future conditions

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• 1. A Strong Conceptual Narrative Vision across

the System

A coherent and unified architectural strategy for the entire Crosstown line Clear strategy for consistent and variable elements

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Openness through optimal spatial penetration

• 2. Design that Elevates the Quality of the Public

Transit Experience

Optimized daylight penetration

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Unified ground plane inside and

• utside stations and at stops
• 3. Civic Calibre and Scale of Built Form and

Materials

Civic materials and character of open spaces

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Integrated structural, mechanical, and electrical systems

• 4. Clarity and Simplicity of Architectural Expression

through Integrated Building Systems and Elements

A clear hierarchy and plan for user-centred integrated information

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Integration with historic elements

• 5. Responsiveness to Contextual, Local and

future Conditions

Sustainability measures

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Crosstown Accessible Features: Stations

• Accessible path from street to platform
• Accessible routes identified
• Station attendant
• Platform edge tactile strip
• Wayfinding tiles on platforms
• Near level boarding of trains
• Platform edge illumination
• Audible messages throughout stations
• Signage with accessible features
• Designated Waiting Area
• Colour contrast between station walls and floors
• Equipment mounted at accessible heights
• Benches

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Crosstown Accessibility Features: Stops

• Platform edge tactile strip
• Platform edge illumination
• Colour contrast at between walls and platform
• Equipment mounted at accessible heights
• Sheltered benches
• Sheltered wheelchair area
• Passenger assistance intercom
• Ramp access to platforms
• Signage with accessible features

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Laird Station Local Context: Demand

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Laird Station Local Context: Land Use

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Laird Station Profile View

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Laird Station Longitudinal Section

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Laird Station Main Entrance

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Laird Station Secondary Entrance

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Brentcliffe Portal

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East Portal and Don West Bridge

East Portal Don West River Bridge

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Leslie Stop Ferrand Stop Wynford Stop Laird Station Don Mills Station

Leslie Stop Local Context: Demand

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Leslie Stop Local Context: Pedestrian Flow

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CP Rail bridge

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Don Mills Station Local Context: Demand

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Don Mills Station Local Context: Land Use

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Don Mills Station Primary Entrance

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Don Mills Station Secondary Entrance

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Don Mills Station Longitudinal Section

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Ferrand Portal

Portal

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Wynford Stop Local Context: Pedestrian Flow

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Wynford

Wynford Stop as Proposed in the RCD

Final Stop Configuration to be determined during Detail Design

Wynford Stop as Proposed in the EA

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New Approach: Alternative Financing and Procurement (AFP)

Public Private Partnership models have been underway in Canada for 20 years

• 165 projects
• 21 transportation projects
• $51 billion total project value

Canada-wide examples

• Canada Line rapid transit project (Vancouver)
• Autoroute 25 (Montréal)
• Trans-Canada Highway (Atlantic Canada)

Ontario examples

• Pan Am games athletes village
• Ottawa Light Rail Transit
• Highway 407 East Phase 1
• The Rt. Hon. Herb Gray Parkway (Formerly the Windsor Essex Parkway

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Owner’s Role Changes with AFP

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New Approach: Advantages of (AFP)

• Increased capacity to bring projects to market
• Transfer of risk
• Appropriate risks transferred to private sector to ensure “on time, on budget”

delivery and offer value for money

• Design, construction, cost escalation, schedule delays, operations, maintenance,

life cycle, financial risk

• Cost certainty
• Optimal cost combination: combines capital, maintenance and life cycle costs
• Integration of design and construction

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New Approach: Roles and Responsibilities in the Design Build Finance Maintain model

Design

• Overall scope (inclusion of maintenance,
• perations, etc.)
• Project-Specific Output Specifications

(with Consultant team)

• Real Estate Acquisition (with City of

Toronto)

Build

• Oversee Construction Phase
• Quality Assurance

Finance

• Project Budget
• With Infrastructure Ontario run a competitive

procurement process; select the winning contractor

Maintain

• Testing & Commissioning (with Toronto

Transit Commission)

• Safety Certification and Project Acceptance

TTC to operate

• Integrated with existing TTC system

Metrolinx Role: