Upload
crosstownto
View
2.902
Download
4
Embed Size (px)
DESCRIPTION
This consultation will cover preliminary station and stop designs from Avenue Road to Bayview, as well as information on the future construction of a tunnel boring machine launch shaft that will be located east of Brentcliffe Road. Find out more at:
Citation preview
1
Open HouseAvenue Road to Bayview Avenue
2
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
3
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.
4
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.
5
The TBM is carefully aligned with the eye of the tunnel. The machine will break through this focal point to start excavation.
Eye of the tunnel
6
Preparing the site
Workers lay track during the assembly and launch phase
The pieces of the TBMs are lowered into the shaft and assembled
7
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 operation; muck will be hauled out and new concrete tunnel segments will be delivered.
8
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 Tunnelling Canada Corporation, formerly LOVAT, a world leader in tunnel boring machine manufacturing.
9
East Tunnels Launch Shaft
To Brentcliffe To Leslie
10
Emergency Exit Buildings and Cross Passages
11
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
Crosstown Principles of Design Excellence
12
A coherent and unified architectural strategy for the
entire Crosstown line
1. A Strong Conceptual Narrative Vision across the System
Clear strategy for consistent and variable
elements
13
Openness through optimal spatial penetration
2. Design that Elevates the Quality of the Public Transit Experience
Optimized daylight penetration
14
Unified ground plane inside and outside stations and at stops
3. Civic Calibre and Scale of Built Form and Materials
Civic materials and character of open spaces
15
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
16
Integration with historic elements
5. Responsiveness to Contextual, Local and future Conditions
Sustainability measures
17
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
Crosstown Accessible Features: Stations
18
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
Crosstown Accessibility Features: Stops
19
Avenue StationLocal Context: Demand
20
Avenue Road Local Context: Land Use
21
Avenue RoadSecondary Entrance
22
Avenue RoadLongitudinal Section
23
Eglinton StationLongitudinal Section through LRT and Eglinton
24
Eglinton StationLongitudinal Section through Subway and Yonge Street
25
Eglinton StationStreet Level
26
Eglinton StationUpper Concourse Level Yonge
27
Mount Pleasant StationLocal Context: Demand
28
Mount Pleasant StationLocal Context: Land Use
29
Mount Pleasant StationProfile View
30
Mount Pleasant StationPlan View
Possible future entrance
31
Mount Pleasant StationPreliminary Station Concept
32
Mount Pleasant StationLongitudinal Section
Eglinton Avenue
Mount Pleasant
33
Mount Pleasant StationPrimary Entrance
34
Mount Pleasant StationSecondary Entrance
35
Bayview StationLocal Context: Demand
36
Bayview StationLocal Context: Land Use
37
Bayview StationLongitudinal Section
38
Bayview StationPrimary Entrance
39
Bayview StationSecondary Entrance
40
New Approach:Alternative Financing and Procurement (AFP)
Public Private Partnership models have been underway in Canada for 20 years165 projects21 transportation projects$51 billion total project valueCanada-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
41
Owner’s Role Changes with AFP
42
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
43
New Approach:Roles and Responsibilities in the Design Build Finance Maintain model
Metrolinx Role Design
• Overall scope (inclusion of maintenance, operations, 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
competetive prcurement 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