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Climate Change & Sustainability

Study Method

The purpose of the environmental studies are to:  

  • Establish existing (baseline) conditions;  
  • Identify and characterize existing features;  
  • Complete impact assessments; and  
  • Develop measures to avoid, minimize or mitigate potential negative effects.  

Methods undertaken to complete these studies include the following: 

  • Review background information.  
  • Determine the effects of the project on climate change by completing a greenhouse gas inventory of existing conditions and the result of implementing the project (including construction, operation and maintenance).  
  • Determine the effects of climate change on the project by completing a Climate Change Risk Assessment based on the International Organization for Standardization 31000 Risk Management Standard.  
  • Highlight Metrolinx’s current and planned sustainability initiatives in relation to project construction and operation, with the goal of improving environmental and social outcomes.  
  • Prepare a Climate Change and Sustainability Report.

Existing Environmental Conditions

Toronto 

  • A Greenhouse Gas Inventory is being developed that incorporates the emissions during construction and operations and will include the resulting mode shift as a result of the entire Dundas BRT. 
  • Within Toronto, Dundas Street is subjected to riverine flooding at Etobicoke Creek, which will be included in the Risk Assessment. 
  • The application of Metrolinx’s broader sustainability initiatives currently underway will be included in the design, construction and operation of the Dundas BRT with the goal of improving environmental and social outcomes. In addition, recommendations will be made to reduce greenhouse gas emissions along the corridor. 

Vehicular traffic travelling eastbound on Dundas Street at the Aukland Road intersection in TorontoVehicular traffic travelling eastbound on Dundas Street at the Aukland Road intersection in Toronto.
Source: AECOM, 2021

Mississauga East

  • A Greenhouse Gas Inventory is being developed that incorporates the emissions during construction and operations and will include any changes as a result of the Dundas BRT.  
  • Dundas Street is subjected to riverine flooding, which will be included in the Risk Assessment. In Mississauga East, the major area of riverine flooding is at Etobicoke Creek.  
  • The application of Metrolinx’s broader sustainability initiatives currently underway will be included in the design, construction and operation of the Dundas BRT with the goal of improving environmental and social outcomes. In addition, recommendations will be made to reduce greenhouse gas emissions along the corridor. 

Mississauga West

  • A Greenhouse Gas Inventory is being developed that incorporates the emissions during construction and operations and will include any changes as a result of the Dundas BRT.  
  • Dundas Street is subjected to riverine flooding, which will be included in the Risk Assessment. For Mississauga West, the major areas of riverine flooding are at the Credit River.  
  • The application of Metrolinx’s broader sustainability initiatives currently underway will be included in the design, construction and operation of the Dundas BRT with the goal of improving environmental and social outcomes. In addition, recommendations will be made to reduce greenhouse gas emissions along the corridor.  

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