5. Evaluation of Alternatives

Evaluation of Alternatives

  • The criteria outlined in the following table have been used to evaluate alternatives
  • A Reasoned Argument (trade-off) method of evaluation was used to identify the advantages and disadvantages in order to select the preferred alternatives
  • Alternatives were evaluated based on their ability to address future capacity and operational issues; improve safety conditions; address future rehabilitation needs, and minimize impacts to the natural, social, economic, and cultural environment
  • Highway 6/York Rd Interchange Evaluation Criteria included the feasibility of accommodating a Carpool Lot

Evaluation of Alternatives - Criteria

Evaluation Component ​


Natural Environment​

  • Fish and Fish Habitat​

  • Terrestrial Ecosystems (vegetation, wildlife, wetlands, etc.)​

  • Designated Natural Area (ANSI/PSW etc.)​

  • Groundwater

  • Species at Risk​

  • Surface Water

Socio-Economic Environment​

  • Aesthetics​

  • Noise​

  • Air Quality​

  • Community Effects (residential, commercial, institutional, Property Impacts etc.)​

  • Agricultural Operations​

  • Commercial/ Industrial Operations ​

  • Approved Plans & Policies 

  • Contaminated Properties & Waste Management

Cultural Environment​

  • Archeological Resources​

  •  Built Heritage and Cultural Landscapes​

  • Indigenous Lands

Transportation, Engineering and Cost​

  • Traffic Operations & Safety​

  • Construction Staging ​

  • Utilities ​

  • Excess Materials (more, less equivalent) ​

  • Cost (construction cost)



Evaluation of Alternatives

  • At the onset of this study, a numbering system was produced for the initial long list of alternatives generated.
  • For consistency, the numbering system is maintained for the shortlisted alternatives (as presented at PIC #1) considered throughout the study.
  • The following displays provide a summary of the evaluation of alternatives and the selected preferred alternatives