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Traffic & Transportation

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 all transportation infrastructure and services in the study area, including roadways, intersections, highway interchanges, transit routes, cycling lanes, sidewalks and multi-use paths.  
  • Assess available traffic, cyclist and pedestrian count data.  
  • Simulation modelling of the corridor to assess intersection operating conditions and auto and transit bus travel times.  
  • Identify traffic bottlenecks, poor intersection performance, transit delay points and other impacts to transportation and traffic operations.  
  • Testing, modelling and recommendation of mitigation measures to improve performance.  

Existing Environmental Conditions

Toronto 

  • Within Toronto, Dundas Street has a six-lane cross-section with a centre two-way left-turn lane providing access to many side streets and private driveways. The curbside traffic lane is designated as a high occupancy vehicle lane in both directions, permitting only transit vehicles, taxis and personal vehicles with occupancy of three persons or more for designated time periods.  
  • Sidewalks are provided on either side of Dundas Street, with no dedicated cycling facilities provided.  
  • Generally heavier volumes during the afternoon peak hours as compared to those in the morning peak hours. The largest directional traffic volumes along Dundas Street are 1,900 vehicles in the morning peak hour and 2,100 vehicles in the afternoon peak hour.  
  • All intersections with major arterial roads operate at acceptable levels of service in both the morning and afternoon peak hours.  
  • In both the morning and afternoon peak hours, the most congestion occurs at intersections near the Highway 427 interchange and near Kipling Transit Hub due to high volumes of local buses accessing the terminal.  

Vehicular traffic travelling westbound on Dundas Street at The Credit Woodlands intersection in MississaugaVehicular traffic travelling westbound on Dundas Street at The Credit Woodlands intersection in Mississauga.
Source: AECOM, 2021.

Mississauga East

  • Within the Mississauga East corridor, Dundas Street varies between six-lane and four-lane cross-sections, and in many locations a centre two-way left-turn lane is present. A curbside high occupancy vehicle traffic lane is provided between Dixie Road and the Etobicoke Creek.  
  • Continuous sidewalks are provided on both sides of Dundas Street within Mississauga East, with no dedicated cycling facilities provided.  
  • Generally heavier volumes during the afternoon peak hours as compared to those in the morning peak hours. The largest directional traffic volumes along Dundas Street are 1,800 vehicles in the morning peak hour and 2,200 vehicles in the afternoon peak hour.  
  • Most intersections operate at acceptable levels of service in both the morning and afternoon peak hours.  
  • However, in both the morning and afternoon peak hours, congestion occurs in Cooksville near the Hurontario Street intersection. Other intersections with major arterial roadways, like at Dixie Road, operate with poor levels of service in the peak hours. 

Vehicular traffic travelling westbound on Dundas Street at the Dixie Road intersection in Mississauga. Vehicular traffic travelling westbound on Dundas Street at the Dixie Road intersection in Mississauga.
Source: AECOM, 2021.

Mississauga West

  • Within the Mississauga West corridor, Dundas Street varies between six-lane and four-lane cross-sections, and in many locations a centre two-way left-turn lane is present.  
  • Continuous sidewalks are provided on both sides of Dundas Street within Mississauga West, with no dedicated cycling facilities provided.  
  • The largest directional traffic volumes along Dundas Street are 3,000 vehicles in the morning peak hour and 2,100 vehicles in the afternoon peak hour.  
  • Most intersections operate at acceptable levels of service in both the morning and afternoon peak hours.  
  • In both the morning and afternoon peak hours, the most congestion occurs west of Winston Churchill Boulevard. Other intersections with major arterial roadways (Mavis Road, Winston Churchill Boulevard, and Erin Mills Parkway) operate with poor levels of service in the peak hours.  

Vehicular traffic travelling westbound on Dundas Street at The Credit Woodlands intersection in MississaugaVehicular traffic travelling westbound on Dundas Street at The Credit Woodlands intersection in Mississauga.
Source: AECOM, 2021.

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