10 Most Dangerous Intersections for Toronto Cyclists

Most cyclists know from experience that cycling in Toronto can be dangerous. We intuitively avoid certain routes or exercise additional caution. Now, there’s quantitative evidence to back up our own hunches.

Adrian Verster, a PhD student studying genomics at the University of Toronto, has analyzed 24 years of bike collision data based on 31,000 accidents involving cyclists. The GPS-tagged data comes from the city’s Toronto Traffic Safety Unit reporting between 1986 and 2010.

Adrian was motivated to crunch the data after his girlfriend was injured in a cycling accident by a car turning right near Avenue and Davenport Roads, fourth on his list of the most dangerous intersections in Toronto.

DangerousIntersections3

The top 10:

  1. Lake Shore Blvd. E and Carlaw Ave.
  2. Queen St. W and Niagara St.
  3. Queen St. E and River St.
  4. Bathurst St. and Davenport Rd.
  5. Avenue Rd. and Lonsdale Rd.
  6. Bloor St. W and Brock Ave.
  7. Bloor St. W and St. Thomas St.
  8. Lake Shore Blvd. W and Jameson Ave.
  9. Bloor St. E. and Castle Frank Rd.
  10. Bloor St. E and Parliament St.

See the list visualized on a map.

DangerousIntersections2

Adrian makes a number of interesting observations, including:

  • Bloor and Queen Street, two major East-West routes for cyclists have a large number of incidents, and neither street has bike lanes
  • Many of the most dangerous intersections are not straight
  • Accidents were more like to take place during the evening rush hour commute.

The full list of the 50 most dangerous intersections in Toronto can be found on Adrian’s blog site Adventures in Data.

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