Trethewey & Chiswick

Traffic volume8-hour count · Mar 1, 2023

Traffic is heaviest from the west: 2,779 eastbound vehicles entered from that leg, 46% of the total, against 136 from the north. Evening rush dominates here: 1,083 vehicles in the peak hour from 4:30 p.m., against 944 in the morning peak from 8:00 a.m. Trucks and buses were 5.3% of traffic, well above the typical 3.2% — a sign of a goods-movement or bus corridor. For scale, a typical counted intersection in Toronto sees 16,177 vehicles over 14 hours. The count is 4 years old — treat it as a snapshot of 2023, not today's volume. It was an 8-hour count, which is not directly comparable with the 14-hour counts the City has used since September 2023.

Peak hours: 944 vehicles in the hour from 8:00 a.m. and 1,083 from 4:30 p.m. (approach figures are vehicles entering from that leg over the whole count — one day's traffic, not an annual average).

Collisions 2016–2025 · within 65 m

The worst year was 2024, with 2 collisions; 2025 recorded 1. 2 collisions (17%) involved an injury. 2 drivers failed to remain at the scene — 17% of collisions. 1 collision involved a pedestrian or cyclist (8%). The most recent report on file is from Jan 19, 2025.

One collision in 2016–2025 left someone seriously injured; it was not fatal. 1 motorcyclist was among those hurt. It happened in daylight or lit conditions. The most recent was on Apr 16, 2024.

A collision counts when its recorded location is within 65 m of the centreline node, intersection-related or not. KSI = killed or seriously injured, the basis of the danger rankings; records can lag a year or more, so the current year is outside the window. How collisions are counted.

How fast traffic moves here

On Trethewey Dr between Tedder St and Walkway W of Platinum and S of Trethewey, 266 m from the corner, a 3-day count in May 2023 put the average speed at 51 km/h and the 85th-percentile speed at 58 km/h, with the fastest one in twenty at 64 km/h or more. That segment carries about 12,100 vehicles a day. Chiswick Ave between Hearst Crcl and Harding Ave measured slower: 36 km/h on average and an 85th percentile of 43 km/h (Sep 2017).

Midblock counts are automatic counters laid across the road for one to seven days; 85% of drivers were at or below the 85th-percentile speed. A reading is not the speed through the intersection itself, and posted limits are not in the count data. How speeds are read.

Not within a walk: a community centre, a library, a public washroom or a care or retirement home.

• Groceries and food13/30

  3 grocery stores within 1 km · 3 places to eat within 300 m

• Transit14/28

  4 stops within 300 m · 10 routes within 1 km

• Library and places to go0/14

  none within a walk

• Parks and recreation6/10

  3 parks within 500 m

• Schools and child care4/8

  1 school within 500 m · 3 licensed child cares within 1 km

• Crossing on foot0/10

  no crossing features on file

Our own measure, not a licensed walkability rating: every point comes from a City dataset listed under Sources, and the six parts add up to the score. How the score is built · the full ranking.

Within a kilometre there are 14 RentSafeTO-registered apartment buildings — 2,073 rental units — three social or Toronto Community Housing. The nearest is 710 Trethewey Dr (310 m, 369 units, 19 storeys, built 1974), which scored 87 out of 100 at its November 2025 RentSafeTO evaluation. One building of the 14 scored below 70; the average is 87, below the 90 typical of Toronto intersections.

14 registered buildings · 2,073 units · 3 social housing · tallest 23 storeys. The score is the City's RentSafeTO evaluation out of 100; buildings of three or more storeys and ten or more units are registered, condominiums and houses are not. Each building links to its full record on LandlordReport.

• Traffic counts: City of Toronto, Traffic Volumes – Multimodal Intersection Turning Movement Counts, latest count Mar 1, 2023.
• Serious-injury collisions: City of Toronto / Toronto Police Service, Motor Vehicle Collisions involving Killed or Seriously Injured Persons, records through Oct 11, 2026.
• All collisions: Toronto Police Service, Traffic Collisions Open Data, records through Sep 30, 2026.
• Cameras: City of Toronto, Red Light Cameras.
• Speeds and calming: Midblock Vehicle Speed, Volume and Classification Counts.
• Within a walk: DineSafe (Toronto Public Health), inspections Nov 2023 – Oct 2026; Park Washroom Facilities, Washroom Facilities in City Buildings, Automated Public Toilets, Park Drinking Water Sources; Licensed Child Care Centres; Ministry of Health Service Provider Locations (Ontario) — Contains information licensed under the Open Government Licence – Ontario.; City of Toronto School Locations, Parks and Recreation Facilities, Library Branch General Information, Places of Interest and Attractions, Traffic Signals Tabular, Neighbourhoods.
• Apartment buildings: City of Toronto Apartment Building Registration and Apartment Building Evaluation (RentSafeTO), as compiled by LandlordReport (imported Sep 10, 2026).
• Ward and BIA: Wards and Elected Councillors (Ward 5 councillor), Business Improvement Areas.
• Getting there: TTC Routes and Schedules (GTFS), GO Transit GTFS, UP Express GTFS, VIA Rail GTFS, MiWay (Mississauga) GTFS, Durham Region Transit GTFS, Brampton Transit GTFS, York Region Transit GTFS, Bike Share Toronto, Cycling Network; Topographic Mapping – Physical Area of Parking Lots, Green P Parking with Parking Occupancy, City-Operated EV Charging Stations, Street Furniture – Bicycle Parking, Bicycle Parking Racks, High-Capacity Bicycle Parking, Indoor Bike Stations. Data provided with permission of Metrolinx where GO and UP Express appear.
• Coordinates: 43.69714, -79.49663 · centreline node 13458879.