Teton Transplant

Volunteers have measured and reported the yellow light durations at these stoplight camera locations in Seattle:

Intersection	Yellow Light	Speed Limit
35th and Avalon	3.5 sec	35 MPH
35th and Thistle	3.5 sec	35 MPH

The blue pins show the location of stoplight cameras.  Click on the pins to see yellow light durations.
View Seattle Stoplight Camera Locations in a larger map

Would you like to help measure and monitor the yellow light durations in Seattle?

The location of traffic cameras in your area of Seattle can be found here.

You can submit your data here:

Use a stopwatch, average four or five measurements, and be as precise as possible.

Be safe. Don’t try to do this while driving.