Les – the camera there does NOT usually show the board but it is on our cams page https://westseattleblog.com/west-seattle-cams – which is always linked in the image caption on this item, and is also reachable by clicking the TRAFFIC tab on the navigation bar.
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The link at the very top of that page (before the cameras) is the city “Travelers Information Map,” from which you can get the travel times via the right sidebar at any time: http://web6.seattle.gov/travelers/

It would be very helpful if you had a link to the reader board traffic sign near Trader Joes so I could see actual travel times before I left home