I apologize, I missed your comment earlier. In my experience (before the tolls were in place on 520 to mess with things), the morning commute was heavy from Sea

I apologize, I missed your comment earlier. In my experience (before the tolls were in place on 520 to mess with things), the morning commute was heavy from Seattle->Microsoft exit. There was a lot less traffic going from Kirkland->Seattle. Once the tolls were in place, people went to the I90 bridge and amplified this. Over the several years I was driving in every day, backups on 520 from Seattle->eastside in the morning seemed to be an every day thing; on the commute home, the worst part was the 5 north -> 520 merge. Everyone going south on 5 wants to take the university exit, so they're all stopping in the left lane trying to merge in, while everyone from 5 north wants to get on the bridge and wants to merge into the left hand lane. Once you got past that little knot, it was usually clear sailing until you got on 405. I could see everyone sitting on 520 westbound waiting for the neck down from three to two lanes before speed picked up.