
There is a phenomenon I have witnessed on Seattle's highways. That of people driving at the same speed next to each other. This is much akin to geese flying in formation.
Don't create the flying V. This is wrong. People should just be getting into the passing lane (that is the left one for those of you moving here from the other hemisphere) unless you intend to pass somebody. If you aren't passing, please refrain from using this lane. The space is primarily there to enable PASSING not CRUISING.
If you are being passed by cars in the right lane, you probably should not be in the left (passing) lane. This key indicator, cars passing you with people shaking their fists in the air, is a signal for you to get back into the non-passing lane.
If you do, in fact, decide to pass someone in the left lane, please return to the non-passing lane when you are done and you will be helping reduce congestion and will be helping Seattle with its traffic problem.
A final note, passing is one the most dangerous components of driving. According to IVI, lane changes account for 10% of crashes. When you're passing, be extremely careful with each lane change; signal your intentions by turning on your signal long before changing lanes; and be respectful of the other vehicles on the road. Also, be extra careful on the 24th since it's Drive Nice Day!