This basically just says you have to know which lane will usually be faster and why. If you know the area and traffic patterns you can do that and basically st

This basically just says you have to know which lane will usually be faster and why. If you know the area and traffic patterns you can do that and basically stick to your lane for long periods and just switch a few times. I have something like that on my pre-covid commute for example, where you have to be in the right most lane until between a certain off ramp and the corresponding on ramp. There's always lots of traffic and you go between 10 and maaaybe 40 km/h. There you switch to the leftmost land so that you don't get bogged down by the regular mergers from the on ramp in the right lane and the 'middle lane drivers' who merge into the middle lane right about there too. Then until the next on ramp you stay on the left lane but have to switch over to the right lane again because no trucks allowed on it and most people try to pass on the left lane while everyone else is stuck with middle lane drivers and trucks. If you know the area in the above example, just choose lane 1 for sanity. If you don't know the area and happen to stick to lane 4,id rather try weaving to be honest.