If slower traffic kept right, there’d be a lot less passing on the right. (If you’re getting passed on the right regularly, you might consider your own lane discipline as well as that of those passing you.)
Yes, this is also true, but I think the bigger problem is just speeding. People on the left are usually moving faster than people on the right or middle, on average, but some people want to go 20-30 mph over the speed limit. Normally I'd pull to the right so they can pass, but by the time I start doing that they're already starting to change lanes too!
True. If you take a highway that people feel is reasonable and prudent to drive at 75-85 mph and post it as 55, people will drive 20-30 mph over. I think the problem is more likely the 55 signage in that case.
