Common sense is the key slowing down is the best remedy. Driving all kinds of rigs from Semis triple combos and everything in between. My opinion is the roads the concrete stuff is terrible go from LA county to any other county and it is like night and day. Loading is key it is all balance for example a freight truck single axle heavier trailer in front or you will get wiggle waggle as I call it.
This is my opinion only do not take it as gospel. I have a WD setup used with my Dually, 2500 and Suburban and prefer not using it with the right truck that is capable suspension wise and motor. I run as if I am in my Semi and people talk about sway etc but put it in a Class A state of mind i run in the winds off the 15/10 and 60 interchanges and when winds are tipping the trees over time to pull off and sit it out. Now when I run west on the 10 towards banning it is mainly a headwind. However when debris or sand starts blowing across the HWY pull over nose into the wind.
This is all subjective because rules of pulling a 5er or travel trailer are not as stringent. Key is doing your pretrips even if you stop for something to eat. Make sure tires are checked for issues and drive smart. Most rigs give room when passing or being passed but there always exceptions. If in slow lane slide to right a little and or left a little when passing. Some folks are just plain stubborn, dumb or just inexperienced.
Depending on diesel or gas Semis brake front rear to front, that is why a brake controller is nice you can manually use trailer brakes to slow you down and then use your rig and combo which keeps things cooled down ride it hard may not stop. If anyone drives the 10/210 on getaway Fridays or holidays know what I mean and I leave from Valencia and end up in Phoenix or san Diego. The hardest part is LA Counties roads and freeways. My opinion again is that many people buy equipment that they are not trained or used to driving and that is why a lot of posts start with sway. big trucks going by each other have similar effects. I think the hardest thing to do is ride my long stretch chopper in the sidewinds that is always wild ride.
Funny thing is if I tow with my Suburban feel less of the wind, and with the 2500 feel it more. i used to run with my roll up doors up if i was empty because it settled the trailers down high and low pressure not recommended for amateurs. Come down 395 when a storm coming across sierras and if empty sure made a sidewind a little easier to deal with. I have driven by convoys of RVers going north or south and again the beligerance makes for harrowing experiences but that goes both ways. Plus to be fair i would fire a lot of drivers on the road these days. Picked up some tractors from swift and made that comment to the sales rep and looked at me funny. just get on the road channels and see how friendly drivers are nothing like it was even 20 years ago but that is a different story. Be safe