When on the road I use my cell phone for all the things talked about here. Cell phone coverage is pretty comprehensive now. Ham radio is not directly related to traffic and traveling. CB used to be but not so much anymore. My brother, a retired over the road trucker, took the CB out of his truck years ago and relied on his cell phone.
I do use handheld CB occasionally when hiking to talk to others in my group.
If you want a radio, by all means get one. However, a cell phone works too and you probably already have one.
2003 34' Georgetown on W20 Workhorse Chassis. UltraRV power mods. Doug Thorley Headers and MagnaFlow 12589 mufflers. Front Sumo Springs, Rear P32 Sumo Springs, UltraRV Track Bar.
1998 Jeep Toad.