The CB radio is the greatest invention ever for short-range warnings of road hazards. Nothing else will give instant alerts to the dangers that matter most, the ones in your immediate vicinity. Unfortunately, there isn't always a trucker who is nearby to give you warnings that there's danger or a traffic-delaying wreck up ahead, but there's enough to make the $100 CB setup worth it.
I am glad the CB traffic is just a small fraction of what it was during the Breaker/Breaker days. Most of that traffic was pure chit-chat anyway. That's not what I want the CB for.
In my area of the South, Channel 19 going in any direction is where the truckers stay.