Next time you hit a traffic jam jump on your cellphone
Not much you can do about it if you are caught in it so, don't care. My Garmin with traffic will get me around it and here, in town, KTAR and "Detour" Dan Beach keeps me and the rest of the fools who are out in it, updated. I have not been on CB since the 70's and really do not have a desire to listen to all of the vulgar stuff going on there. The cat calls toward women drivers, the F this and F that is not what me or my wife want to listen to while traveling.
With all of the overhead message boards on freeways and Interstates you are so well informed that radios are not that much help. The person ahead of you caught in it doesn't know much more than you do. and 511 here gives you road updates. So it is kinda, the days of CB that was helpful is dead.
So, I guess that Ham is good for group functions and I belonged to a private system that covered much of CA, Arizona, parts of Utah, Colorado and NM. That was worth the membership when I was traveling for the job but cellphones pretty much made that outdated also.