Fortunately fewer and fewer people are using them, thus even at/near large cities CB Radio has sustained its integrity without alot of noise as best method for obtaining real time reports of traffic conditions, speed traps, alternative routes, cheapest diesel fuel, emergency roadside vehicle repair, tornados, floods, brush fires, rioters and wrecks in the street, etc.

And one of the coolest things I've heard myself when driving down the road was police breakin onto the truckers' band during gunfight chase scenario of murder suspect at Louisville - relaying description and plates of the vehicle, deputizing everybody to bash him if they saw him. Reconnoitre transmit/receive over CB airwaves covers about 5-8miles yet spans an easy 50-80 miles real fast with msge repeated down the line.