Truckers' Convoys
The film Convoy, inspired by a 1975 song of the same name, explores the camaraderie between truck drivers, where the culture of the CB radio encourages truck drivers to travel in convoys.
Truckers' convoys were created as a byproduct of the 55 mph speed limit and 18-wheelers becoming the prime targets of speed traps. Most truckers had difficult schedules to keep and as a result had to maintain a speed above the posted speed limit in order to reach their destinations on time. Convoys were started so that multiple trucks could run together at a high speed with the thinking being that if they passed a speed trap the police would only be able to pull over one of the trucks in the convoy. When driving on a highway, convoys are also useful to conserve fuel by drafting.
The truckers' convoy is more similar to a caravan than a military convoy.
Read more about this topic: Convoy