Cars often tend to clump with each other on highways, regardless of the absence of traffic lights, because that a number of reasons, including the misuse of the passing lane, a desire to avoid tickets, and subtle psychological aspects of driving near others.

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If you’ve ever taken a road trip across the country, then you have spent lot of of hrs on the highway, occasionally with tiny to do other than occasionally pass a lone truck. However, over there are other times once you come end a rise and also spy a huge group of cars ahead, between 15-20, that all seemed to it is in grouped with each other on an otherwise empty highway. It appears unlikely the the mixture the cars and also trucks would certainly all it is in traveling with each other at a uniform speed, or caravanning come the exact same destination. Furthermore, v nothing ahead or behind the group for at the very least a half-mile, it seems more natural to spread out out than to bunch together.

Despite this seemingly reasonable thoughts, all chauffeurs have encountered this “packs” ~ above highways and freeways, and have likely been just as mystified together you! So… what reasons cars on the highway come gather right into “packs”, fairly than each of them behaving together lone wolves?


Highway Lanes and also Speeds

Everyone moves through life in ~ their very own pace, and also the exact same thing is true ~ above the highways the life; every driver prefers to move at their own speed. Some world strictly monitor the speed limit, if some favor a faster approach, and also others may travel under the rate limit, an especially if they room in a huge or unfamiliar vehicle. Due to this variability the speed, there room multiple lanes, typically increasing in rate from one side of the highway to the other.

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Psychological Elements

In a slightly related way, there is likewise a comfort that comes through trailing one more car in ~ a safe distance. If you discover yourself behind a automobile traveling at practically the exact same speed, you deserve to put ~ above cruise control and also simply drive, which requires much less effort and also attention than weaving into and out of the passing roadway at a greater speed. Depending on your urgency and comfort level while driving, it might be much more relaxing to place yourself behind another car and base your actions on your behavior, including increasing/decreasing rate and changing lanes.

Some studies have found that drivers who “pair” in this means begin to mimic the various other partner, also in small nuances of lane location. When enough drivers take on this behavior, albeit unconsciously, a fill will type on the highway. Basically, even when we’re alone in a car, life is a bit easier with a companion—even if it’s a complete stranger in one more vehicle!

A final Word


Next time you’re flying under the highway and stumble top top a pack of dare spread throughout the lanes, rather of getting frustrated and also tailgating or laying top top the horn, slow-moving down and try to recognize what is leading to the apparent slowdown. Recognize why these packs form may assist you navigate them an ext smoothly, and ensure that you have actually a safe, efficient and enjoyable expedition on the highways of life!