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Why freeway traffic comes to a crawl, stop
Sometimes when you're driving on the highway, traffic comes to a crawl or stop. Usually, it doesn't take much to figure out why. When traffic speed does pick up again, you may see a car pulled over with a popped hood or flat tire. Sometimes, you roll up moments after a crash. Perhaps, a CHP cruiser is stopped along the side of the road with an officer pointing a speed detecting device toward you and other oncoming vehicles. Other times, you'll find an officer parked behind a traffic scofflaw. Other explanations for the brake lights are vehicles getting on and off the freeway, as well as the lane jockeying associated with those movements. However, there are times when freeway traffic goes from 65-0 mph and back up to speed again with no sign of trouble. Below is a link to an article that explains the mystery behind traffic slow downs, sent in to Street Smarts by a friend in law enforcement. http://www.bitrebels.com/lifestyle/why-do-freeways-come-to-a-stop-infographic/.