The truck was driving in a straight line and had no intention of changing lanes.
However, just when the taxi was a little more than a head away from the truck behind it and was about to change lanes, the truck in front suddenly stepped on the emergency brake.
The taxi, which had been about to change lanes a few feet further up, saw this and immediately stepped on his own emergency brake.
Although the taxi driver reacted quickly, he had still been going too fast. He was less than 110 feet away from the truck in front.
If one was driving at 70 miles per hour, the driver should get at least three seconds to react and judge if there was an emergency ahead. Therefore, the safe distance between the car and the truck on the highway should have 650 feet. This was to ensure that the driver could step on the brakes in time when going at 70 miles per hour.
