[Answer] While driving on a highway you must maintain a safe following distance using _________ under normal conditions.

Answer: the two-second rule

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While driving on a highway you must maintain a safe following distance using _________ under normal conditions. The two-second rule is a rule of thumb by which a driver may maintain a safe trailing distance at any speed. The rule is that a driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle. The two seconds is not a guide to safe stopping distance it is more a guide to reaction times. The two-second rule is useful as it can be applied to any speed. Drivers can find it difficult to estimate the correct distance from the car in front let alone remember the stopping distances that are required for a given speed or to compute the equation on the fly (BD = (SMPH/20)*SMPH). The two-second … The two seconds is not a guide to safe stopping distance it is more a guide to reaction times. The two-second rule is useful as it can be applied to any speed. Drivers can find it difficult to estimate the correct distance from the car in front let alone remember the stopping distances that are required for a given speed or to compute the equation on the fly (BD = (SMPH/20)*SMPH). The two-second rule gets around these problems and provides a simple and common-sense way of improving road safety. The practice has been shown to considerably reduce the risk of collision and also the severity of any injuries if a collision occurs. It also helps to avoid tailgating and road rage for all drivers. A large risk of tailgating is the collision avoidance time being much less than the driver reaction time. Driving instructors advocate that drivers always use the "two-second rule" regardless of speed or the type of road. During adverse weather downhill slopes or hazardous conditions such as black ice it is important to maintain an even greater distance. The two-second rule tells a defensive driver the minimum distance needed to reduce the risk of collision under ideal driving conditions. The allotted two-seconds is a safety buffer to allow the following driver time to respond. To estimate the time a driver can wait until the rear end of the vehicle in front passes any distinct and fi… Read more on Wikipedia Whereas most driving is done below 80 miles per hour (130 km/h) maintaining a blanket 5 or 6 seconds of travel time to the edge of visibility (t= 80 / 20 +1) will keep drivers in compliance with the ACDA rule in most simple highway driving conditions – day or night – with growing error towards safety at lower speeds. Two-second rule - Wikipedia Two-second rule - Wikipedia Two-second rule - Wikipedia Two-second rule - Wikipedia ...

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