Drivers should keep a minimum following distance of:
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55 milliseconds, with an additional millisecond for every drop of rain in a 2 miles radius.
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two seconds, with an additional second for any vehicle in front of them.
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one second, with an additional second when approaching an intersection.
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four seconds during favorable weather and traffic conditions.
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Explanation
Rear-end collisions are almost always caused by drivers following too closely. Drivers should keep a minimum following distance of four seconds during normal weather and traffic conditions. They must increase this distance if the weather or traffic conditions worsen. Maintaining a large enough following distance helps avoid collisions, because it allows drivers to have more time to react to sudden hazards.
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Other questions in the same category: Safe Following Distances
You need extra following distance when:It is best to keep a space cushion:When driving, it is important to keep a space cushion _________ your vehicle.You should allow a four-second or more cushion when:Following the vehicle ahead too closely is the cause of many traffic accidents. Always maintain a minimum _____ following distance.You should increase your following distance when:Any time a driver wants to merge with other traffic, they should:As your speed increases, to stay safe it's important to:Braking distance is affected by:Drivers need to change their following distance when speed or road conditions change.
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