6 seconds 5 seconds 4 seconds Always Remember the 4 Second Rule Except when it doesn’t apply... The minimum safe following distance for any vehicle is calculated based on ideal weather and road conditions. Because adverse conditions such as rain/ice, poor visibility or driver fatigue can slow reaction times or increase stopping distance, the National Highway Traffic Safety Administration (NHTSA) recommends adding one second of following distance for every adverse condition.
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Transcript
6 seconds
5 seconds
4 seconds
Always Remember the 4 Second Rule
Except when it doesn’t apply...The minimum safe following distance for any vehicle is calculated based on ideal weather and road conditions. Because adverse conditions such as rain/ice, poor visibility or driver fatigue can slow reaction times or increase stopping distance, the National Highway Traffic Safety Administration (NHTSA) recommends adding one second of following distance for every adverse condition.
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