To safely stop in emergencies always allow a space cushion of at least:
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4 seconds behind the vehicle in front of you.
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1 second behind the vehicle in front of you.
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7 seconds behind the vehicle in front of you.
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5 seconds behind the vehicle in front of you.
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Explanation
When vehicles ahead do something unexpectedly, you will need time to react. Always leave enough room between your vehicle and the vehicle ahead so you can stop safely if the other vehicle stops suddenly. Maintaining a following time of 4 seconds improves your line of sight, and allows more time to avoid hazards.
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Other questions in the same category: Safe Following Distances
When following other vehicles, maintain a space cushion of at least:Drivers need to change their following distance when speed or road conditions change.When should you increase the distance between your vehicle and the vehicle ahead of you?Braking distance is affected by:Following the vehicle ahead too closely is the cause of many traffic accidents. Always maintain a minimum _____ following distance.As your speed increases, to stay safe it's important to:It is best to keep a space cushion:You should increase your following distance when:Allow extra space in front of your vehicle when following a:To keep the driver behind you at a safe distance you should:
This question appears in the following DMV practice tests: