When following other vehicles, maintain a space cushion of at least:
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300 feet.
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Two seconds.
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Three seconds.
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200 feet.
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Explanation
When following other vehicles, you should maintain a space cushion of at least three seconds. This distance allows you enough time to react to sudden changes in traffic flow, such as the vehicle in front slowing down or stopping unexpectedly. The three-second rule provides a practical guideline for maintaining a safe distance, allowing you to adjust your speed accordingly and reducing the risk of rear-end collisions. At high speeds or in bad weather, you may need to increase your following distance.
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Other questions in the same category: Safe Following Distances
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This question appears in the following DMV practice tests: