To enter highway traffic, you need at least:
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A 2 second gap.
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A 4 second gap.
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A 6 second gap.
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A 3 second gap.
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Explanation
When entering highway traffic, merge only when there is enough space for your vehicle. Ideally, look for a gap of at least 4 seconds - this allows for a 2-second following distance in front of and behind your vehicle. Do not attempt to merge into a small opening, as it can close quickly and leave you with no room to react. Choose a gap that gives you a safe cushion of space so you can merge smoothly and avoid cutting off other drivers.
Answer Statistics
🟡 This question is moderately difficult — 25% of our users answer it incorrectly.
Other questions in the same category: Highway Driving Techniques
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This question appears in the following DMV practice tests: