Ch. 5 · Driving Method
When traveling at 100 kilometers per hour on an expressway, if the road surface is dry and the tires are new, it is necessary to maintain a following distance of approximately 100 meters or more from the vehicle ahead.
[True / False · Medium]
Answer: ✓ True
Explanation
When the road surface is dry and the tires are new, a following distance of approximately 100 meters is necessary at 100 kilometers per hour. At 80 kilometers per hour, approximately 80 meters is the guideline. If the road surface is wet from rain or the tires are worn, a following distance of approximately twice this distance may be necessary. This is stated in Chapter 7, Section 2 (Driving Precautions), 2(4) of the Rules of the Road.
Driving school curriculumStage 1 – Topic 7: Safe speed and following distance
Source: Ch. 5 Driving Method · Section (第４節 安全な速度と車間距離) · 第７章 第２節 走行上の注意 ／ ２（４）車間距離を十分とつて走りましよう。路面が乾燥していて、タイヤが新しい場合は、時速100キロメートルでは約100メートル、時速80キロメートルでは約80メートルの車間距離をとる必要があります。また、路面が雨にぬれ、タイヤが減つている場合は、この約２倍程度の車間距離が必要となることがあります。
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Source content excerpted from the NPA “Rules of the Road” instructional manual, in the public domain under Japanese Copyright Act Article 13(2). Explanations are AI-assisted and copyrighted by the MenkyoQuest editorial team.