Ch. 5 · Driving Method

In rainy weather or when carrying heavy cargo, braking distance becomes longer, so it is necessary to maintain a greater following distance from the vehicle ahead than usual.

[True / False · Medium]

Answer: ✓ True

Explanation

This statement is correct. Chapter 5, Section 4 of the Rules of the Road states that braking distance becomes longer when traveling on rain-soaked roads or when carrying heavy cargo. Drivers are required to maintain sufficient following distance so that they can stop safely even if the vehicle ahead stops suddenly, taking into account weather conditions, road surface and tire condition, the weight of cargo, and other factors.

Driving school curriculumStage 1 – Topic 7: Safe speed and following distance

Hikari
Hikari
I guess rain makes the road slippery, but does cargo weight really matter for braking?
Misaki
Misaki
Absolutely—this statement is true. Heavier loads and wet roads both increase braking distance, so you need extra space behind the car ahead.
Hikari
Hikari
So I should back off more when it's raining or I'm loaded up?
Misaki
Misaki
Exactly. Think of it as buying yourself time—if they stop suddenly, you'll have the room you need to stop safely.

Source: Ch. 5 Driving Method · Section (第４節 安全な速度と車間距離) · 第５章 第４節 安全な速度と車間距離

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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.