202. 雨
雨は、視界、タイヤグリップ、車両制御を低下させ、停止距離を増やします。路面の水により、タイヤが路面との接触を失うハイドロプレーニングが起こることもあります。運転者は減速し、車間距離を増やし、急な操舵・制動を避け、視界が低下したら適切な灯火を使用します。大雨や、わだち・排水不良道路に水がたまる場所では特に注意します。
How does rain affect driving?
Rain can reduce visibility and tyre grip, increase stopping distances and make it more difficult to control the vehicle safely.
What is aquaplaning?
Aquaplaning occurs when a layer of water builds up between the tyres and the road, causing the tyres to lose contact with the road surface and reducing steering and braking control.
How should you drive in heavy rain?
Reduce speed, increase your following distance and use smooth steering, acceleration and braking. Use the appropriate lights and be prepared for reduced visibility and standing water.
Why should you increase the following distance in rain?
Wet roads can increase the distance needed to stop. A larger following distance gives you more time and space to react safely.
What should you do if the vehicle starts aquaplaning?
Remain calm, ease off the accelerator and avoid sudden braking or steering. Make smooth corrections until the tyres regain contact with the road.
Should you use headlights in rain?
Lighting requirements vary between countries. Drivers should use the lights required by local traffic rules whenever rain or other conditions reduce visibility.

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