Which weather condition directly reduces traction on rails?

Which weather condition directly reduces traction on rails?

• A. Mud can hide hazards.
• B. Wet or icy rails reduce traction.
• C. Glare or reduced visibility can hinder detection of trains.
• D. Windy conditions.

Answer: (B)

Traction between train wheels and rails comes from friction at the wheel-rail interface. Wet or icy rails reduce this friction, so the wheels can slip more easily during acceleration or braking. Water lowers the grip on the steel surfaces, and ice can make the surface nearly slick, increasing stopping distances and making it harder to control speed. While the other options describe real hazards, they don’t directly impact how much grip the wheels have on the rails.

Traction between train wheels and rails comes from friction at the wheel-rail interface. Wet or icy rails reduce this friction, so the wheels can slip more easily during acceleration or braking. Water lowers the grip on the steel surfaces, and ice can make the surface nearly slick, increasing stopping distances and making it harder to control speed. While the other options describe real hazards, they don’t directly impact how much grip the wheels have on the rails.