Why is traffic jam easy when it rains?

1, the road conditions will be bad and the visibility will be reduced in rainy days. Drivers will slow down for safety, making the road a bit crowded.

2. Sometimes in rainy days, people may drive more for the convenience of travel, so in some places with major traffic routes and poor road conditions,

And there will be traffic jams in crowded places.

3. Rainwater acts as a lubricant between the wheel and the road in rainy days, which weakens the braking effect and easily leads to traffic accidents. Slow speed, slow start at traffic lights, easy to get stuck in traffic jams.