What does the snail sign on the truck mean?

A traffic sign indicating that a truck is driving slowly.

The truck snail sign is a traffic sign used to indicate that the truck is driving slowly. The shape is the outline of a snail, usually white or yellow, attached to the back of the truck. The purpose of this sign is to remind the vehicles behind to keep a safe distance and avoid dangerous behaviors such as rear-end collision or overtaking.

The snail sign of truck is a sign that reflects the professional characteristics and spirit of truck drivers. It is not only a safety reminder, but also a cultural symbol. I admire the hard work and hard life of truck drivers, and I hope to complete every transportation task safely and smoothly.