What does "chocking" involve during loading and unloading?

Chocking refers to the practice of placing wedges or blocks under the wheels of a vehicle, such as a tractor-trailer, to prevent it from rolling or shifting while parked, especially during the loading and unloading process. This is a critical safety measure that ensures stability and helps prevent accidents while cargo is being loaded onto or unloaded from the trailer. By securely chocking the wheels, the risk of the trailer moving unexpectedly or rolling away is significantly reduced, creating a safer working environment for all personnel involved in the loading and unloading operations. This practice is essential in maintaining control over the equipment and safeguarding the cargo as well as the workers.