What is the correct following distance for a tractor trailer?

The correct following distance for a tractor-trailer is typically at least four to six seconds behind the vehicle in front of it. This distance allows for sufficient reaction time, considering the larger size and weight of the truck, which requires more time and distance to stop safely. Factors such as road conditions, weather, and traffic speed may necessitate an even greater following distance. Always prioritize safety by adjusting your distance based on the driving environment.