One key to Truck drivers avoiding rear-end collision is proper knowledge of stopping distances.  Stopping distance refers to the distance necessary to bring a Truck, or that fact, any motor vehicle to a stop.  There are many factors that must be taken into consideration in order to determine stopping distances.  These factors include: 1) the decision making process, in other words, the time,no matter how small, it takes for a driver to physically react after the decision to stop.  This is commonly referred to as perception-reaction time; 2) the braking system on a Truck and Trailer.  With most systems, there is a momentary delay in the actual activation of the brakes; 3) the road and weather conditions.  Obviously, it takes longer for a Truck and Trailer to stop on a wet or icy road; and, 4) the speed at the time of the decision to stop.  These are merely the basic factors related to stopping distances. Now, let’s look at actual stopping distances.

The following figures are not intended to be exact, nor utilized specific manner.  Rather, they are intended to provide general information.

You can see from research conducted by James Madison University that as speeds increase, the stopping distances for automobiles and Trucks increases.

Proper following distances and consideration of stopping distances are keys to safe trucking travel.  It is only through proper and ongoing training that Truck drivers obtain the knowledge to drive safely.