When driving next to or near a semi-truck, it’s important to give the truck driver plenty of space in case an emergency arises. A semi-truck does not have the same stopping capabilities of a passenger vehicle due to perception, reaction time, braking distance, and brake lag. Allow us to explain:

1. The Semi-Truck Driver’s Perception 

As with all other vehicles, a semi-truck driver must be aware of situations in front of him on the road. From his initial perception, he must react accordingly and quickly. Because of pressure from his company to meet quotas or personal goals he has for work, he may use catalysts that negatively affect his perception, such as alcohol or drugs. Distracted driving and tiredness are also two factors that can be a grave danger to semi-truck drivers and other drivers on the road.  

2. The Semi-Truck Driver’s Reaction Time

After processing the events occurring in front of him, the semi-truck driver must react quickly to avoid a semi-truck accident. One second could be the difference between avoiding or causing an accident. Due to the size and weight of a semi-truck, a semi-truck driver’s reaction time is vital to optimize road safety. The size and weight of a semi-truck can drastically affect drivability in circumstances such as:

• Turning & maneuvering the truck
• Roll-overs may occur due to a higher center of gravity
• Ascent & descent are affected
• Intense gusts of wind can tip the truck

You can read more about a semi-truck’s drivability in one of our recent blogs. 

3. The Semi-Truck’s Braking Distance

After the driver has identified the situation and reacted accordingly (i.e., braking or changing lanes), braking distance will come into play. The semi-truck’s weight will severely affect the time it takes for a semi-truck to come to a complete stop. The heavier the truck is, the longer it will take to stop.

According to The Federal Motor Carrier Safety Administration (FMCSA), a normal passenger vehicle will need 300 feet to stop if traveling at speeds of 65mph. A semi-truck will need 600 feet to stop if traveling at speeds of 65mph. 

4. The Semi-Truck’s Brake Lag 

Passenger vehicles have hydraulic brakes that begin working the moment the driver presses the brake pedal. Semi-trucks have an air brake system that utilizes air to help the truck come to a stop. Even though the build-up of air could take less than a second, this lag time could make the difference between an accident or safety. 

Our attorneys zealously fight for semi-truck accident victims! Call us today for a free consultation: 478-254-5040

Stay tuned for our six-part series on semi-truck accidents:

1. 5 Fatal Causes of Semi-Truck Accidents
2. 4 Ways the Size & Weight of a Semi-Truck Affects Drivability
3. 4 Factors that Determine a Semi-Truck’s Stopping Distance
4. Explaining the Dangers & Fatal Consequences of an Overweight Semi-Truck
5. How to Avoid a Squeeze Play Accident with a Semi-Truck
6. Simple Tips to Minimize Semi-Truck Accidents at an Intersection