Maintaining a safe driving space around the vehicle is largely something that drivers can control. While many of us have been taught to focus on space — keeping several car lengths between one's vehicle and the car ahead — a better formula concerns time.
by Marianne Matthews
July 13, 2018
Following distance can vary depending on the vehicle you're driving.
Screenshot via The Traverlers.
2 min to read
Maintaining a safe driving space around the front, side, and rear of your vehicle so it will be less vulnerable to collisions is largely something that drivers can control.
Consider, for example, following distance. Drivers can be in command of proper following distance. Yet, even the most seasoned professional drivers can use a reminder about best practices.
Ad Loading...
While many of us have been taught to focus on space — keeping several car lengths between one's vehicle and the car ahead — a better formula concerns time.
For drivers, it takes 1.5 seconds to notice a potential risk in front of their vehicle and another 1.5 seconds to react, hit the brakes and slow down.
That's why the "three-second rule" was born. The idea is to make sure that there is always at least three seconds of time between your vehicle and the vehicle just ahead.
The way to do so is easy. Drivers should wait for the vehicle ahead to pass a set object such as a tree, lamppost, or large rock. Once that vehicle passes it, start counting. If your vehicle reaches the object before you get to three, your following distance is too close and you need to adjust it by dropping back a bit.
What's more, there are times you need to add more seconds to the formula. For example, in bad weather add one second; if driving an SUV, add one second; and large commercial vehicles should add three seconds.
Ad Loading...
In addition, some experts recommend that following distance should be two times bigger in the winter versus the summer.
Always bear in mind that the faster you drive, the more time and space it takes to stop or maneuver your vehicle, notes AAA.
AAA also points out that in addition to speed, there are three other factors that can impact on your safe driving space. These include:
Visibility: If you can't see at least 12 seconds ahead, you need more following space.
Road conditions: It's always smart to leave more following space when driving around tight curves, over hills, or when obstacles are in the road.
Traffic: Bear in mind that other motorists may make erratic moves in traffic jams, so a longer following distance is wise.
Distracted driving remains one of the most persistent risks in fleet operations. New approaches focus on removing mobile device use entirely while adding real-time safety support.
As distraction risks evolve, fleets are turning to smarter, more connected technologies to better understand what’s happening behind the wheel. Part 2 explores how these tools are helping identify risky behaviors and improve visibility across operations.
Distracted driving is often measured by what we can see—phones in hand, eyes off the road. But what about the distractions we can’t? A recent incident raises a bigger question about awareness, attention, and why subtle risks so often go unnoticed.
Fleets have more driver data than ever, so why isn't behavior changing? Training requires more than reports and coaching — it requires real-world practice.
A two-part conversation with Stefan Heck on how AI is transforming the fight against distracted driving. As fleets adopt smarter tools, the focus shifts from reacting to preventing risk. In Part 1, we look at where AI is making an impact for fleets today.
An 11% drop in pedestrian fatalities in early 2025 signals progress in U.S. road safety, but elevated death rates and ongoing risks underscore the need for continued action from fleets and policymakers.