About 90% of all traffic collisions are caused by driver error, according to the U.S. Department of Transportation, and accidents often occur due to aggressive drivers. The best way to avoid an accident is to drive defensively.

Here are some valuable defensive driving tips to share with your fleet drivers:

Never Drive Impaired

Arrive at the wheel — your place of work — fresh and alert. Never get behind the wheel impaired in any manner, including being sleep-deprived, which can lead to drowsy driving.

Leave Ample Space around your Vehicle

Other drivers may make a sudden move at any time. That's why it is imperative to always leave ample distance between your vehicle and the one ahead, as well as on the sides of your vehicle. This way, you have the ability to brake, turn or change lanes in the event you need to do so in an instant.

Look Down the Road

Look as far ahead as possible in order to spot obstacles, accidents, or pedestrians in the road.

Know the Speed Limit

Always make sure you are aware of the speed limit and drive at or under the limit. It's easier to stop if you're moving at a slower speed.

Drive Predictably

Tailgating, or speeding up then slowing down, are dangerous games to play on the road and could lead to a collision. Drive at a smooth, steady pace to stay safe.

Anticipate Aggressive and Unfocused Drivers

Never assume other drivers are cautious and attentive. Always be alert to sudden moves, aggressive behaviors, and distracted drivers. The more aware you are of others on the road, the better able you will be to rapidly move away from hostile or unfocused drivers.

Defensive driving can save your life. For more advice, watch a Defensive Driving 101 video from Allstate Insurance.