What Are Collision Avoidance Systems and How Do They Work?

Practicing safe driving behaviors on the road is important. Auto collisions can be not only costly, but fatal. According to the Insurance Institute for Highway Safety (IIHS), the U.S Department of Transportation reported that in 2023, 40,901 individuals died due to motor vehicle related accidents. In addition, the annual economic cost of crashes reached $340 billion.

For your business, having systems in place such as driver training and advanced technology for fleet vehicles can have its benefits to lessen the occurrence of accidents. Those benefits include lowering insurance costs, reduced fleet downtime for repairs or replacements, improved fleet productivity, and assisting with meeting and maintaining compliance requirements.

What is a Collision Avoidance System?

A Collision Avoidance System (CAS) is a safety system that assists drivers and alerts them of impending accidents and in some instances, automatically engages or overrides certain functions to assist the driver.

How Does a Collision Avoidance System Work?

CAS technology works through various vehicles features, such as cameras and sensors, by detecting objects or people that may be close-by. Also, drivers can be alerted by sounds, vibrations or visual signals so they can take immediate action. Lastly, there are also automatic responses that for any reason, where the system automatically engages or overrides certain functions to assist the driver.

What are the Parts that Make Up a Collision Avoidance System?

As previously mentioned, CAS can have cameras, sensors, and additional response mechanisms that alert drivers, here are some of those features:

Pedestrian Detection System

This system alerts the driver if there’s a person that may be coming within the vehicle’s path and the driver then can adjust (brake) accordingly. This is beneficial, especially if the pedestrian is within the driver’s blind spot (see next bullet) where visibility may not be best (weather, road conditions).

Blind-Spot Warning (BSW)

In some vehicles, drivers are unable to see what is surrounding them – this can prove true in larger vehicles. For example, if there’s an instance where they need to switch lanes or turns, if their visibility is interfered with in any way, this alert provides a visual indicator that this action isn’t safe.

Cross Traffic Warning

This system alerts the driver when there are objects (vehicles) or people approaching the vehicle on the sides. Most vehicles will have a visual alert on their side mirrors, or some may appear on camera (if applicable).

Lane Departure Warning (LDW)

If a driver may drift to another lane, this system alert triggers an alert either through sound or by automatic response such as physically assisting the driver back into the lane.

Forward-Collision Warning (FCW)

This system alerts a driver if there may be impediments in their path – these are usually in the form of sensors, cameras and radars.

Advanced Driver Assistance Systems (ADAS)

ADAS, just like CAS, helps drivers avoid potential collisions, but with ADAS, it further assists and enhances driver safety. Here are some of the technological features:

Adaptive Cruise Control

This feature adjusts the vehicle’s speed, so it is at a safe distance from other vehicles.

Parking Assistance

This feature visually shows the driver (via the rearview camera and sensors) a precise area in which the driver can navigate and park safely.

Electronic Stability Control (ESC)

This automatic feature helps the driver during moments of traction loss by applying the brake.

Automatic Emergency Brake (AEB)

This automatic feature applies the brakes instantly based on sensors to avoid potential accidents.

Rear Automatic Emergency Brake

This feature works alongside cross-traffic warning (see above) to alert drivers by applying brakes immediately to prevent crashing into objects or people.

Enterprise Fleet Management

As vehicles become more complex, many fleet operators need help navigating the fleet maintenance and repair process. Enterprise Fleet Management offers maintenance management options to fit different business needs. Our team of ASE-certified advisors provide maintenance and repair oversight, cost control, and expert advice. Contact your local Enterprise Fleet Management representative to find out how Enterprise Fleet Management can help you.