We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Lane Departure Warning?

Mary McMahon
By
Updated May 23, 2024
Our promise to you
WikiMotors is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At WikiMotors, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A lane departure warning is a safety system in a car which alerts the driver when the car drifts out of its lane. In addition to being available for cars, lane departure warning systems can also be installed in trucks, buses, and other vehicles. The use of such systems can dramatically cut down on accidents caused by inattentive driving, making the road safer and reducing expenses related to motor vehicle accidents, such as legal claims lodged against inattentive drivers.

Lane departure warning systems work slightly differently in various models of car. Most have cameras which are designed to see the markers used to outline the lanes of a road, and the cameras can distinguish between yellow and white markings. Other cars use different types of sensors. In all cases, when the sensor detects that a car appears to be drifting out of its lane, some sort of alarm is issued, such as a popup on the display panel of the car or a buzzer.

When a turn signal is enabled, indicating that the driver intends to turn or change lanes, the lane departure warning will be disabled, as the driver clearly intends to move out of the lane. In all other cases, the warning system will be active. Lane departure warnings can alert tired and sleepy drivers that they are drifting, perhaps because they are losing focus, and that it might be time to take a break, and they also also warn fully alert drivers that they may not be paying enough attention to their position in the road.

Safety pioneers like Volvo were among the first to install lane departure warning systems, along with other sensor systems designed to increase driver safety by looking for problems with the driver, the car, or the roadway. The introduction of such systems to the trucking industry has also had a profound impact, reducing accidents and making trucking much safer.

These systems are primarily available fully installed in new cars, although some companies offer systems which can be used to retrofit existing vehicles for safety. A car with a lane departure warning system may cost less to insure, as insurance companies usually reduce the rates for drivers with special safety features in their cars. This can reduce the cost of the car over its lifetime, even if having such a system adds to the cost of a car at the time of purchase.

WikiMotors is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Mary McMahon
By Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a WikiMotors researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

Discussion Comments
Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a...

Learn more
WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.

WikiMotors, in your inbox

Our latest articles, guides, and more, delivered daily.