What Are Lane Departure Warning and Lane Keeping Assistance?

Technology like lane departure warning and lane keeping assistance are designed to let you know when you might be wandering from your lane and even give you a little nudge to help you stay put. But how do they work? Desola Bagolun goes hands-on to explain how these driver-assist technologies work.
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[@CarMax]

Lane departure warning and lane keeping assistance are driving-assist technologies that help ensure you stay in your lane. Read our full article here: www.carmax.com/articles/adas-systems-explained

[@Paul-qq7mh]

This is dangerous not safe. It is designed for impaired people and should be banned!!!!
What idiot designed this????
How would you like somebody tugging on your steering wheel whilst you're driving???
Ridiculous and stupid!!!!
Ban this immediately!!!!