New headlight technology that improves safety, cuts down glare OK’d by NHTSA: How it works

Imagine having headlights that don’t blind oncoming drivers but that do a better job of showing what’s up ahead, hopefully cutting down on crashes and saving the lives of people both in and out of vehicles.

That’s what a vehicle safety rule given the green light by federal regulators aims to do, and one that automakers, safety advocates and others are cheering.

The National Highway Traffic Safety Administration announced a final rule on Tuesday to make new headlight technology, known as adaptive driving beam headlights, legal in the United States. The rule, which follows a years-long process of information-gathering and discussions on the topic, amends the current federal regulation related to headlights to allow the technology and make sure it operates safely. 

The technology, which can use “advanced sensors, data processing software and headlamp hardware,” to improve how headlights illuminate roads, other vehicles, objects, animals and pedestrians, has been legal elsewhere, but now it’s on track for use on new vehicles in the United States.

That could be key as the United States grapples with increasing crash fatalities, particularly among pedestrians and bicyclists. Road deaths, for instance, hit 38,680 in 2020 and could go higher for 2021 when the numbers are finalized, according to federal government data.

Steven Cliff, NHTSA’s deputy administrator, said the agency is making the change for headlights to improve safety and protect vulnerable road users.

“NHTSA prioritizes the safety of everyone on our nation’s roads, whether they are inside or outside a vehicle. New technologies can help advance that mission,” Cliff said in a news release.

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Michael Brooks, chief operating officer and acting executive director for the nonprofit Center for Auto Safety, said the new technology is key because it doesn’t require driver action and it also addresses the outsized role that night driving plays in crashes.