Crashes resulting from lane departures can be among the deadliest collisions. In 2015, nearly 13,000 people died in single-vehicle run-off-road, head-on, and sideswipe crashes where a passenger vehicle left the lane unintentionally. Technology designed to help drivers avoid unintentional lane departures can prevent these crashes. Other technologies aim to keep drivers from drifting out of lanes, either by providing warnings or steering corrections when they cross a lane line without signaling or by actively centering them within their lanes. Lane departure warning (LDW) first became available in the United States on the Infiniti FX35 in model year 2005 and is becoming increasingly available on new passenger vehicles. In model year 2017, lane departure warning was available on 63 percent of new U.S. passenger vehicle series as standard (6 percent) or optional (57 percent) equipment.
The purpose of this study was to evaluate the effects of lane departure warning (LDW) on single-vehicle, sideswipe, and head-on crashes.
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