Special Crash Investigations On-Site Crash Avoidance Technology Investigation Vehicle: 2016 Mercedes-Benz C450 Location: California Crash Date: April

The interest in this single-vehicle crash was the crash avoidance (CA) technology in a 2016 Mercedes-Benz C450. The Mercedes was equipped with a forward collision warning system that included active lane keeping assist, active brake assist and autonomous brake intervention. The on-site investigation was intended to determine what role the CA system may have played in the crash. Active lane keeping assist detects lane markings on the road and warns the driver when the vehicle leaves a lane unintentionally. If the driver does not react to the warning, a lane-correcting application of the brakes can bring the vehicle back into the original lane. Active lane keeping assist is activated in a speed range of 60 to 200 km/h (40 to 120 mph). Based on event data recorder-reported speeds, it would appear likely that the driver received a lane departure warning vibration if other conditions and requirements for system functionality were met. The crash occurred during an early morning in April 2016 on an undivided, two-lane, east/west, county-maintained roadway in California. The Mercedes was being driven westbound at a high rate of speed by a belted 46-year-old male. The other occupant in the vehicle was a belted 30-year-old male seated in the front right position. The crash occurred when the Mercedes departed the roadway on the right edge and struck several trees and a fence located on the roadside. The driver of the Mercedes sustained police-reported “K” (fatal) injuries and was declared deceased on-scene. The front right occupant sustained minor injuries and was transported to a local hospital. The Mercedes was towed due to damage, released, and sold by the insurance company in August 2016.


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Media Info

  • Media Type: Web
  • Features: Appendices; Figures; Photos; Tables;
  • Pagination: 40p

Subject/Index Terms

Filing Info

  • Accession Number: 01672398
  • Record Type: Publication
  • Report/Paper Numbers: DOT HS 812 544
  • Contract Numbers: DTNH22-12-C00271
  • Created Date: Jun 11 2018 9:50AM