Special Crash Investigations On-Site Guardrail End Terminal Investigation; Vehicle: 2001 Buick LeSabre; Location: Missouri; Crash Date: March 2017

This report documents a passenger vehicle crash to a Sequential Kinking Terminal (SKT) guardrail end terminal that is of interest to the Federal Highway Administration (FHWA). This crash occurred in a rural area on the north side of a two-lane undivided state highway. The Buick LeSabre was equipped with an event data recorder (EDR); however, the EDR was damaged during the crash and could not be imaged. An unbelted 36-year-old male driver and a belted 33-year-old female front row passenger occupied the vehicle. The Buick was traveling in the eastbound lane in a right curve. As the driver attempted to negotiate the curve, the vehicle drifted left into the westbound travel lane. The driver counter-steered right in an attempt to regain the eastbound lane. As the Buick reentered the eastbound lane, the driver steered left in an attempt to regain directional control of the Buick. The left steering maneuver initiated counterclockwise yaw as the Buick traversed the westbound lane. The vehicle departed the left (north) side of the road and the right plane struck the guardrail end terminal (Event 1). The impact resulted in deployment of the front row passenger’s seat-mounted side impact air bag. The vehicle damaged the guardrail and rotated clockwise as it separated from the guardrail and traveled down an embankment. The left plane struck a 28 cm (11.0 in) diameter cedar tree (Event 2), rotated clockwise around the tree, and then came to final rest facing in a northeast direction. The front row right passenger was pronounced deceased at the crash scene. The driver sustained police-reported “B” (non-incapacitating) injuries and was transported by ambulance to a hospital where he was treated for his injuries and released. The vehicle was towed from the crash scene due to damage.


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Media Info

  • Media Type: Web
  • Features: Appendices; Figures; Photos; Tables;
  • Pagination: 26p

Subject/Index Terms

Filing Info

  • Accession Number: 01736569
  • Record Type: Publication
  • Report/Paper Numbers: DOT HS 812 903, IN17014
  • Contract Numbers: DTNH22-12-C-00270
  • Created Date: Apr 21 2020 10:41AM