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Motorcoach Accident Investigation

Investigation into a motorcoach accident involving reduced visibility and traffic backup. Analysis of driver's performance, safety issues, and parties involved.

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Motorcoach Accident Investigation

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Presentation Transcript

  1. Introduction David S. Rayburn

  2. Motorcoach Driver and Witness Statements • Motorcoach traveling 65 mph in posted 70 mph zone • Driver reduced speed to 60 mph • Witnesses stated rain reduced visibility to ½ mile or less

  3. Witness Statements • About 9:30 a.m. an accident occurred, causing traffic to back up • Traffic not visible until crest of hill • Traffic queue estimated 350 feet north of beginning of skid marks

  4. Motorcoach Driver Information • 58 years old • Valid CDL and medical certificate • 23 years’ commercial vehicle driving experience • No alcohol or performance-impairing drugs • Off duty for 3 days preceding accident • On duty for 2.75 hours at time of accident

  5. Motorcoach Driver’s Performance • Traffic queue visible 767 feet ahead • Heavy rain may have reduced the visibility further • 2.0 to 2.3 seconds to detect traffic, decide what to do, and begin braking • AASHTO utilizes 2.5-second perception reaction time

  6. Safety Issues • Sight distance and speed • Roadway and tire friction interaction • Effect of differing front and rear tire tread depths • Wet weather accident location identification

  7. Parties to the Investigation • Texas Department of Transportation • Texas Department of Public Safety • Motor Coach Industries • Central Texas Trails, Inc.

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