California state transportation officials failed to repair a highway safety device seriously damaged in a high-speed crash 11 days before a fatal collision in March 2018 involving a Tesla in Autopilot mode, the National Transportation Safety Board (NTSB) said Monday. In the first crash, the NTSB said the driver of a 2010 Toyota Prius was traveling in excess of 75 miles per hour (121 km per hour) when the car struck a crash attenuator, which is designed to absorb crash forces before a vehicle hits a concrete median barrier. In the second crash 11 days later, the driver of a 2017 Tesla Model X was going 71 mph (114 kph) when he struck the same attenuator on US-101 in Mountain View, California.

source https://finance.yahoo.com/news/1-california-highway-barrier-not-170208914.html?.tsrc=rss