Occupants of a nearby building feel and hear a shuddering like a sonic boom just prior to a impact. A semi truck travelling westbound on I-90 attempted to swerve to avoid collision with another vehicle when the airbrakes engaged. The truck shuddered along the freeway, slid and then rolled over coming to rest in a position in the median facing back in the opposite direction. The driver was able to leave the cab of the truck and walk away, visibly shaken.
