At 0438 hours, Rescue Squad 14 was alerted to northbound I-95 at I-495 for the personal injury accident with reported one trapped.  Rescue Squad 14 arrived to find one trapped in an SUV that was involved in a collision with a tractor trailer.  The squad crew stabilized the vehicle, removed the driver's side doors and B-post, and cut off the roof.  Extrication was completed quickly and Rescue Squad 14 was ready at 0500 hours.