A320
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Flight Crew Last 90 Days 150; Flight Crew Total 10000; Flight Crew Type 2500
Situational Awareness
Conflict Ground Conflict; Critical; Ground Incursion Runway
Flight Crew Rejected Takeoff; Flight Crew Returned To Gate
Human Factors
While operating flight from ATL Tower cleared us to position and wait on 9L while an RJ flight took off in front. Tower then cleared us to take off as normal. All calls were normal through 80 KTS. At about 120 KTS the Captain initiated an abort and I looked up from my scan of the instruments and saw an aircraft taxiing across the runway on Taxiway DIXIE. The abort went as per normal and I made a call to the Tower and a PA to the passengers as the Captain brought the ship to a stop off the runway at M14. We stopped at M/DIXIE Taxiways and ran through the procedures for post abort and then made calls to ground ramp and company for further guidance. After consulting with operations we were instructed to return to the gate.
A320 First Officer departing Runway 9L at ATL describes a rejected takeoff at 120 KTS when the Captain notices an aircraft crossing the runway ahead.