Medium Large Transport; Low Wing; 2 Turbojet Eng
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 1
Situational Awareness; Confusion
ATC Issue All Types; Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Clearance; Ground Incursion Runway
Air Traffic Control Issued Advisory / Alert; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Rejected Takeoff; Flight Crew Requested ATC Assistance / Clarification
Airport; Human Factors; Procedure
I taxied Aircraft X to Runway 1 via Juliet to hold short of Runway 4. Upon taxiing Aircraft X said they could depart Runway 33 if it meant they would have an earlier departure. I then taxied Aircraft X to Runway 33 via Foxtrot to hold short of Runway 1. I then told Aircraft X to cross Runway 4 and monitor tower on the other side. At that time Aircraft Y was just starting departure role on Runway 1. Aircraft X started to cross Runway 1. I was alerted when the Local Control and Local Control Assist started yelling and I immediately yelled for Aircraft X to hold short of Runway 1. By then Aircraft X had already crossed the hold short line for Runway 1 causing Aircraft Y to abort takeoff.
[Report narrative contained no additional information.]
DCA Ground Controller cleared an aircraft to cross a runway that another aircraft was beginning its takeoff roll on.