Medium Large Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 6
Situational Awareness; Human-Machine Interface; Distraction; Confusion; Time Pressure
ATC Issue All Types; Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Human Factors; Procedure
Aircraft X was an arrival to Runway 35 and approaching the Arrival Departure Window (ADW). Aircraft Z was holding in position on Runway 30L while the previous arrival exited the runway. Aircraft Y was on final to Runway 30L. I was training a Certified Professional Controller - In Training (CPC-IT) on LCS/LCW [Local South/Local West] when the event occurred. When Aircraft Z was cleared for take-off; Aircraft X was outside of the Runway 35 ADW; however by the time they began departure roll Aircraft X was inside of the ADW. We were unable to wait for Aircraft X to exit the ADW because of traffic on final to Runway 30L. The coordinated spacing for arrivals to the airport does not work; nor does it provide any way or time to predict when a pilot will delay their departure roll; often resulting in an ADW violation. We have also been told not to take any action to re-acquire appropriate separation by sending an aircraft around since the error has already occurred. My recommendation would be to suspend Converging Runway Operations (CRO) operations at MSP until the whole situation can be reevaluated and a better arrival spacing plan worked out.
Minneapolis Tower Controller reported that an aircraft was cleared for takeoff when an aircraft was outside the Arrival Departure Window (ADW). Departing aircraft delayed and arrival entered the ADW and was not sent around.