Medium Large Transport; Low Wing; 2 Turbojet Eng
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Situational Awareness
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Clearance
Flight Crew Returned To Clearance
Human Factors; Procedure
We were descending into DTW on the VCTRZ1 RNAV arrival. After passing the fix SEEGR; DTW approach queried our airspeed. I was still indicating 250 kts. DTW asked if we were assigned that speed. I told him we were not. He assigned a new speed and told us were expected to be at 210kts at SEEGR. I slowed to the assigned airspeed. The flight continued normally.DTW approach started assigning us altitudes below the published altitudes on the VCTRZ1 RNAV arrival. I think we given the clearance to descend to 8000; before we had passed HYZMN. I slowed to 250kts before descending below 10;000. We were cleared to 6000 before SEEGR. I assumed we would be receiving vectors for a short approach. I was expediting down to the assigned altitude in anticipation of a turn to a base leg for a visual approach. I neglected to slow to 210 kts at SEEGR. This is a new arrival at DTW. This was the first time I had flown this arrival. I should have recognized those threats. I should have paid more attention to the arrival instead of anticipating the next clearance from DTW.
Air carrier Captain reported exceeding a speed clearance on an unfamiliar STAR into DTW.