Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Situational Awareness
Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Executed Go Around / Missed Approach
Company Policy; Human Factors; Procedure; Airport; Weather
Aircraft X was inside of a quarter mile final on the ILS Runway 31C approach. I turned around for a second to tell the supervisor about the visibility getting better on final when the supervisor noticed an airport vehicle going onto Runway 31C. At that point I issued a go around to the aircraft and to climb and maintain 3;000 ft. MSL and turn right to a heading of 110. I also let the aircraft know the reason of the go around. They were able to respond in time and were re-sequenced for another approach and landed without incident. I understand it was snowing and airport markers are difficult to see. I suggest airport vehicles be more vigilant of their position on the airport before moving anywhere. Driver refresher course recommended.
ATC approach controller reported issuing a go-around clearance to an aircraft on short final due to a vehicle reported on the runway.