Cessna Citation Mustang (C510)
Air Traffic Control Developmental
Communication Breakdown; Human-Machine Interface; Situational Awareness; Training / Qualification
ATC Issue All Types; Conflict Ground Conflict; Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Weather; Human Factors
I was training Local and Ground combined. Airport was IFR with snow removal in progress. OS [Operational Supervisor] handed me an updated list of NOTAMS for field conditions. An opposite direction arrival to Runway 21 was coordinated and approved by me. Aircraft X was approximately 20 miles north of the field. I concentrated on updating the IDS-4 [Information Display System] and did not check the radar scope as I should have. I am still learning to adapt to IDS-4 requirements of my new facility. No one in the tower pointed out to me the position of the inbound aircraft. Aircraft X checked in on a 6 mile final. I had to scramble to get vehicles off of the runway. Aircraft X really should have been sent around. Personnel in the tower at the time. OS on CIC. Training on TRCAB. Controller monitoring between me and TRCAB. OJTI plugged in with me. Total persons including myself 6. This situation was allowed to develop to prove a point to me. While I do allow conditions to develop so trainees can learn; with the weather and vehicles on the runway; this was too dangerous of a situation to allow this to happen. I do take responsibility for not checking the radar; but at the minimum the supervisor should have said something to keep the operation safe. Stress the importance of tower team concept. Describe when it is appropriate to allow situations to develop and when it is not. This should be included in some type of training such as recurrent training.
Tower Controller reported rushing to clear the runway of vehicles for landing traffic while training.