The two-vehicle crash occurred at the intersection of State Highway 1 and Robertson Rd at 6.10am.
Hato Hone St John and police attended the incident 20km north of Oamaru. One driver was airlifted to Dunedin Hospital and another car occupant was taken to Oamaru Hospital.
The farmer, who wished to remain anonymous, said the accident was just one of many that had occurred involving students from the New Zealand Airline Academy (NZAA), which is based at the airport.
"As a neighbouring farmer, we’ve had enough. We are sick of repairing fences both on the airfield and Robertson Rd," the farmer said.
"This particular crash they’ve came straight off the highway and they ended up going straight through a ... bus stop where all the kids are standing. There are skid marks everywhere."
The farmer said there had been "multiple car crashes" on the airport grounds and he had personally witnessed hazardous driving.
"Someone drove through a stop sign at the same intersection, straight in front of me about two months ago and we’ve repaired several fences the students have crashed into, including on the airport runway."
NZAA had not taken ownership over safety issues at the airport including a lack of accountability for students’ "incompetent driving" , they said.
Sergeant Blair Wilkinson, of Oamaru, said it appeared one of the vehicles had pulled to the left-hand side to allow vehicles travelling north to go past, before making the turn into Robertson Rd, but failed to see a vehicle and turned into the northbound vehicle’s path.
Sgt Wilkinson said an investigation was under way.
Based at the Oamaru Aerodrome, the NZAA is one of New Zealand’s leading pilot-training schools, and international student numbers have risen from 92 in January last year to 172.
Co-director Celroy Mascarenhas confirmed an NZAA student had been airlifted to Dunedin Hospital.
He said while the flight school took measures to ensure road safety with students going through an "authorisation process" before being able to drive a company car, the student involved in the recent crash had been driving a private vehicle.
"We’re in an unfortunate situation where the rules are that we can’t stop someone from going and buying a car and driving it on their overseas licence."
Students needed to pass a road code test and demonstrate safe driving before they could drive company vehicles, Mr Mascarenhas said.
Mr Mascarenhas said they had taken the complaints seriously and had taken action by terminating the enrolment of two students regarding the damage to fences on the airport grounds.
He said they had introduced a "strict policy" in May this year that a student’s enrolment could be terminated for any "rash or dangerous driving".
"I understand the complaints, but it’s the same as any other city, school or university.
"These problems are not caused by the flying school, and we’ve got little control over what people do with their money and licences."
Mr Mascarenhas said their focus was now on the recovery of their student and next steps would be determined after the police investigation.
