Education department statistics show drivers of school buses with New York City contracts were involved in 1,700 accidents in which the driver was at fault in each of the past five years.
The incidents ranged from fender-benders to collisions.
The Amalgamated Transit Union Local 1181 went on strike last week after reaching an impasse with the city over job protection.
The union disputed the DOE’s tally. Carolyn Daly, a spokeswoman for a coalition of several the private bus operators, told media most of the incidents were not the fault of school-bus drivers and involved minor accidents without children on board.
The ATU said its drivers were more than qualified.
The bus strike enters its fourth day Tuesday.