The accident took place at 7 a.m. near the Ümraniye district on Istanbul's Asian side.
A driver crashed into the snow removal team alongside snow ploughing vehicles after losing control in the icy conditions.
Health teams dispatched to the scene found that three workers had died at the scene of the accident. The killed staff members were identified as Alican Gürkan, Selahattin Karaman and Abdullah Ceylan.
After a survey by crime scene investigation officials, the bodies were taken to the morgue at the nearby Ümraniye Training and Research Hospital.
Istanbul police have opened an investigation into the collision.