On 8 August 2019, an Embraer 190 crew taking off from Comodoro Rivadavia in accordance with their clearance saw a vehicle crossing the runway ahead but based upon its distance away and speed judged that continued takeoff was safe and this then occurred. The vehicle was not authorised to cross the runway. The conflict risk was assessed as heightened by ATC use of a discrete frequency for communications with airside vehicles thereby reducing the situational awareness of both pilots and vehicle drivers. It was also noted that absence of vehicle read backs to ATC instructions was common and went unchallenged.