The tipper driver entered the live road through an unauthorized access point instead of the approved route. The driver did not fully apply the Stop-Check-Go principle before entering the live traffic area. Traffic control measures at the access point were inadequate, including insufficient signage, speed control, and vehicle marshalling. Planned traffic management controls discussed during the toolbox talk were not effectively implemented or verified in the field. The risk assessment did not adequately identify vehicle interaction hazards and line-of-fire exposure at the road junction.