Traffic Hazard (T1-10)The Traffic Hazard (T1 10) sign is used to warn motorists of potential dangers or unexpected hazards ahead on the roadway. This sign is essential for roadwork, construction, and traffic management projects, providing clear advance warning to help drivers slow down and navigate safely. Manufactured from yellow CL400 Class 1W reflective material, the T1 10 delivers maximum visibility during the day, at night, and in poor weather conditions, ensuring