The orange-colored triangle-shaped sign on a truck typically indicates that it is carrying hazardous cargo. This sign is a warning to other drivers and emergency responders about the potential dangers associated with the materials being transported. It is crucial for everyone on the road to be aware of such cargo to ensure safety and proper handling in case of an emergency.
In summary, the presence of an orange-colored triangle-shaped sign on a truck signifies that it has hazardous cargo onboard, and extra caution should be exercised when sharing the road with this vehicle.