What is the purpose of using reflective triangles on a disabled truck?

The use of reflective triangles on a disabled truck serves a crucial safety purpose by warning other drivers of potential danger ahead. When a truck is disabled on the road, it presents a hazard to other vehicles that may not be expecting to encounter an obstacle. The reflective triangles are designed to be highly visible, especially in low-light conditions or adverse weather, thus alerting approaching drivers to slow down and navigate carefully around the disabled vehicle. This visibility is paramount in preventing accidents and ensuring the safety of both the driver of the disabled truck and other road users.

The other options relate to aesthetic or operational aspects that do not primarily address the core function of reflective triangles in the context of roadside safety. Making the truck visually appealing, marking a parking area, or signaling for assistance do not convey the same essential safety message to others on the road. The primary intent remains focused on enhancing awareness and reducing the risk of collisions.