Final answer:
True, an orange sign means that drivers need to be alert and ready to adjust their speed or stop if necessary, primarily in construction zones or where driving conditions have changed.
Step-by-step explanation:
The student's question pertains to traffic signs and their meaning. The orange color on a traffic sign typically indicates that the driver should be alert and cautious, often because the sign is signaling a construction zone or a change in driving conditions. In such circumstances, adjusting speed and being prepared to stop if necessary are critical for safety. Therefore, the statement "An orange sign means drivers should be alert, adjust their speed and be prepared to stop if necessary" is true.
Examples of scenarios where an orange sign might be posted include road work ahead, a sudden change in the road layout, or the presence of workers near the roadway. In each case, the orange sign serves as a visual cue to drivers, prompting them to slow down and pass through the area with extra vigilance. Beyond maintaining driver and pedestrian safety, traffic signals also play a crucial role in managing traffic flow and reducing accidents at intersections. Signals enforce orderly traffic patterns and provide clear indications when it is safe to proceed, turn, or stop.