What is the safest method to signal for help after pulling off the road in an emergency?

Setting up flares or reflective triangles is the safest method to signal for help after pulling off the road in an emergency because these items are specifically designed to alert other drivers to your situation. Flares emit bright light and can be seen from a distance, especially at night or in poor weather conditions. Reflective triangles, when placed at appropriate distances behind your vehicle, create a visual warning that can help prevent further accidents by alerting oncoming traffic to your presence.

These options are more effective than simply waving a flag, which may not be easily seen by drivers, especially from a distance. Using your horn and shouting for help are less effective methods, as they may not draw adequate attention from passing vehicles. Vehicle safety techniques emphasize the importance of visible and clear signals to ensure both your safety and the safety of others on the road.