Which of the following should be done if you are helping at an accident scene?

Setting up reflective triangles and using flashers is crucial when assisting at an accident scene because it enhances safety for all individuals involved. Using these warning devices alerts oncoming traffic to the potential hazards ahead, which helps to prevent further accidents and ensures the safety of those who may be in or approaching the accident scene. This practice is part of standard safety protocol for roadside emergencies.

While directing traffic can be helpful in some scenarios, it typically requires special training and sometimes official authorization, which may not be applicable for every individual on the scene. Parking as close as possible might compromise safety by obstructing emergency responders or increasing the risk of further accidents. Leaving the scene promptly is generally not advisable unless personal safety is at immediate risk, as it can lead to confusion and further complications in handling the situation. Therefore, properly displaying warning signals is the best way to ensure everyone's safety during such incidents.