Which action can help prevent a secondary accident at an accident scene?

Protecting the area with flashers and markers is crucial for preventing secondary accidents at an accident scene. By using warning lights, flares, or other markers, drivers approaching the scene are alerted to the potential hazard ahead. This visibility helps to reduce the risk of additional collisions, as it encourages other drivers to slow down, maneuver safely around the incident, or stop altogether if necessary.

This action creates a safe buffer zone around the accident, allowing emergency responders to work more effectively while also safeguarding those involved in the initial accident. Properly marking the scene also enhances awareness among oncoming traffic, which is essential in reducing the chances of further incidents occurring.