What type of warning should be provided to roadway workers about approaching trains?

Providing sufficient time for roadway workers to move to a Point of Positive Stopping (PPOS) and remain there for at least 15 seconds is critical for ensuring their safety in the presence of approaching trains. This option focuses on proactive measures that prioritize the safety of the workers by allowing them adequate time to react to the potential danger.

Establishing a PPOS involves creating a designated safe area where workers can avoid hazards posed by trains. By ensuring that they remain in this location for a specified duration, such as 15 seconds, it minimizes the risk of injury in the event a train unexpectedly approaches. This practice reflects a careful consideration of both response time and safety protocols, which are essential components of the Roadway Worker Protection Program.

Other options do not offer the same level of proactive safety measures. For instance, general announcements or radio communications may not adequately equip workers with the time needed to reach a safe zone, nor do they address the need for a visual acknowledgment of their surroundings. Standard procedure warnings limited to training scenarios also fail to encompass the real-time hazards that workers face on the job site.