Which of the following is a criterion for a significant incident?

A criterion for a significant incident often involves the rerouting of traffic. This is indicative of a situation that has escalated to a point where the normal flow of traffic needs to be altered due to safety concerns or potential hazards. When traffic is rerouted, it typically signifies that there are serious implications related to the incident, whether due to the scale of the emergency, potential danger to the public, or the need for immediate response from emergency services.

In contrast, minor leaks without media interest and incidents involving no personal injuries generally do not meet the threshold for a significant incident. These situations are often managed with minimal disruption and may not require extensive resources or the involvement of multiple agencies. Routine maintenance of equipment is also not considered a significant incident, as it is a planned and controlled operation that does not pose a risk to public safety or transportation systems. Therefore, the rerouting of traffic serves as a clear indicator that an incident is serious enough to warrant attention and response.