What is the expected duration for an intermediate incident classification?

The expected duration for an intermediate incident classification typically falls between 30 minutes to 2 hours. This classification is used for incidents that require a more extended response time than minor incidents but are not as protracted as major incidents. An intermediate classification suggests that there's enough complexity or resource involvement that necessitates a structured response over a moderate period. This timeframe allows responders to effectively manage the situation while ensuring that the necessary protocols and safety measures are maintained.

In contrast, durations such as "under 15 minutes" would indicate a quick-response situation, typically associated with minor incidents, while "over 3 hours" and "2 to 4 hours" represent extended classifications more suitable for major or catastrophic incidents where prolonged management and coordination are essential. Therefore, the choice of 30 minutes to 2 hours accurately reflects the nature of intermediate incidents in terms of expected response time.