Which of the following is NOT a factor used to develop an Incident Action Plan (IAP)?

The development of an Incident Action Plan (IAP) is a systematic approach that involves a range of factors to ensure that response operations are effective and organized. The correct answer indicates that traffic conditions are not typically a direct factor in the formation of the IAP.

In contrast, witnesses play a vital role in providing information about the incident, which can influence the IAP. Resources refer to the manpower, equipment, and materials necessary for addressing the incident, making them critical for planning purposes. The size-up process involves assessing the situation, determining the nature and extent of the incident, and identifying hazards, which also informs the development of the IAP.

Understanding this context highlights that while situational considerations like traffic might influence operational decisions, they do not form the core components of an Incident Action Plan itself. Thus, traffic conditions are less central compared to witnesses, resources, and size-up, which directly impact how the incident will be managed and what actions will be taken.