Which factor does NOT affect the positioning of apparatus at a crash site?

The positioning of apparatus at a crash site is influenced by various critical factors to ensure safe and effective response operations. Time of day is not typically considered a direct factor affecting apparatus positioning in the same way that the other options do.

Wind direction plays a significant role in fire suppression and the protection of personnel by dictating the placement of firefighting equipment to avoid exposure to hazardous fumes or flames. Accessibility of the site is crucial because it determines how easily emergency responders can approach and operate at the scene, affecting both the response time and the safety of personnel. The type of crash, whether it involves an aircraft carrying hazardous materials or a larger scale debris field, specifically impacts how and where apparatus are stationed to address the unique challenges presented.

In this context, while time of day can affect visibility and possibly the urgency of a response, it does not have the same immediate and critical implications for the apparatus positioning as the other three factors.