3.1 A pre-hospital plan is a continuously evolving mental plan of action that the PHR team will make as soon as they are activated, using the information given by the tasking agency. In many cases, this initial information is vague or incomplete, which reflects the problems experienced when receiving early phone calls about an incident. Although making a plan prior to arrival with limited information has drawbacks, there are clear benefits in arriving at the incident with a strategy for scene and patient management already in place. The plan often develops as the team travels to the scene and therefore valuable time en route should not be wasted.