Final answer:
The practice of positioning emergency vehicles to protect responders and minimize traffic disruption is called safe-positioning.
Step-by-step explanation:
The practice of positioning emergency vehicles to protect responders performing their duties, protest road users traveling through the incident scene, and minimize the disruption of the adjacent traffic flow is referred to as safe-positioning. It involves strategically placing emergency vehicles in a way that creates a buffer zone between the incident and the traffic, ensuring the safety of responders, road users, and maintaining traffic flow.