Explain difference between Ambulance Transport vs. Air Medical Transport

Problem- While conducting a quantitative study, define two or three variables related to research on the risks and benefits associated with patient outcomes based on air medical transport versus ambulance transport.

Part 1- Select a quantitative research design that one might consider for their research.

Part 2- Discuss the rationale for the selection of the research design for the study.

Part 3- Find at least two peer-reviewed journal articles related to that research design to support the choice.

I need help to differentiate air medical transport vs. ambulance transport and describe the appropriate research design for a study on analyzing the patient outcomes based on ambulance transport versus air medical transport.