Many people have strokes each year, and quick care is very important. Sometimes, patients need to be moved from one hospital to another that has more advanced treatment options. This study looks at how to speed up this process, known as "Door-In-Door-Out" (DIDO), to make sure patients get the best care possible. The study focuses on new ways to quickly decide if a patient needs to be transferred and how to do it faster. By working with different hospitals, the study will see if these methods really help shorten the time it takes for patients to get advanced care, especially in regions far from comprehensive stroke centers.

• **Participants**: Adults 18+ with specific stroke types like AIS, ICH, or SAH.
• **Duration**: Multi-region study involving eight different hospital systems.
• **Focus**: Improving speed of patient transfers for better outcomes.