After securing a breakdown or accident scene on an expressway, where must all uninjured riders and passengers immediately relocate to wait for emergency responders?

1. Sit on the center median barrier in the middle of the expressway
2. Remain standing in the middle of the active traffic lane to direct oncoming cars
3. Sit on the motorcycle seat inside the traffic lane
4. Quickly evacuate past the right-side steel guardrail to the safe zone outside the highway (护栏外安全区域)