1. Stand by and wait for the road to be clear: If the road closure is only temporary, people inside can choose to stay in vehicles or surrounding buildings and wait for the road to be clear. They can use the food, water and other resources stored in the car and wait patiently for rescue.
2. Find alternative roads: If there are other feasible roads to choose from, people who are blocked can consider finding alternative roads to bypass the closed area. This may require some knowledge of navigation and maps, as well as adequate fuel and vehicle maintenance capabilities.
3. Ask for help from rescue agencies: People who are blocked can ask for help from local rescue agencies or relevant departments through emergency calls or other means of communication. They can report the location and situation where they are trapped and ask rescuers to arrive as soon as possible.
It should be noted that the specific countermeasures may vary according to the situation, and these measures can only provide some basic ideas. In the actual situation, decisions should be made according to the specific geographical conditions, climate conditions and rescue resources. If you have any questions or emergencies, please contact the local rescue department immediately.