The inquiry method for the opening of four intersections in expressway is as follows: 1. Open WeChat, search for high-speed emergency service applet, then enter high-speed emergency service and select high-speed dynamic.
2. A high-speed dynamic interface will pop up to show the high-speed situation near the current geographical location, such as the green icon in the map mode display interface is in a high-speed open state and the red icon is in a closed state. List mode will display the word "open" behind the toll booth.
3. If there is no expressway in the map, you can choose to enter the province, city, expressway or site in the search box above. For example, when you enter Beijing, you will see that the icons are all green, that is, open. When you enter the Beijing-Tibet Expressway, you can see that the icon of Huinong Service Area in the expressway is red and closed.