|Application||Position control when remotely placing and releasing traffic signs|
|Detected data||Upper and lower limit positions of signs|
|Effect||Prompt operations of installing traffic signs prevent secondary disasters.|
In the event of an earthquake, the expressway gates will be immediately closed by remotely setting up "No Entry" signs to prevent secondary disasters. After confirming safety, the signs are quickly returned to their original positions as the road closure is lifted to minimize traffic congestion.