| 摘要 |
<p>PURPOSE: A median strip door device for U-turns on a road is provided to facilitate to be opened or closed without hindering the movement of vehicles. CONSTITUTION: A median strip door device (10) for U-turns on a road comprises a plurality of door bodies (12,14,16,18), a plurality of joint members (22), and a lift post device (110,120). A joint member interconnects the door bodies and firmly fixes the door body to the surface of a road. The lift post device rotates or lowers a plurality of door bodies in a vertical upward direction or a vertical downward direction to open or close a median strip.</p> |
