| 摘要 |
<p>Passenger traffic between a first area and a second area can be controlled using a system with a transportation device, such as an elevator, an escalator, or a moving walkway. Depending on which mode the system is operating in, the transportation device allows passenger traffic in only one direction between the two areas. Thus in a first mode, for example, passengers can move from the first area to the second area, but passengers may not move from the second area to the first area. In a second mode, the direction of the permitted passenger traffic is reversed.</p> |
