抄録
In this paper, construction logic of a man/machine safety work system is presented. Especially in a system where the human and machine cooperatively work on the time axis, safety assurance requires the human and machine to maintain different positions or states. A control of this positional relationship or state change is defined as block section control. In Chapter 3, the safety of the platform door system composed of train doors and platform doors is discussed. These systems are characteristic in that it has two or more safe areas and that its hazardous area change to safety area. The concept of the man/machine safety work system is applied to the station platform door system, and the conditions for assuring the safety of the control the station platform door system are derived.
