Fundamental to being able to administer and control turnout
operations is, in the first place, recognition of the system, its con-
figuration in a particular municipality and where system limits
are set.
Once the system has been identified and the limits established,
it is necessary to determine the technical and personnel resources
the system has at its disposal. Here it is necessary to determine
what the system can manage and what types of situations it is
expected to work in; in addition some form of analysis or assess-
ment of the primary risk situation is required. System limits define
the scope of the total responsibility with regard to, in this case,
turnout services.Dimension Scope of the dimension
Function What is the object of the system?
What is the purpose?
Whose interests shall it protect?
How is the quality of the system judged?
Resources What facilities does the system have at its disposal to meet
its obligations?
Environment What circumstances does the system need to adapt to?
Measures What activities are carried out within the system?
What is the purpose of each of these activities?
How does the purpose of these activities align with the
goals of the total operation?
How is the quality of the activities judged?
Does the quality align with that applicable to the total
operation?
Ledning How is the system controlled?
How are resources distributed to the activities and by whom?
How is the operation adapted to suit changes in internal and
external conditions?Dimensions to take into
account when defining
a system. From Agrell
(1988).