Authority is the foundation of a safety policy.
Communicating the safety policy to all personnel is info-sharing. Info-sharing is critical to an airport or airline to gather intelligence for the discovery of safety critical information. Without a safety policy in place, and a safety policy that is approved at the organizational policy level, either an airport or airline have the authority to promote safe operational processes. An undefined, or unwritten safety policy does not delegate to any persons the authority to implement safety promotions.
Without a safety policy an airport or airline do not have tool to develop processes to improve effectiveness and safety. Any on-the-fly process is not a tool for continuous improvement to further improve safety within an organization, or to establish a confidence level of safety performance. Safety improvements are not achieved by improvisations of processes, but by the safety authority to document, prepare, test, assess and implement.
The safety policy is communicated to all personnel as a link in a chain of all safety policies to be shared within other organizations. Safety improvement is not an independent task, but an info-share task between airports and airlines to improve safety without the loss of life of equipment. Sharing of the safety policy within an organization and ensuring that all are aware of their safety obligations is a
Cost-factors are results of safety parameters.