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Performance indices

STA.SY. S.A.’s policy lays emphasis on the following four sectors:

  • Safety
  • Reliability
  • Speed
  • Customer satisfaction

The Company uses specific tools in order to monitor the targets that have been set related to these fields, i.e. the Quality and Performance Indexes presented here below:

  • Quality Indices
  • Human Resources Indices
  • Rolling Stock Indices
  • Safety Indices







Data collection and analysis, and issuance of the relevant reports are performed on a regular basis, weekly and monthly. The value of each separate index is compared to the target value (weekly or monthly) set by the company as well as to the annual variable average value. The target value for each index was set in co-operation with other European Metro networks, using a similar network and operating over a longer period of time. The convergence of the value of each index on the target value (benchmarking) confirms conformity with high operation standards.