Teréga is committed to its policy of continuous improvement in the quality of its services and activities.
With this in mind, Teréga has been using a system of performance indicators since 2009, integrated into the transport activity regulation system.
The service quality indicators were changed with the introduction of the ATRT5 tariff in April 2013: there are now fourteen indicators, but they are still split into four themes identified as having a direct impact on the smooth running of operations for transport infrastructure users :