In order to respect to the full the quality of your environment, the buses are checked regularly with higher criteria than those laid down by the EU.

We make use of the necessary means for detecting trains that produce vibrations. These trains are withdrawn from service in order to repair them.

In acquiring new buses the maximum decibel level is guaranteed, that is, 60 internally and 78 externally. Likewise, as regards emissions the standards laid down by the EU are borne in mind.

We are researching and testing new alternative fuel methods to care for the environment.

We have begun to change the type of fuel (gas-oil C) used in the boilers at our newest installations to natural gas. This change, which we will extend to our heating and drinking-water installations, will greatly reduce atmospheric pollution from the boilers

In line with our policy of continual improvement, we have plans to carry out an exhaustive analysis of how environmental regulations are being met.