Train passengers will soon have option of travelling in a new class of 'Economy AC coaches' with fares less than normal 3AC tariff. The proposed fully AC train will have three-tier Economy AC coaches besides AC-3, AC-2 and AC-1 classes as part of the transformation exercise. An added feature would be automatic doors.<br/><br/>A senior Railway Ministry official said that there will not be any chilling effect like in other AC classes and the temperature will be fixed around 24-25 degrees. He said, the aim is to make the passengers comfortable and not them feel the outside heat. <br/>However, He said the details of the Economy AC class are to be worked out before deciding for manufacturing such coaches. <br/>The railways is exploring an idea to introduce fully AC trains in select routes, aiming to provide comfort by facilitating AC travel for maximum passengers.