Abstract
The last years, ground vibrations have become an important suty field due to the increase of the transport needs for society and its amount of running trains associated. The vibrations caused by trains are an important comfort and environmentally problem affecting more people every day. This is an experimental paper which compare the vibrational response of the different sleepers disposed on the line. The section presents different sleepers due to a recent actuation to solve instability phenomena. The vibrations measured on site allow to know better how influent is the different materials on the vibrational behavior of the track
