Modern railway tracks distribute the loads from rail vehicles via the rails, rail seats and sleepers as evenly as possible. there are limitations when it comes to turnouts. points show an irregularity in regard of the vertical elasticity. mostly they are too stiff. but their elasticity can be adjusted by under sleeper pads. these last decades, rail transportation has known an amazing development notably in an urban environment through the construction of railway lines at grade, mainly dedicated to tramway operation or underground lines mainly dedicated to metro operation. in the same time the environmental impact consideration have become a crucial subject for people living alongside lines or above underground lines. the main concern is related to noise and vibrations disturbance. this disturbance has two origins: • the direct noise or vibration from the railway traffic and the noise indirectly produced by the vibration of the building walls, the so-called re-radiated noise. this is usually achieved by introducing an adequate resilient layer in the track system to provide the required attenuation. providing a vibration mitigation with the track is now commonly encountered, especially on urban projects . • the present article will present the development of a high attenuation sleeper which with an adapted resilient layer will provide a significant vibration mitigation close the highest achieved track ground borne noise attenuation, as known floating track slab. under sleeper pads are rubber pads, fitted to the underside of the sleeper. they are a very cost effective means of reducing ground borne noise and vibration. lower vibration transmission not only reduces the risk of damage to supporting and adjacent structures and alleviates noise pollution, but it also minimises the attrition of the ballast itself contributing to track maintenance cost savings. under sleeper pads consist of a very high efficiency cellular layer which is attached to the underside of the sleepers and is protected from damage caused by the ballast stones. they are used on either wood or concrete sleepers.