on Viaducts The advantages of LVT on reducing noise and vibration has lead to its installation within areas where attenuation is required. Several kilometres of LVT slab track have been installed on viaducts in urban areas. Experience on viaducts While the longest extent of LVT is found in tunnels, which have traditionally constituted the primary environment for slab track, LVT also benefits from a diverse and substantial experience on viaducts. In Tunnels