Greenrail s.r.l. is an Italian company that designed and patented an innovative and eco-friendly railway sleeper made up of an inner core in concrete and an outer shell obtained from a mix of recycled plastic and rubber collected from ELTs (End of Life Tires). Compared to concrete sleepers, Greenrail™ reduces the cost of maintenance of lines, contributes to reduce noise and vibration levels, and increases sleeper's lifespan. Also, it is designed to incorporate within it any type of systems such as a photovoltaic panel for solar energy harvesting, data transmission systems for the control of safety and telecommunications and many other, which makes Greenrail a revolutionary product in the railway sector.