Trees to mitigate induced railway vibration

摘要: The railway system as means of transportation is experiencing a large growth globally because of its sustainability. One main drawback that could slow down this extension of the railway traffic is the vibration that is generated at wheelrail interaction and propagates through the transmission path right up to the nearby building's foundations and affecting negatively the daily life of the residents. Different mitigation measure already exists in the field, yet some of them present high costs and others are not in line with the sustainability wanted from this means of transport [1-2]. Therefore, the use of nature could be the right compromise in order to make rail transport even more sustainable and attract new investors. This research focuses on a brief implementation of the so-called natural metamaterials integrated within a validated numerical approach based on the two-step approach in order to mitigate the induced vibration generated at the rail-wheel interaction. Results are shown for the vibration time history in order to have the first outputs of the levels of attenuation which could be reached with the use of trees as mitigation measures within the transmission path.