On this wiki a hybrid methodology is described where a data-driven approach and a model-driven approach are combined to enhance model predictions of railway track displacement due to regular train traffic. All the models developed within the hybrid methodology are open-source and can be found in (Noordam & Zuada Coelho , (2021).
Model description
The numerical model consists of two parts; the dynamic train-track interaction model and the long-term cumulative settlement model.
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Figure 2 presents data measured with an accelerometer on the front axle of a moving train along one segment of the railway track. The top figure shows the velocity of the train and the bottom figure shows the acceleration of the front axle.
Figure 2. Time history of: (top) train velocity and (bottom) axle acceleration measurements.
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