Monitoring and Identification of Vibration Frequencies on a Portion of México City Metro Line 12

<div>(a) Acceleration signals from 2012 to 2018; monitoring started in 2015. (b) Average identified frequencies and corresponding standard deviation from 2015 to 2018 based on N4SID and MOESP identification methods.</div>

Advances in Civil Engineering

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Figure 5

Figure 5: Monitoring and Identification of Vibration Frequencies on a Portion of México City Metro Line 12 