An elevator system , comprising: an elevator drive system including a tension member supporting an elevator car under tension; and a wear and life monitoring system comprising a vibration sensor for detecting vibration of at least one of the tension member and the elevator car , and a wear and life analysis unit for determining a level of wear and life of the tension member based on the vibration of the tension member detected by the vibration sensor , characterised in that : the vibration sensor detects a vibration of the elevator car , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the elevator car ; and / or the vibration sensor detects a vibration of the tension member by detecting a vibration of one or more tension member guiding elements , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the tension member guiding elements ; and further characterised in that : the wear and life analysis unit is configured to determine the level of wear and life of the tension member by performing a spectral analysis of the vibration detected and measuring a level of frequency shift of the detected vibration relative to a reference frequency spectrum. an elevator drive system including a tension member supporting an elevator car under tension; and a wear and life monitoring system comprising a vibration sensor for detecting vibration of at least one of the tension member and the elevator car , and a wear and life analysis unit for determining a level of wear and life of the tension member based on the vibration of the tension member detected by the vibration sensor , characterised in that : the vibration sensor detects a vibration of the elevator car , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the elevator car ; and / or the vibration sensor detects a vibration of the tension member by detecting a vibration of one or more tension member guiding elements , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the tension member guiding elements ; and further characterised in that : the wear and life analysis unit is configured to determine the level of wear and life of the tension member by performing a spectral analysis of the vibration detected and measuring a level of frequency shift of the detected vibration relative to a reference frequency spectrum. the vibration sensor detects a vibration of the elevator car , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the elevator car ; and / or the vibration sensor detects a vibration of the tension member by detecting a vibration of one or more tension member guiding elements , and the wear and life analysis unit determines the level of wear and life of the tension member based on the vibration of the tension member guiding elements ; and further characterised in that : the wear and life analysis unit is configured to determine the level of wear and life of the tension member by performing a spectral analysis of the vibration detected and measuring a level of frequency shift of the detected vibration relative to a reference frequency spectrum. <EOS>