An elevator test tower is a structure usually 100 to 140 metres tall that is designed to evaluate the stress and fatigue limits of specific elevator cars in a controlled environment. Tests are also carried out in the test tower to insure reliability and safety in current elevator designs and address any failures that may arise. Examples of an elevator test tower are the Express Lift Tower in Northampton, England, and the Shibayama Test Tower in Shibayama, Japan, which is also the world's tallest at 154 metres.
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