Vibration specific ride comfort of a vehicle on an urban street was evaluated by the psychological response of test subjects with the use of adjectives, while adjusting damping force of the damper. The test results indicate the vibration specific ride comfort can be measured by the psychological response of a passenger. The vibration specific ride comfort can be defined by a feeling of luxuriousness, feeling of being heaved, and feeling of being jabbed. Also, the vibration specific ride comfort is impaired by a bumpy feeling caused by the vibration coming from stiffened dampers.
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