Approach on the survey method for sound environment in underground spaces

In high density cities underground spaces are rather common. In this study the sound environment survey method in underground spaces has been explored, aiming at finding out the relationships among the environment, space, people and sounds in such spaces, as well as their similarities and differences with urban open spaces. Based on the concept of Likert scaling, questionnaires and interview methods have been designed. Using the methods, soundscape surveys have been carried out in ten underground shopping streets in Harbin, China, considering both staff and customers. By analysing the results, the reliability and validity of the method are examined.