Abstract
At the Great East Japan Earthquake May 11th 2011 , many peoples died by the TSUNAMI. We think that one of cause of it is on inadvisability of evacuation guidance. We are feeling the necessity for an effective evacuation guidance sound which all peoples feel necessity to escape immediately if hear it. Therefore we try to evaluate sounds to feel necessity to escape. Sin wave, Triangle wave, Saw-tooth wave, Square wave and Siren wave were evaluated as test sound. all test sound sweep 2 octave or 4 octave. The n・equency and band width were evaluated too. Scores of 'feeling of escape' of triangle wave and square wave were higher the other wave forms. Wide frequency band made to feel necessity of escape strong.
