SUBJECTIVE AND OBJECTIVE EFFECTIVENESS OF NOISE PROTECTION DEVICES AND THEIR SIDE EFFECTS ON FRONTAGERS

UNTERSUCHUNGEN UEBER DIE SUBJEKTIVE UND OBJEKTIVE WIRKSAMKEIT VON SCHALLSCHUTZEINRICHTUNGEN UND IHRE NEBENWIRKUNGEN AUF DIE ANLIEGER

THE INTENTION IS: (1) TO DETERMINE AND COMPARE THE SUBJECTIVE EFFECTIVENESS OF VARIOUS NOISE PROTECTION DEVICES; (2) TO DETERMINE POSITIVE AND NEGATIVE SIDE EFFECTS OF VARIOUS WAYS OF PROTECTING AGAINST NOISE; (3) TO COMPARE AND EVALUATE THE COMPLETE PICTURE OF ACOUSTIC AND NON-ACOUSTIC EFFECTS OF VARIOUS NOISE PROTECTION MEASURES ON FRONTAGERS, AND (4) TO DETERMINE THE LONG TERM EFFECT OF NOISE PROTECTION MEASURES. THE WORK WILL BE DIVIDED INTO TWO SECTIONS. THE FIRST IS A SMALL PRELIMINARY STUDY TO CLARIFY THE BEST METHODOLOGY AND TO DETERMINE ALL THE QUALITATIVELY RELEVANT ASPECTS. THE SECOND AND LARGER PART IS CONCERNED WITH (1) EXACT DETERMINATION OF THE EFFECTS AND SIDE EFFECTS AFTER CAREFUL SELECTION OF AREAS TO BE STUDIED, AND (2) DETERMINATION OF LONG TERM STABILITY OF THE EFFECTS WITH TIME.