For example, Schultz (1978) synthesized the results of social surveys conducted in several
countries with different number of steps in annoyance scale. Highly annoyed (upper 27~29%)
population was surveyed [2]. Kryter (1982) and Miedema et al. (1998) proposed different
annoyance model according to noise sources [7~8]. Fine gold et al. (1994) have updated adding
new data to data used in 1978 Schultz curve [2] and the relationship between percentage of
awakening and noise level based on meta-analysis about eight field studies [3]. Miedema et al.
(2002, 2003) investigated %HSD (percent highly sleep disturbed) from 3 different noise sources
(aircraft noise, railway noise and road traffic noise) and aircraft noise induced probability of
awakening and motility model was proposed through analysis of actimeter (with event marker)
data