The line graph illustrates the quantity of noise complaints submitted to the Environmental Health authorities in the city of Newtown from the year 1980 to 1996, categorized by source.
Overall, it is evident that the complaints regarding Road Works have experienced a significant upward trend over the period, while those associated with Factories have markedly decreased. Additionally, Traffic Noise complaints demonstrated a general increase, whereas Domestic complaints followed a downward trajectory.
Focusing on the category of Road Works, complaints rose dramatically from 200 in 1980 to 1300 by 1996, exhibiting a consistent increase with just one decline in the years 1984-1986. Notably, the figures surged from 600 in 1986 to 800 in 1988, marking one of the most considerable increases. In comparison, complaints related to Traffic Noise showed a gradual increase from 300 complaints in 1980 to 950 in 1996, illustrating a steady gain despite fluctuations in the earlier years.
Conversely, the data for Factory-related complaints highlighted a stark decrease from 600 in 1980 to a mere 140 by 1996, with the most substantial drop occurring in the years 1980 to 1986. Similarly, Domestic/household complaints experienced a decline, starting at 740 in 1980 but declining to 50 by 1996. The downward trend in these two categories contrasts sharply with the upward trajectory of Road Works and the modest growth of Traffic Noise complaints, thereby revealing diverse public concerns throughout this period.