The provided image displays a complaints made about noise sended to the Enviromental Health government, with a timeline from 1980 to 1996 on the horizontal axes and a scale from 0 to 1400 representing number of complaints.
Overall, four graphs represents major factors of noise: road works ,factories ,traffic noise and domestic or household respectively. The road works and traffic noise shared approximatelly same pattern throughout the period, with suprising boost of road works after 1990. Meanwhile, factories experienced a steady trajectory, and domestic reasons providing downward trend.
Regarding to the equavillent graphs, at the outset, the road works counted for above 400 complaints, wherease a traffic noise received nearly 300 of them. After 1984,a parallel lines gradually dipped with 400 protests for the former and nearly 200 of letter for the latter. In 1998, both of the noise factors experienced susbstantial growth , where at the end of the period a road works records 1200 protests and a traffic noise 600 of protests.
In contrast, at the beggining factories accounted for only 400 of complaints , while a household provided quintaty of 600 grievance. Furthermore, factories remained a constant growth with the figure for nearly 800 complaints throughout all of the years. On the other hand, a domestic reasons that contributed gradually decline with reaching only 300 complaints in the mid of the illustration, and ultimately displaying nearly 0 complaints at all in 1998.