This study collected and reviewed the measurement results of traffic and environmental noise from environmental protection departments each quarter. The percentage of qualifying intervals of environmental noise level was above 90% in first three quarters of 2011, so it would achieve the yearly target. To realize the cause of the disqualifying station, thirteen stations were inspected in situ and speculated the possible source of noise in the scene. To acquire the noise distribution in the vertical direction along the urban roadside, the measurement were undertaken in two buildings where the sound level meter were installed at floor one to floor 3. Traffic flows were also recorded at the same time. The results of measurement met the traffic noise standards of noise category-3 and category-4 zone. The difference between the floors were about 1dB(A) which was similar with the calculated noise results from noise prediction software. This study collected the announcements of all counties and cities, integrated the content. The noise control ordinances pursuant to Article 8 and 9 of the Noise Control Act that announced by local governments gradually narrowed the gap. Ten noise measurement spots around a factory were conducted and then proposed the draft of annual repair background noise monitoring plan and verification procedure. This study collected the domestic and foreign traffic noise and environmental noise standards and control or improvable measures, and proposed the draft of noise control and reduction measures. In addition, this project had assisted in the control operations of noise-related science group projects to make their benefits meet the operation and performance requirements of the National Science Council.

traffic noise