The monitoring measurement and control of traffic noise and vibration (NV) is one important work to maintain the tranquil life and habitancy quality alongside various traffic systems. For the purpose of effectively monitoring and managing the noise generated from freeway, highway, mass rapid transportation (MRT), high speed rail transportation (HSRT), common railway and aviation, the aim of the project encompasses the following works:
1.The NV monitoring measurements at a number of noise-sensitive sites and noise-complaint sites to understand the around status of the ground-borne traffic noise problem.
2.Cause analysis of the noise complaints from ground-borne transportation systems.
3.Information collection regarding rules, standards, specifications of the control measures for traffic noise for the purpose of reviewing and revise the existed related ones.
4.Survey the aviation noise monitoring centers or monitoring stands to raise the monitoring quality of aviation noise.
5.Update the database of the protection subsidy for aviation noise.
From the works conducted in this project, the following results and suggestions can be forwarded:
1.Complete the 24 hours monitoring measurements and cause analyses of 60 noise-complaint measuring points and 6 hours monitoring measurements of 20 vibration sensitive points. Among the 60 noise measuring points, there are 34 points pertaining to 9 sites of complex traffic noise problem, and 26 points pertaining to the problem of single traffic system.
2.According to the reply documents from each domestic city or county government, the traffic noise-complaint events happened in last year have summed up to an amount of 33. in which, the noise improvement plans (NIP’s) for 6 complaint events are approved and undertaken the noise improvement accordingly the NIP’s of 14 complaint events are still in the process of approval review yet, one complaint event does not submit the NIP yet, and the monitoring results of 13 complaint events are complying with the Noise Control Standards of the Land Transportation Systems promulgated and started to exectue on January 21, 2010.
3.After the forum on noise improvement plan and noise subsidy plan with the engineering consulting companies and traffic enterprises, the common understandings and key points for compiling both plans have been established. Also, the shortcomings in the submitted noise improvement plans have been pointed out and summarized for reference, so as to be apt to continuous improvement of the traffic noise.
4.In the validation experiment for the sparation process of the complex traffic noise, the correctness has be raised to an error within ±0.7dB. It shows that the newly developed sound collector possesses very good sound magnification effect. Besides, the collectors have been used to successfully separate 9 sites of the complex traffic noise complaints.
5.Complete samples of the traffic noise improvement plan, the traffic noise subsidy play and the cause analysis of complex traffic noise problem by the method of simulation and measurement, respectively, for the reference of application.
6.Complete the survey of aviation monitoring systems of 10 airports, i.e., Chiayi shui-suong airport, Taipei Sung-San airport, Taoyuan Longtan airport, Taichung Ching-Chuan Kung airport, Taichung Shin-Shier base, Tainan airport Tainan Guei-Ren base, Kaohsung Siaou-Kung airport, Taoyuan CSS International airport and Hwalian airport, and propose the comment remarks and check lists for further improvement of each individual aviation noise monitoring stand or monitoring center of the airports.
7.9 worthwhile works and suggestions have been proposed for further execution, so as to facilitate the improvement of traffic noise.