The paper presents some of the results from field investigations on effects of exposure to noise and vibration from railway traffic. Effects on annoyance, sleep disturbances and psycho-social well-being, as well as disturbance of different activities, were evaluated by a postal questionnaire. Effect
A noise and vibration survey in an underground railway system
β Scribed by V. Mohanan; Omkar Sharma; S.P. Singal
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 608 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0003-682X
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β¦ Synopsis
A BSTRA CT Noise and vibration measurements have been made in the rapid rail transit system (metro) in Calcutta. The track is 16"43 km long, is ballastless and has been laid for most of the journey in a specially-designed underground concrete tube of box structure. The results of measurement show that both noise and vibration levels are higher than the recommended values for reasonable comfort. The factors responsible for excessive noise have been analysed and methods to bring noise and vibration levels within comfortable limits have been suggested.
π SIMILAR VOLUMES
ing-frequency bands was constructed. In this case, β¬l is set to be 0 mm, and the dimensions of s and d are selected to be 4 and 19.5 mm, respectively. The measured and simulated (by IE3D) return losses against frequency for antenna A are shown in Figure 2. Agreement between them is satisfactory, exc