• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 56
  • 12
  • 3
  • 3
  • 3
  • 2
  • 2
  • 2
  • 2
  • 1
  • Tagged with
  • 86
  • 86
  • 22
  • 14
  • 14
  • 13
  • 12
  • 12
  • 12
  • 11
  • 10
  • 10
  • 8
  • 7
  • 6
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Review of road traffic noise control /

Yip, Ying-ling. January 1998 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1998. / Includes bibliographical references.
22

Effects of pavement type on traffic noise levels

Ambroziak, Matt J. January 1999 (has links)
Thesis (M.S.)--Ohio University, June, 1999. / Title from PDF t.p.
23

A study on the applicability of overseas road traffic noise predictionmodels to Hong Kong

Lui, Wai-keung., 呂偉強. January 1999 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
24

Impact of traffic noise pollution on the environment

Ambreen, Iqbal. January 2004 (has links)
published_or_final_version / Urban Planning / Master / Master of Science in Urban Planning
25

Study on factors affecting the uncertainties in road traffic noise prediction

Law, Chor-lun., 羅左倫. January 2000 (has links)
published_or_final_version / Environmental Management / Master / Master of Science in Environmental Management
26

Åtgärder för att minimera trafikbullers påverkan på ett rekreationsområde

Zingmark, Maria January 2010 (has links)
The aim of this inquiry was to investigate the most appropriate measures to reduce noise impacts from road traffic on the Nydala recreational area in Umeå municipality due to the planned re-routing of the E4 motorway to an existing road along this area. The sound environment is an important part in the experience when we are visiting recreational areas. Noise is not only disturbing; the liberty from unwanted sounds also allows us to perceive natural sounds that are a benefit for the cultural experience. Therefore it is important to take actions to protect this well used area from traffic noise. The reasonable options to avoid noise impact in this case are to lower the speed limit, using a noise reducing coating or use noise protection screens and walls. To estimate the measures suitability the starting points were to measure the effects on noise, the impact on the landscape, coasts and other possible side effects. It is important that the noise issue may not be replaced by other problems such as barrier effects, significant effects on the landscape or worsening living environment. To assess the reducing effect of the noise, calculations have been made. These showed that the measures that reduce noise spread were more favorable compared to those which prevent noise generation. The most appropriate measure in this case, based on the noise impact and influence on the landscape, is a 2 meter high acoustic screen in a combination of 0,5 meter wood and 1,5 meter tempered
27

Wave propagation in tyres and the resultant noise radiation

Kim, Gi-Jeon January 1998 (has links)
No description available.
28

Influence of weather conditions on the propagation of highway noise at sites with barriers

Lin, Kai-Jui. January 2000 (has links)
Thesis (M.S.)--Ohio University, November, 2000. / Title from PDF t.p.
29

Highway traffic noise barrier overlap gap model

Clum, Craig M. January 1997 (has links)
Thesis (M.S.)--Ohio University, June, 1997. / Title from PDF t.p.
30

Trafikbuller på skolgårdar : Upplevda trafikbullerproblem för personal på skolgården, samt utvärdering av kunskap kring buller hos personalen och ledningen i förskolan

Bashiri, Bahram January 2016 (has links)
There is not much research done on how traffic noise on schoolyards affect children and teachers although noise pollution from traffic often are high and affect both groups in several ways. It is a well-established fact that a positive sound environment affects health and learning as well as the working capacity by reducing stress levels. The purpose of this study is to examine whether sound pollution is prevalent in elementary schools in Umeå, if the personnel have knowledge pertaining to the effects of sound pollution, and whether the examined schools have specific routines and self-monitoring mechanism for dealing with sound pollution. The study also aims to inquire whether the schools take any preventive measures with regards to minimizing sound pollution and if they have assigned responsibility for these matters to anyone in the organization. Two methods were used in the study, a questionnaire for teachers and interviews with the principals. The questions were formed in such a way so as to shed light on the above mentioned purposes of this study. The answers to the questionnaire illustrate if and how the teachers perceive and deal with sound pollution on the schoolyard. The interview questions aimed to assess the perception of the principals regarding the sound pollution in their respective schools, the level of knowledge the school management had with regards to sound pollution as well as the routines used for ameliorating and preventing sound pollution on the school yard. The study was performed in four elementary schools in the municipality of Umeå and the questionnaire had 32 respondents. One major reason for using a questionnaire was to maximize the amount of respondents in a time efficient manner. The study intends to shed light on a problem (i.e. sound pollution) that schools usually tend to disregard but nevertheless a problem that, possibly, could lead to dire consequences if not taken into account. The results of the study show that 10 of the 32 teachers perceive traffic noise as a problem that affects both children and educational activities negatively on their schoolyard. The results of the study indicate that teachers perceive sound pollution to be a problem on their schoolyard. However, they seem to lack adequate knowledge regarding the health outcome of such noise pollutants. In conclusion, it is evident that teachers need more support information, resources and education in order to enable them to achieve a positive sound environment on their workplace - both for themselves and the children. The results show that there still remains a lot to improve in schools with regards to noise pollution. In many cases, even those responsible at the schools lacked the knowledge necessary to understand the health problems with noise pollution.

Page generated in 0.0652 seconds