![]() All locations showed a seasonal variation with higher dust loads during winter and early spring and declining loads towards summer. The results were also compared to previous studies using the same method on different dense pavements in Stockholm, Sweden. Results, when using the wet dust sampler (WDS) method, showed similar dust load dynamics for the dense and porous pavements. This led to the opportunity to investigate the temporal variation of the dust load dynamics and inherent size distributions over the winter and spring in comparison to those of an adjacent dense pavement. Linköping municipality, in Sweden, constructed a porous pavement to mitigate road traffic noise. Due to this durability problem, porous pavements are rarely used in the Nordic countries where, instead, dense pavements which are abrasion resistant are more common. Road traffic noise can be mitigated using porous pavements, but the use of studded tyres increases the abrasion wear of the pavement as well as increasing the noise emission. In addition, knowledge regarding the impact of pavement types on road dust load dynamics is limited. Limited studies imply that porous pavements can initially mitigate PM 10 emissions by acting as a dust trap, but the abrasion wear generates road dust and thus accelerates the clogging processes. Recommendations for survey researchers interested in using this methodological approach in the future are discussed.Resuspension of road dust contributes to air quality issues with resulting health impacts. The main challenge for survey methodologists and interviewers is to devise simple protocols to explain to respondents why they are being contacted on a mobile telephone. Respondents are generally not familiar with being contacted on their personal mobile telephone for the purposes of being recruited for a research study. Conclusion It is undeniably more challenging to recruit respondents using mobile telephones as opposed to landline telephones. Details of how the survey protocols and procedures were monitored and adapted throughout the study to ensure a high response rate are outlined. Results During the 18-week fieldwork period, five main challenges relating to the use of mobile telephones were encountered: (1) explaining to respondents how random digit dialling works in relation to mobile telephones (2) establishing the respondent‟s eligibility (3) calling the respondent with the Caller ID blocked or withheld (4) calling the respondent when they are in any number of locations or situations and (5) explaining to respondents the importance of refusal conversion calls for the response rate calculation. All interviews were conducted using computer-assisting telephone interviewing. The overall response rate for the survey was 69% (79% for the landline telephone strand 61% for the mobile telephone strand). Method The 2010 Irish Contraception and Crisis Pregnancy Survey (ICCP-2010) is a nationally representative sample of adults aged 18-45 years living in Ireland (n = 3002 1416 recruited by landline telephone and 1586 recruited by mobile telephone). This paper outlines the actual challenges encountered during a recent national sexual health survey in Ireland, which utilized a mobile telephone sampling frame to recruit approximately half of the sample. The complex logistics of conducting surveys with mobile telephones have been discussed in the literature. Sampling mobile telephone users in national surveys is vital in order to gain access to the growing proportion of households that use mobile telephones extensively or exclusively. The method resulted in a bias toward female respondents.īackground Non-coverage of households without a landline telephone is a major concern of telephone survey researchers. The last-birthday method was used to select the adult for interview in each household. Response rates were not significantly different for the two methods, although the number of contactable numbers attempted and the noncontact rates were significantly higher for random-digit regions. Interviews used list-directed or random-digit dialling, depending on the rate of unlisted numbers in a region. This is the first time a computer-assisted method has been used on a large scale to collect health-related information in Australia. Over 10 400 interviews were conducted throughout the state. JULIA PLING GUSTAFSSON SERIESA series of regional health surveys was conducted in 1993 to provide this information, using a computer-assisted telephone interviewing method. Abstract: After the creation of thirteen health regions within Queensland in 1991, the need arose for an information base at the regional level to assist regions with their role in planning, monitoring and evaluating health services. ![]()
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