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We describe a risk-based analytical framework for estimating traffic fatalities that combines the probability of a crash and the probability of fatality in the event of a crash. As an illustrative application, we use the methodology to explore the role of vehicle mix and vehicle prevalence on long-run fatality trends for a range of transportation growth scenarios that may be relevant to developing societies. We assume crash rates between different road users are proportional to their roadway use and estimate case fatality ratios (CFRs) for the different vehicle-vehicle and vehicle-pedestrian combinations. We find that in the absence of road safety interventions, the historical trend of initially rising and then falling fatalities observed in industrialized nations occurred only if motorization was through car ownership. In all other cases studied (scenarios dominated by scooter use, bus use, and mixed use), traffic fatalities rose monotonically. Fatalities per vehicle had a falling trend similar to that observed in historical data from industrialized nations. Regional adaptations of the model validated with local data can be used to evaluate the impacts of transportation planning and safety interventions, such as helmets, seat belts, and enforcement of traffic laws, on traffic fatalities. 相似文献
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Rachel H. Farr Ilyssa Salomon Jazmin L. Brown-Iannuzzi Christia Spears Brown 《Journal of GLBT Family Studies》2019,15(2):127-150
As numbers of families with same-sex parents increase in the United States, children are more likely to encounter diverse family structures. Given that young children can demonstrate in-group bias, prejudicial attitudes, and social exclusion, it is important to understand how children perceive their peers in diverse families. To our knowledge, no studies have assessed elementary-school-age children's attitudes about same-sex parent families. Here, 131 elementary school students (Mage = 7.79 years; 61 girls) viewed images of same-sex (female and male) and other-sex couples with a child and then were asked about their perceptions of these families, particularly the children. Results indicated participants' preferences toward children with other-sex versus same-sex parents. Developmental and practical implications about children's attitudes toward sexual minority parent families are discussed. 相似文献
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The study investigates factors associated with the individual intentions to change the family financial situation of 337 farm respondents. The hypotheses are that intentions to change are influenced by (a) resource flexibility or constraints existing at the time of the decision situation, including off-farm employment, education, age, and household size, and (b) perceptual factors of perceived income adequacy, locus of control, degree of discrepancy between standard and level of the family financial situation, and dissatisfaction or satisfaction with the discrepancy. Older respondents and those experiencing more external control are less likely to intend to change. Younger respondents and those who perceive their incomes as more adequate are more likely to perceive that they have control over their situation. The lower the perceived income adequacy, the greater the discrepancy between standard and level of the family financial situation and the lower the satisfaction with the discrepancy. Significant indirect effects were consistent with theoretical expectations.Research was supported by the Minnesota Agricultural Experiment Station Projects 52-055, 52-054, and 52-058 and the Minnesota Extension Service. The authors wish to thank Jean W. Bauer, Ph.D., for research collaboration and Susan Keskinen and Cathy Schultz for research assistance.Her research interests include social, economic, and technical decision processes, discrepancies between standards and levels, and the interrelationship of work and family roles, particularly for farm women. Her Ph.D. is from Iowa State University.Her research interests in family resource management theory include social decision making processes and social decision rules, family life quality, and the economic consequences of divorce. Her Ph.D. is from Michigan State University. 相似文献
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One hundred and one Fine Arts college students judged seventeen Western Master paintings of small groups spanning six centuries, using a semantic-differential scale. It was hypothesized that the paintings would portray a decreased sense of social cohesiveness, reflecting Riesman's (1950) characterization of social changes from inner-directed to other-directedness. A factor analysis revealed that one of the two factors extracted, group solidarity, significantly related to century of painting, supporting Riesman's thesis. 相似文献
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Daniel Latendresse Michelle Smith Salomon Rettig 《Journal of Social Distress and the Homeless》1996,5(3):273-303
The purpose of this paper is to review the White and Black perspectives regarding the O.J. Simpson trial. The hermeneutic-dialectic (HD) method of inquiry will be utilized in order to comprehens how Whites and Blacks reached their respective conclusions concerning O. J. Simpson's guilt or innocence. This method of inquiry employs discourses, separately by Blacks and Whites, the interchange of the recorded discourses, and last, the coming together of both groups of participants for further discourse. Blacks, in contrast to Whites, experienced justice through a common sense of identity forged historically by a minority people rather than by the immediate circumstantial evidence gathered at the time of the trial. 相似文献
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Robert Salomon 《Social Policy & Administration》2015,49(3):299-315
We examine in this article the impact of digitization on the provision of public services by studying how citizens experience the use of web portals in their pension planning. Based on focus groups and user test material, we elucidate five critical phases that each operate as an obstacle for citizens' further engagement in the digital self‐service process: interest, access, comprehension, reflection and support. We argue that these phases and the obstacles they entail illustrate a transition away from a situation in which control and agency over the quality of public services is embedded in a dyadic relationship between citizens and frontline personnel, and to a situation characterized by more complex relations between citizens, the front line, and the digital infrastructure. We argue that this transition implies that citizens are required to possess a new type of competence that contains both financial and digital skills. Citizens who are unable to develop or acquire such competence are likely to be disadvantaged by the services. Lastly, we argue that these developments pose significant challenges for public administrations to ensure the overall quality of the public services. 相似文献
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Two people in distress over the death of a parent converse with each other about the loss. Death must convey some meaning. The attempt at creating such meaning appears to be a function of the comfort to be derived to the survivors. To the extent that death is seen as transition to some other form of further existence, e.g., to some place of tranquility, the survivors remain at peace. That vision, however, presents considerable difficulties since it demands some form of contact with the deceased. In the absence of such contact, doubts remain and the survivors suffer from a sense of abandonment and apathy due to the lack of meaning. 相似文献
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The paper presents Foa and Foa's Resource Theory (1974) that was used to develop a self-report, multidimensional measure of family well-being, an indicator of family life quality. Facet theory methods of sentence mapping provided an explicit way to explain how theoretical constructs were translated to operational measures, and a rationale for the use of multidimensional scaling analysis to verify the circular structure of resource classes proposed by the theory. Results of the analyses confirmed the theoretical propositions for a sample of 560 adults and indicated a better fit of the data for women's, compared to the men's model. 相似文献