1,720,959 research outputs found
Psychological Factors Influencing Speeding Intentions of Car Drivers and Motorcycle Riders in Urban Road Environments
Get PDFThe aim of this study was to examine and
compare psychological factors influencing car drivers’ and motorcycle riders’
speeding intentions (IN), using the Theory of Planned Behaviour (TPB). The
psychological factors modules included Attitude (AT), Subjective Norm (SN) and
Perceived Behavioural Control (PBC). These were employed to explain speeding
intentions in urban road environments. A sample of 188 car drivers and 174
motorcycle riders were collected from the two universities within Khon Kaen,
Thailand. The Structural Equation Model (SEM) was used to examine and explain
speeding intentions. The results indicated that the TPB could explain 33% and
41% of the variance of intentions by car drivers and motorcycle riders,
respectively. The most significant psychological factor for car drivers was
determined by attitude (AT), while the speeding intention of motorcycle riders
was attributed to perceived behavioural control (PBC). The authorities in Khon
Kaen Province should determine safety policies that can improve these
psychological factors, which could have various effects or outcomes on changing
car drivers’ and motorcycle riders’ speeding intentions. The outcome of this
study could help to understand car drivers’ and motorcycle riders’ speeding
intentions in urban road environments and it could be useful for development of
safety measures
Cross-cultural Differences in Speeding Intentions of Drivers on Urban Road Environments in Asian Developing Countries
Get PDFThe aim of this study was to examine and
compare the psychological factors influencing driver speeding behavior in 3
cities in Southeast Asia, focusing on developing counties, using the Theory of
Planned Behaviour (TPB). Data was collected from 570 respondents in the urban
areas of Khon Kaen in Thailand, Vientiane in Laos and Phnom Penh in Cambodia.
The psychological factors of TPB include attitude (AT), subjective norm (SN)
and perceived behavioral control (PBC). These factors were employed to explain
speeding intentions in urban road environments. The Structural Equation Models
(SEM) was used to examine and explain speeding intentions. The results
indicated that the TPB could explain the variance by intentions of drivers in
Khon Kaen, Vientiane and Phnom Penh at 33%, 46%, and 84%, respectively. The most significant of the
psychological factors for Khon Kaen drivers was determined by AT, while the
speeding intentions of Vientiane drivers and Phnom Penh drivers were determined
by PBC. From this data, the authorities of each city should create and
implement safety policies that can improve these psychological factors, which
could have a positive effect on drivers’speeding intentions in urban road
environments. The outcome of this study could be useful for understanding the
speeding attitudes of drivers in three different countries and would be
beneficial for the development and introduction of preventative safety measures
in these countries as well
An evaluation of speed limit measure: A case of the Mittraphap highway passing through Khon Kaen city
No full textThe objective of this study is to evaluate the speed control measure on the arterial road of Khon Kaen city. The 60 km/hr speed limit was posted on the urban arterial since 2012. To reveal the existing conditions, this study analyzed the accident data, speed data and enforcement data. Driver’s and government officer’s attitudes toward the existing speed control measures are captured through the questionnaires survey and interview processes, respectively. The study results reveal that under the existing road environment, the drivers disagree with the posted 60 km/h speed limit and it cannot be enforced by the police. However, 1-year of speed control program significantly reduces the number of traffic injuries and fatalities. Spot speed study revealed that most of drivers reduced their speed once they saw the police with the radar gun. 86% of drivers agree with the speed control measure and 93% of drivers aware that driving speed is related to safety. Therefore, to support the existing speed control measure, this study suggests that the responsible authorities should consider and study for the suitable speed limit for the area and modify the road geometries accordingly. Besides, installing automatic speed enforcement devices, and continuing public campaign directly to the risk groups could also increase the effectiveness of the program
A study of speed limits and speed control measures for the urban arterial road
No full textSpeed limits in accordance with environment and road functions have been used as a fundamental tool for speed management and road safety. This paper presents literatures review of speed limits measure and results from the study on speed limits problem and driver attitude toward the speed limit and speed control measure. Area of study is on the arterial road where the Mittaprab Highway passed through Khon Kaen City. The study found that improper designation of road functions is the main cause of complexity and difficulty on safety management. It suggests more researches on speed limit setting methods to accommodate the road conditions of the country. In order to increase effectiveness of speed limits measure, this paper suggests transportation-related authorities to classify this area to be the urban arterial road, to set proper speed limits, and to modify the road environment in accordance with its function. More measures to enhance speed limit effectiveness and to reduce accident are included automatic speed control devices, speed limits warning signs, and advertisement signs to use the bypass route. These could enhance the effective speed management program
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Effects of automated speed control on speeding intention and behavior on mixed-traffic urban arterial roads
No full textAlthough the effectiveness of automated speed control (ASC) has been proven, the mechanism of behavioral change in developing countries remains unclear. The objective of this study was to elucidate the effect of ASC on drivers' speeding intention and behavior on mixed-traffic urban arterial roads. Before and during the implementation of ASC, questionnaires based on the theory of planned behavior (TPB) were administered to local passenger-vehicle drivers. A total of 200 participants with an average age of 38.4 years completed both survey waves. To explain the mechanism of behavioral change, the multiple indicators multiple causes (MIMIC) structural equation modeling (SEM) time-invariant was used simultaneously for both waves. The model explained 49% and 55% of the variance in intention, and 40% and 56% of the variance in self-reported speeding behavior, respectively, before and during the ASC implementation period. The findings reveal that ASC altered the cognitive factors of speeding behavior. Speeding became less favorable, had lower approval, and was more difficult to control. Drivers reported lower speeding tendency and diminished speeding behavior. Furthermore, the ASC changed the relative impact of the factors, boosted the influence of family members and close friends on drivers' speeding motivation, and increased the influence of intention and perceived control on speeding behavior. This paper provides recommendations for the implementation of ASCs on mixed-traffic urban arterial roads in developing countries
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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