Effect of Geometric Factors on Lateral Position of Vehicles in Freeway Buffer-Separated Managed Lanes

2017 ◽  
Vol 2616 (1) ◽  
pp. 10-18 ◽  
Author(s):  
Tomás E. Lindheimer ◽  
Kay Fitzpatrick ◽  
Raul Avelar ◽  
Jeffrey D. Miles
Keyword(s):  
Field Studies ◽  
Lateral Position ◽  
Left Shoulder ◽  
Design Element ◽  
Managed Lanes ◽  
Trade Offs ◽  
Buffer Width ◽  
Instrumented Vehicle ◽  
The Right ◽  
The Impact

Chapter 3 in the 2004 AASHTO high-occupancy-vehicle guidelines includes a prioritized trade-off table of various design options for high-occupancy-vehicle lanes (now known as managed lanes). The design trade-offs include the reduction of lane, shoulder, or buffer width. The key measure thought to be affected by lane, shoulder, and buffer width is lateral position. The presented study identified the relationship between operations and cross-section width, including the type of buffer design separating the managed lanes from the general-purpose lanes. This research study collected lateral position data on existing managed lane facilities with a range of geometric elements within both tangent and horizontal curves and identified potential relationships between the geometric design element values and the measure of effectiveness. The field studies included data collected at 28 sites with fixed video cameras and along 161 centerline miles with an instrumented vehicle that recorded data for the vehicle immediately in front of the instrumented vehicle. The study found that managed-lane drivers shifted away from the pylons placed in the buffer. Horizontal alignment (tangent or curve) and the direction of the horizontal curve (left or right) influenced lateral position. Left shoulder, lane, and buffer width affected lateral position. Modifying a 6.5-ft shoulder to a minimum shoulder (i.e., 1.5 ft) will result in drivers moving to the right about 0.5 ft; however, if an 18.5-ft shoulder is reduced by 5 ft, the impact in operations is negligible (drivers would shift only about 0.11 ft toward the right).

scholarly journals Recommendation and context: the missing links for increased life cycle impact in large industries

2019 ◽  
Vol 25 (2) ◽  
pp. 240-251 ◽  
Author(s):  
Emma Rex ◽  
Niklas Fernqvist ◽  
Sven-Olof Ryding
Keyword(s):  
Social Psychology ◽  
Life Cycle ◽  
Empirical Data ◽  
Information Barriers ◽  
Barriers And Enablers ◽  
Trade Offs ◽  
Large Production ◽  
The Right ◽  
The Impact

Abstract Purpose This study takes an open and explorative approach to investigating the impact, or lack of impact, of life cycle information on behaviours throughout large production companies. Based on cases where life cycle information has been provided, this paper analyses how life cycle information has been interpreted and acted upon—not only by the life cycle assessment (LCA) practitioner conducting the study but also by employees outside the environmental departments. Methods To understand the impact of life cycle information on everyday actions in organisations and how this impact can be enhanced, this study takes a grounded approach to following flows of life cycle information from the environmental department through other departments of an organisation. From the flows of information, the research team selected rich descriptions of empirical data that reflect action and inaction. Using interviews and documents, we collected barriers and enablers for acting on life cycle information. Barriers and enablers were interpreted and clustered into categories and arranged into concepts. Next, we reviewed the empirical data using theories from social psychology. Results and discussion The results show that it is difficult for life cycle information to result in subsequent action outside of environmental departments. The barriers to this action were partly due to the life cycle information per se such as gaps between what life cycle information is available and what life cycle information is needed. Barriers and enablers were also found in relation to the context in which life cycle information was applied and new behaviours were adopted, including timing and software structures, reward systems, trade-offs, and personal beliefs about the profession. The results suggest a new role of the life cycle proponent that includes providing the right life cycle information and understanding and influencing the expected agents’ situations. Conclusions Assisted by theories from social psychology, we found that behaviour can be changed if ‘recommendations’ and ‘contexts’ are considered when providing life cycle information. The paper suggests that the impact of life cycle information could increase if normative arguments about environmental visions, strategies, and overarching goals are aligned with enablers that focus on personal goals, such as meeting a deadline, reducing uncertainty, and reaching the threshold for a bonus.

scholarly journals Impact of Myocardial Revascularization on the Range of Joint Motion of the Superior and Inferior Members

2018 ◽  
pp. 1-4
Author(s):  
Lisboa Cordeiro AL ◽  
De Lima ASF ◽  
Silva Bispo RDS ◽  
Lisboa Cordeiro AL ◽  
Borges DL ◽  
...  
Keyword(s):  
Myocardial Revascularization ◽  
Knee Extension ◽  
Shoulder Abduction ◽  
Left Shoulder ◽  
Joint Motion ◽  
Preoperative Period ◽  
Shoulder Flexion ◽  
The Right ◽  
Revascularization Surgery ◽  
The Impact

Introduction: The surgical procedure for myocardial revascularization (MRI) may compromise chest stability, compliance and range of motion (ROM) of the shoulder joint due to sternotomy and knee joint due to saphenectomy. Objective: To evaluate the impact of myocardial revascularization surgery on upper and lower limb ROM Methodology: This is a prospective cohort study, performed with a group of patients submitted to cardiac surgery. In the preoperative period the ROM was evaluated through a goniometer, for flexion, horizontal abduction and vertical abduction of the right and left shoulder, as well as evaluation of the flexo-extension movement of the right knee. On the day of discharge from the Intensive Care Unit, the patients were reassessed. Results:Twenty patients were evaluated during the time of the study. The majority were men 14 (70%), with a mean age of 60 ± 10 years. Regarding ROM, it was verified that all the movements presented a significant reduction in the postoperative period. The right shoulder flexion (75 ± 11ºvs66 ± 8º, p = 0, p <0.01), right shoulder abduction (155 ± 17º vs127 ± 22º, p < (P = 0.02), right vertical abduction (142 ± 24º vs117 ± 22º, p <0.01), left vertical abduction (142 ± 24º vs121 ± 22º, p = 0), left horizontal abduction (79 ± 9º vs70 ± 5º, p=0,02), Knee flexion (100 ± 14º vs75 ± 19º, p <0.01) and knee extension (94 ± 13º vs79 ± 15º, p <0.01). Conclusion: It can be concluded that the surgery promote reduction of the range of joint motion in this sample of patients submitted to myocardial revascularization.

scholarly journals JURIDIC ANALYSIS OF USED CLOTHES CONSUMER BASED ON ARTICLE 4 CONSUMER PROTECTION AND ISLAMIC LAW PERSPECTIVE

2020 ◽  
Vol 6 (2) ◽  
Author(s):  
Sugiharto Sugiharto ◽  
Andi Aina Ilmih
Keyword(s):  
Consumer Protection ◽  
Islamic Law ◽  
Negative Impact ◽  
Positive Impact ◽  
Legal Protection ◽  
Field Studies ◽  
Library Research ◽  
The Government ◽  
The Right ◽  
The Impact

This research focuses on the form of legal protection for used clothing consumers based on Article 4 of Law Number 8 of 1999 concerning consumer protection and analyzes the impact of the use of used clothing by the community in the city of Semarang, related to the Thaharah aspects in Islamic Law.To achieve this goal, researchers used a sociological juridical approach with data collection techniques in the form of library research and field studies by conducting direct interviews with relevant parties in connection with this research. The data obtained were then processed and analyzed by descriptive qualitative.The results showed that the form of legal protection for used clothing consumers in the Consumer Protection Act under Article 4, namely the right of consumers to get comfort, security, and safety. This is closely related to the obligations of business actors in providing true, clear and honest information about the conditions and guarantees of goods and/or services; and the need for guidance and supervision by the government. The impact caused by used clothing is negative impact and positive impact for used clothing consumers, both in terms of economic, social and public health in Indonesia. Although in an Islamic perspective, it is recommended that people prioritize aspects of thaharah (cleanliness) as Allah SWT requires every Muslim to purify in accordance with the criteria of Allah and His Prophet.

scholarly journals Advocacy science and fisheries decision-making

2011 ◽  
Vol 68 (10) ◽  
pp. 2007-2012 ◽  
Author(s):  
Jake C. Rice
Keyword(s):  
Decision Making ◽  
Peer Review ◽  
Ecological Economic ◽  
Privileged Position ◽  
Trade Offs ◽  
Science Advice ◽  
Different Types ◽  
The Right ◽  
Governance Processes ◽  
The Impact

AbstractRice, J. C. 2011. Advocacy science and fisheries decision-making. – ICES Journal of Marine Science, 68: 2007–2012. Science advice is supposed to meet idealistic standards for objectivity, impartiality, and lack of bias. Acknowledging that science advisors are imperfect at meeting those standards, they nonetheless need to strive to produce sound, non-partisan advice, because of the privileged accountability given to science advice in decision-making. When science advisors cease to strive for those ideals and promote advocacy science, such advice loses the right to that privileged position. There are temptations to shape science advice by using information that “strengthens” the conservation case selectively. Giving in to such temptation, however, dooms the advice; science advice becomes viewed as expressions of the biases of those who provide it rather than reflecting the information on which the advice is based. Everyone, including the ecosystems, loses. There are ways to increase the impact of science advice on decision-making that do not involve perverting science advice into advocacy: peer review by diverse experts, integrating advice on ecological, economic, and social information and outcomes, and focusing advisory approaches on risks, costs, and trade-offs of different types of management error. These approaches allow the science experts to be active, informed participants in the governance processes to aid sound decision-making, not to press for preselected outcomes. Everyone, including the ecosystems, wins.

Does Using Multiple Computer Monitors for Office Tasks Affect User Experience?

2019 ◽  
pp. 001872081988953 ◽  
Author(s):  
Kaitlin M. Gallagher ◽  
Laura Cameron ◽  
Diana De Carvalho ◽  
Madison Boulé
Keyword(s):  
Task Complexity ◽  
Evidence Synthesis ◽  
Well Being ◽  
Field Studies ◽  
Performance Outcomes ◽  
Trade Offs ◽  
Best Evidence Synthesis ◽  
Computer Monitors ◽  
The Impact ◽  
Multiple Monitors

Objective To compare the impact of multiple computer monitor configurations on health and performance outcomes compared to the use of a single monitor. Background Multiple monitor configurations are used in office settings to promote increased productivity by providing more screen space; however, it is unknown if there are health-related trade-offs to increased productivity. Method A systematic review was conducted according to the PRISMA statement guidelines and adapted the best evidence synthesis. Results Eighteen studies were included in our review. There was strong evidence that implementing dual monitors is in line with users’ preference. There was also moderate evidence for controlled laboratory studies demonstrating that multiple monitors may increase task efficiency with decreased desktop interaction; however, implementing multiple monitors may also result in nonneutral neck postures for users. Conclusion More research needs to be conducted on biomechanical exposures when using larger displays. Longitudinal field studies should be conducted to determine the influence of monitor interventions on health, productivity, and well-being. All studies must consider task complexity and user positioning and should measure health and productivity outcomes together. Researchers must also consider up-to-date purchasing trends when choosing the monitor configurations and sizes for their studies. Application Regulatory bodies and practitioners can use the results to develop evidence-based monitor guidelines and inform decision-making in practice, respectively. Researchers can use this information to design future studies on monitor configurations that incorporate current purchasing trends.

Operating Speed on a Buffer-Separated Managed Lane

2017 ◽  
Vol 2616 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Kay Fitzpatrick ◽  
Raul Avelar ◽  
Tomás E. Lindheimer
Keyword(s):  
Los Angeles ◽  
Orange County ◽  
General Purpose ◽  
Operational Performance ◽  
Left Shoulder ◽  
Operating Speed ◽  
Managed Lanes ◽  
Lane Width ◽  
Buffer Width ◽  
The Relationship

Managed lanes typically are on or adjacent to freeways and are actively operated and managed to preserve operational performance—such as more optimal travel speeds—over comparable general-purpose traffic lanes. A study was conducted to evaluate speeds on existing buffer-separated managed lanes to identify variables that influence operating speed. Speed data from more than 130 unique sites in Los Angeles, California; Orange County, California; and Dallas, Texas, were used. All analyses showed that the managed lane volume and the speed in the general-purpose lanes were related to the speed in the managed lane (statistically significant). The Dallas analysis, which used speeds averaged by 1-min increments, showed that the factor with the most influence on uncongested managed lane speed was the managed lane’s geometry. The relationship between uncongested managed lane speed and the managed lane envelope (sum of left shoulder width, managed lane width, and buffer width) was found to be statistically significant. For each additional foot over a 16-ft envelope width, managed lane speed increased by approximately 3.2 mph. In contrast, the California analysis, which used speeds averaged by 1-h increments, showed that the variable having the most influence was the volume in the managed lane. The researchers theorized that the lack of a relationship between managed lane speed and geometry in California is related to those speeds being an average 1-h speed rather than the 1-min speeds available in Texas.

Safety Evaluation of Cross-Sectional Elements of Freeway Managed Lanes

2018 ◽  
Vol 2672 (14) ◽  
pp. 20-28 ◽  
Author(s):  
Raul E. Avelar ◽  
Kay Fitzpatrick
Keyword(s):  
Safety Evaluation ◽  
General Purpose ◽  
Left Shoulder ◽  
Managed Lanes ◽  
Cross Sectional ◽  
Federal Highway ◽  
Lane Width ◽  
Severity Levels ◽  
Buffer Width ◽  
The Relationship

This paper investigated the safety implications of managed-lane cross-sectional elements. The objective of the Federal Highway Administration project was to investigate the relationship between crashes and buffer-separated managed lane dimensions. The results from several previous research studies have demonstrated that reductions in freeway lane width or shoulder width are associated with more crashes. This research found that a narrower managed-lane envelope width (i.e., left shoulder, managed-lane, and buffer width combined) is also associated with more freeway crashes for crashes of all severity levels including fatal and injury. Wider envelopes are associated a reduction in total freeway crashes, of all severities, of 2.8% in Texas, and 2.0% in California, for each additional foot of envelope width. In California, wider envelopes are associated with a reduction of 4.4% in managed-lane-related crashes resulting in fatalities and injuries at all severity levels, for each additional foot of envelope width. The analysis was conducted on nonweaving managed-lane segments that included a single managed-lane separated from the general-purpose lanes with a flush buffer area. The dataset included crashes on 128.0 miles of freeway in California (all 128.0 miles with flush buffers) and 60.4 miles of freeway in Texas (41.7 miles with pylon buffers and 18.7 miles with flush buffers). The California sites included freeways with three or four general-purpose lanes, and the Texas freeways had three to five general-purpose lanes.

Wpływ masy szkolnego plecaka transportowanego skośnie na prawym lub lewym barku i przy różnoimiennym biodrze na cechy postawy w płaszczyźnie strzałkowej i poprzecznej 7-letnich uczniów obojga płci

2020 ◽  
Vol 24 (3) ◽  
Author(s):  
Mirosław Mrozkowiak
Keyword(s):  
Physical Fitness ◽  
Left Shoulder ◽  
Muscular System ◽  
Physical Effort ◽  
Fitness Level ◽  
Asymmetric Loading ◽  
Moire Method ◽  
The Right ◽  
The Impact ◽  
Gender Specific

Introduction. The continuing percentage of postural statics disorders may have its roots in the method of carrying the loads of school supplies. Aim. The aim of the study was to show the effects of the load of the container with school supplies carried obliquely on the left shoulder and right hip or on the right shoulder and left hip in the sagittal and transverse planes on the posture. Material and methods. Body posture tests were carried out on a group of 65 pupils aged 7 years, using the projection moire method in four positions: 1-the habitual posture, 2 – the posture after a 10-minute asymmetric loading, 3 – the posture assumed one minute after removing the load, 4 - two minutes after taking the load off. Physical fitness was measured with the Sekita test. The analysis included the values of posture features to determine the significance of their differences and correlation with physical fitness to determine its relationship with the size of these differences. Conclusions. (1) The mode of carrying school items obliquely on the right or left shoulder and on different hips may cause significant adaptation changes in the skeletal and muscular system. It should be assumed that the bigger these changes are, the longer the carriage time is, the greater the mass of the container and the intensity of physical effort are. The changes are not gender specific. The analyzed carriage method should not be practiced among 7-year-old children of both sexes. (2) The overall fitness level shows a diversified relationship with changes in the values of postural traits as a result of the assumed carriage of school supplies. This relationship is bigger among boys. In case of girls, correlations are observed between endurance and the size of the inclination angle of the thoracic-lumbar spine. Among boys, all the features of physical fitness correlate most often with asymmetry of convexity of the lower angles of shoulder blades and the pelvic torsion in the transverse plane. The impact is gender dependent.

Emotional Reactivity to Visual Content as Revealed by ERP Component Clustering

2015 ◽  
Vol 29 (4) ◽  
pp. 135-146 ◽  
Author(s):  
Miroslaw Wyczesany ◽  
Szczepan J. Grzybowski ◽  
Jan Kaiser
Keyword(s):  
Emotional Reactivity ◽  
Brain Activity ◽  
Affective State ◽  
Occipital Lobe ◽  
Stimulus Onset ◽  
Emotional States ◽  
Neural Basis ◽  
Temporoparietal Junction ◽  
The Right ◽  
The Impact

Abstract. In the study, the neural basis of emotional reactivity was investigated. Reactivity was operationalized as the impact of emotional pictures on the self-reported ongoing affective state. It was used to divide the subjects into high- and low-responders groups. Independent sources of brain activity were identified, localized with the DIPFIT method, and clustered across subjects to analyse the visual evoked potentials to affective pictures. Four of the identified clusters revealed effects of reactivity. The earliest two started about 120 ms from the stimulus onset and were located in the occipital lobe and the right temporoparietal junction. Another two with a latency of 200 ms were found in the orbitofrontal and the right dorsolateral cortices. Additionally, differences in pre-stimulus alpha level over the visual cortex were observed between the groups. The attentional modulation of perceptual processes is proposed as an early source of emotional reactivity, which forms an automatic mechanism of affective control. The role of top-down processes in affective appraisal and, finally, the experience of ongoing emotional states is also discussed.

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