Street Intersection Characteristics and Their Impacts on Perceived Bicycling Safety

Author(s):  
Kailai Wang ◽  
Gulsah Akar

Safety concerns are among the main issues that deter people from bicycling in the U.S. Earlier studies have explored the associations between characteristics of intersection design and bicyclists’ safety perceptions. Research shows that there are significant links between bicycling choice, safety perceptions, bicycling experience levels, and socio-demographics. Yet the existing bicycling safety-rating models do not control for individuals’ socio-demographics and their levels of bicycling experience, which are known to affect bicycling choice. This study develops a Perceived Bicycling Intersection Safety (PBIS) model which helps engineers, planners, and decision makers to understand better how a wide range of intersection features contribute to bicyclists’ safety perceptions, controlling for socio-demographics and bicycling experience. The empirical analysis is based on an online visual survey conducted at the main campus of The Ohio State University through March and April 2017. Results showed that visual surveys are effective in capturing information about bicycling preferences. The paper concludes with recommendations for infrastructure decisions and suggestions for future research. The results of this study can help planners design street intersections that bicyclists will prefer. Our model can be applied elsewhere to test the effects of different intersection and street features.

1980 ◽  
Vol 102 (3) ◽  
pp. 181-189 ◽  
Author(s):  
R. M. Nerem ◽  
J. F. Cornhill

A specialists meeting on “The Role of Fluid Mechanics in Atherogenesis” was held August 24–25, 1978, at The Ohio State University. This meeting was a followup to a similar meeting held in 1974 [1, 2]. The present status of our knowledge of the importance of fluid mechanics in the initiation and progression of arterial lesions is summarized on the basis of the experimental data presented at the meeting; no attempt is made to provide a comprehensive review of the relevant literature. Three basic aspects are addressed: firstly, the localization of arterial lesions; secondly, the local hemodynamics of arterial segments with a high predilection to the development of lesions; and thirdly, the interaction of hemodynamic factors with the arterial wall. The many unresolved questions, apparently conflicting experimental data and areas in need of future research on the role of fluid mechanics in atherogenesis are identified specifically.


1957 ◽  
Vol 4 ◽  
pp. 132-141 ◽  
Author(s):  
J. D. Kraus ◽  
H. C. Ko ◽  
R. T. Nash ◽  
D. V. Stoutenburg

Research in radio astronomy at the Ohio State University covers a wide range of astronomical and engineering phases. In this paper the principal topics currently under investigation are briefly discussed. Reference is made to more detailed papers or reports published within recent months or now in the press.


2017 ◽  
Vol 44 (3) ◽  
pp. 472-486 ◽  
Author(s):  
Bradley Ray ◽  
Nicholas J. Richardson

In recent years, there has been a surge in research that examines the relationship between traumatic brain injury (TBI) and involvement in the criminal justice system. However, the bulk of this research has been largely retrospective and descriptive, comparing rates of TBI in the offending population with the rates of TBI in the general population. Although findings from these studies indicate a higher prevalence of TBI in the offending population, virtually no studies have examined whether those with TBI are more likely to recidivate. To address this gap, the present study examined rearrest post release from prison among a cohort sample of Indiana inmates who were screened using the Ohio State University Traumatic Brain Injury Identification (OSU-TBI-ID) instrument. Findings indicate that, net of control variables, those with TBI were more likely to recidivate sooner than those without TBI. Policy implications and directions for future research are discussed.


2018 ◽  
Vol 45 (6) ◽  
pp. 885-901 ◽  
Author(s):  
Nicole Glover ◽  
Kim Gorgens ◽  
Marybeth Lehto ◽  
Laura Meyer ◽  
Judy Dettmer ◽  
...  

Offenders in justice system settings have high rates of traumatic brain injury (TBI) in comparison with the general population. Consequently, justice systems are using screening tools to identify and manage these individuals. Currently, that includes screening for TBI history and gross cognitive impairment. The present study attempted to determine whether the modified Ohio State University Traumatic Brain Injury Identification Method (OSU TBI-ID) was predictive of ongoing cognitive impairment as measured by the Automated Neuropsychological Assessment Metrics (ANAM) Core Battery. If so, the OSU TBI-ID could be used as a stand-alone measure of TBI history and impairment. This study had 223 participants (male = 160, female = 62). Sensitivity and specificity results revealed poor (.65) to very poor (.36) estimates for all OSU TBI-ID indices across all ANAM subtests. This study suggests that screening for lifetime history of TBI does not identify cognitive impairment. Implications for screening policy and future research are discussed.


2016 ◽  
Vol 1 (5) ◽  
pp. 4-12
Author(s):  
David P. Kuehn

This report highlights some of the major developments in the area of speech anatomy and physiology drawing from the author's own research experience during his years at the University of Iowa and the University of Illinois. He has benefited greatly from mentors including Professors James Curtis, Kenneth Moll, and Hughlett Morris at the University of Iowa and Professor Paul Lauterbur at the University of Illinois. Many colleagues have contributed to the author's work, especially Professors Jerald Moon at the University of Iowa, Bradley Sutton at the University of Illinois, Jamie Perry at East Carolina University, and Youkyung Bae at the Ohio State University. The strength of these researchers and their students bodes well for future advances in knowledge in this important area of speech science.


2011 ◽  
Vol 9 (2) ◽  
pp. 99
Author(s):  
Alex J Auseon ◽  
Albert J Kolibash ◽  
◽  

Background:Educating trainees during cardiology fellowship is a process in constant evolution, with program directors regularly adapting to increasing demands and regulations as they strive to prepare graduates for practice in today’s healthcare environment.Methods and Results:In a 10-year follow-up to a previous manuscript regarding fellowship education, we reviewed the literature regarding the most topical issues facing training programs in 2010, describing our approach at The Ohio State University.Conclusion:In the midst of challenges posed by the increasing complexity of training requirements and documentation, work hour restrictions, and the new definitions of quality and safety, we propose methods of curricula revision and collaboration that may serve as an example to other medical centers.


2019 ◽  
pp. 113-118

Background Suppression is associated with binocular vision conditions such as amblyopia and strabismus. Commercial methods of testing fusion often only measure central fusion or suppression at near. The purpose of this pilot study was to assess a new iPad picture fusion test that assesses foveal and central fusion at near. Methods Participants aged 5 years and older presenting for eye examination at The Ohio State University College of Optometry were enrolled. Results from visual acuity, dry and wet refraction/retinoscopy, stereopsis and cover testing were recorded from the patient chart. The iPad picture fusion test, Worth four-dot, Worth type test with foveal letter targets, and Polarized four-dot were performed by one examiner in a randomized order at 40 cm. Testing was repeated with the anaglyphic filters reversed. Crosstabulation and McNemar chi-square analysis were used to compare the results between fusion testing devices. Results Of the fifty participants (mean age = 17.5), twelve reported suppression and one reported diplopia. Testability was excellent for all tests (98% to 100%). There were no significant differences between tests in reported results (P ≥ 0.22 for all comparisons). No difference in reported fusion or suppression status was observed with change in orientation of the anaglyphic filters. Six participants reported foveal suppression alone at near which was not identified with Worth four-dot at near. Conclusion The iPad picture fusion test provided excellent testability and agreement with commonly used tests of fusion and allowed testing of both central and foveal fusion at near. Nearly half (46%) of participants with suppression reported foveal suppression, supporting the importance of testing for foveal suppression.


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