1,314 research outputs found

    Proactive Assessment of Accident Risk to Improve Safety on a System of Freeways, Research Report 11-15

    Get PDF
    This report describes the development and evaluation of real-time crash risk-assessment models for four freeway corridors: U.S. Route 101 NB (northbound) and SB (southbound) and Interstate 880 NB and SB. Crash data for these freeway segments for the 16-month period from January 2010 through April 2011 are used to link historical crash occurrences with real-time traffic patterns observed through loop-detector data. \u27The crash risk-assessment models are based on a binary classification approach (crash and non-crash outcomes), with traffic parameters measured at surrounding vehicle detection station (VDS) locations as the independent variables. The analysis techniques used in this study are logistic regression and classification trees. Prior to developing the models, some data-related issues such as data cleaning and aggregation were addressed. The modeling efforts revealed that the turbulence resulting from speed variation is significantly associated with crash risk on the U.S. 101 NB corridor. The models estimated with data from U.S. 101 NB were evaluated on the basis of their classification performance, not only on U.S. 101 NB, but also on the other three freeway segments for transferability assessment. It was found that the predictive model derived from one freeway can be readily applied to other freeways, although the classification performance decreases. The models that transfer best to other roadways were determined to be those that use the least number of VDSs–that is, those that use one upstream or downstream station rather than two or three.\ The classification accuracy of the models is discussed in terms of how the models can be used for real-time crash risk assessment. The models can be applied to developing and testing variable speed limits (VSLs) and ramp-metering strategies that proactively attempt to reduce crash risk

    Low frequency pressure oscillation study, phase 1 Interim study

    Get PDF
    Characteristics of low frequency pressure oscillations in Apollo spacecraft engine

    The Food Babe fearmonger: transcending spheres of argument through the dual use of personal and pseudo-technical expertise

    Get PDF
    This thesis examines the public figure Vani Hari, aka The Food Babe, and her influence on public dialogue about food, nutrition, and diet. Using the theoretical framework of spheres of argument as originally described by G. Thomas Goodnight, this thesis analyzes Food Babe as an expert within the personal, technical, and public spheres. Both verbal and visual arguments will be considered throughout the analysis of Food Babe as both a personal sphere rhetor and pseudo-technical expert. This thesis argues that Food Babe simultaneously uses personal sphere evidence and argumentative strategies to legitimize herself as a pseudo-technical expert within the technical sphere, and uses technical or scientific evidence to establish herself as a maternal expert within the personal sphere. The conclusion of this thesis expands on Goodnight’s original theorization of the spheres of argument and argues that the three spheres as originally described are insufficient for understanding the rhetorical function of public figures like Food Babe

    Session II Business Presentation 3: Color Perception of Luxury in Consumer Packaging and Consumer Behavior

    Get PDF
    Color plays a significant role in consumer behavior. So significant; that consumers do not realize the impact color plays on decision making when purchasing products. Empirical research shows color impacts perceived quality, taste, and overall performance of a brand or product. The main purpose of this study is to pursue an understanding of consumer perception of luxury and quality as it relates to color in consumer packaging

    Comparing and Contrasting the Benefits of Aquatic Exercise with Other Forms of Exercise for the Elderly Population

    Get PDF
    As humans age, there are certain biological processes that are unavoidable. However, there are also some biological processes that may be avoidable or slowed through a healthy lifestyle. The following is a list of some common problems that can occur with aging.1(Kayla SiddellHonors DiplomaHonors CollegeCunningham Memorial Library, Terre Haute, Indiana State UniversityUndergraduateTitle from document title page. Document formatted into pages: 20

    Book Review: Imaginative Programing in Probation and Parole

    Get PDF
    The tactics and policies of criminal courts and penologists are now approaching Robert Frost\u27s two roads diverging in a yellow wood. Like Frost\u27s lone traveler, society must choose which road to take: the well-traveled one or the newly-charted one. Paul W. Keve, Director of Court Services in Minneapolis, has become a pace-setter in the use of probation and parole by choosing the latter course. For first offenders and one-time repeaters Keve substitutes a restrained but flexible leniency for a rigid strictness; individual attention for an impersonal assemblyline procedure; and positive stimuli for punitive measures. Using counseling (by caseworkers), group sessions, and halfway houses, Keve has enabled a high percentage of probationers and parolees to rehabilitate themselves. The author emphasizes that reformation, rather than punishment, is always his primary goal. Keve\u27s approach may at first seem idealistic, but after he presents numerous examples illustrating the effectiveness of therapeutic justice, one concludes that it is only his hope for sufficient funds, adequate staff, and community support that is idealistic

    Inter-Firm Knowledge Sharing and Its Effect on Relationship Value: A Global Supply Chain Perspective

    Get PDF
    Learning theories playa prominent role in new theories of competitive advantage. Despite the recent progress in understanding interorganizationallearning (inter-firm knowledge sharing), gaps and shortcomings remain. Inter-firm knowledge sharing involves risks and dilemma. Little is known about the charactetistics of global supply chain design that would encourage inter-firm knowledge sharing, and how these collaborative activities could lead to improving the long-term performance ofthe individual companies and the supply chain as a whole. Furthermore, previous studies on inter-firm collaboration mainly looked at operational efficiency as the key performance measurement. Relationship value should be taken as a more critical criterion variable when firms are driven by more demanding customers, global competition, and slowgrowth economies. Building from the resource-based view, transaction cost economics, relational exchange view, and political economy paradigm, this study seeks to provide insight to how firms commit their resources to engage in knowledge sharing activities with their overseas supply chain partners, and the implications on horizontal (i.e., crossborder) segmentation pertaining to firms\u27 sourcing and marketing strategy. Using the extant literature fronl the fields of marketing, supply chain management, and international business, a theoretical model was constructed and then tested through a Web survey involving 105 supply chain dyads (210 responses) from 4 manufacturers representing 3 industries with facilities located in 19 countries. The survey data were analyzed using structural equation modeling to simultaneously test the 8 hypotheses. Both the buyers and the sellers in this study shared the consensus that environmental uncertainty, environmental fit, organizational fit, and idiosyncratic investments facilitate inter-firm knowledge sharing in spite ofthe risks and dilemma associated with such activities. Both sides ofthe dyad also found the investments in such activities worthwhile, when outcomes were measured by relationship value, explored from the perspectives of both the buyers and the sellers
    • …
    corecore