A Temporal Investigation of Crash Severity Factors in Worker-Involved Work Zone Crashes: Random Parameters and Machine Learning Approaches:
Reason:
In the context of work zone safety, worker presence and its impact on crash severity has been less explored. Moreover, there is a lack of research on contributing factors by time-of-day. To accomplish this, first a mixed logit model was used to determine statistically significant crash severity contributing factors and their effects. Significant factors in both models included work-zone-specific characteristics and crash-specific characteristics, where environmental characteristics were only significant in the daytime model. In addition, results from parameter transferability test provided evidence that daytime and nighttime crashes need to be modeled separately. Further, to explore the nonlinear relationship between crash severity levels and time-of-day, as well as compare the effects of variables to that of the logit model and assess prediction performance, a Support Vector Machines (SVM)
What is meant by machine learning approach?
Machine Learning is an AI technique that teaches computers to learn from experience. Machine learning algorithms use computational methods to “learn” information directly from data without relying on a predetermined equation as a model.
Learn more about random parameter approach:
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Confederate--or a confederation of states.
<span>Unitary is no state sovereignty.
</span>Authoritarian is a dictatorship.
When judgments or decisions are influenced by the way in which information is presented, this is called a framing effect.
The term framing effect is an important concept in behavioral economics and psychology. It states, that people react to a particular choice in different ways depending on how it is presented.
In the 1930's, the best time to sell your stocks would have been around mid-April (this is when they were worth the most.)The best time to buy new stocks would have been when the stock market was at its lowest point,during late October.
<span> A. Troops' ultimate mission is to protect U.S. citizens from foreign threats.
B. Government fears that troop activity in domestic territory may spark hostilities and resentment for the military. This hurts the image of, and respect for, military personel.
C. That's what we have police for.
Hope this helps!</span>
