In 2012, a major traffic safety organization tasked the MIT AgeLab with developing a data-driven system for rating the effectiveness of new technologies intended to improve safety. Such a system was envisioned as having the potential to educate and guide consumers towards more confident and strategic purchasing decisions, ideally encouraging adoption of technologies with demonstrated safety benefit. In addition, an evaluation of the status and extent of existing data was seen as a way of identifying research gaps in the state (...) of knowledge about safety systems. The focus was on technologies as a class, not on a rating review of individual vehicle model implementations. As conceptualized, the system aimed to complement traditional NCAP style ratings as well as to provide consumers with transparent information on early stage and often improving safety technologies. Development of the rating system and identification of data was undertaken in consultation with a range of academic, industrial, consumer, NGO, and governmental experts as well as with representatives of many of the major automotive manufacturers and suppliers. -/- A key observation that emerged was that data on objectively demonstrable real-world benefits were generally sparse and often lower than expectations based on theoretical considerations, simulation studies, or pre-production evaluations. A number of experts and industry representatives expressed some surprise at both the divergence between theoretical and observed benefits and the relative scarcity of data upon which to make objective assessments, while others were quite aware of these issues and the need for the development of objective data under real-world operating conditions. A number of factors that might be relevant to understanding why such differences between expected and observed benefits exist were identified. One outcome of this effort was the founding of the Advanced Vehicle Technology (AVT) consortium to collect and examine objective data under naturalistic driving conditions of how drivers interact with, engage or don’t engage, various production safety and driver assistance systems. This ongoing effort is contributing to insights concerning actual benefits and reasons for benefit gaps. -/- Drawing from our initial work, as well as newer sources of data, we argue that the evaluation and rating of safety and driver assistance technologies for informing the consumer and the public at large should consider both theoretical potential and existing demonstrated benefit of specific technologies. This position is increasingly relevant as the effectiveness of many newer technologies have the potential to actually improve over the lifecycle of a vehicle through software updates. The emphasis on ratings based on observed benefit for actual drivers under real-world conditions is proposed to be complementary, rather than competing with, ratings focused largely on controlled test track evaluations of engineered capability. In addition, a case is made for providing ratings that assesses benefit relative to overall crash, injury, and fatality rates – and in relation to the specific scenario / crash event type that a given technology is intended to address. This approach should aid consumers in considering the extent to which a specific technology is or is not relevant to their particular driving needs. (shrink)

Risk propagation encompasses a plethora of techniques for analyzing how risk “spreads” in a given system. Albeit commonly used in technical literature, the very notion of risk propagation turns out to be a conceptually imprecise and overloaded one. This might also explain the multitude of modeling solutions that have been proposed in the lit- erature. Having a clear understanding of what exactly risk is, how it be quantified, and in what sense it can be propagated is fundamental for devising high-quality (...) risk assessment and decision-making solutions. In this paper, we exploit a previous well-established work about the nature of risk and related notions with the goal of providing a proper interpre- tation of the different notions of risk propagation, as well as revealing and harmonizing the alternative semantics for the links used in common risk propagation graphs. Finally, we discuss how these results can be leveraged in practice to model risk propagation scenarios. (shrink)

For the full text of this article see "Download Options PhiPapers Archive and click Download from Archive" at the bottom of this page. First 500 words of article: To my surprise last spring, an article titled “Gut Almighty”, which briefly explained the latest emotion theories on how intuition comes from the gut, was featured in Psychology Today (Flora, 2007) at the same time that my article on gut instinctual somatic responses and healthy life choices was published in Somatics Spring 07 (...) issue (Love, 2007). I wondered if two articles published on the gut in one month might surely be a record, as the gut has not seemed to have so much attention in the media since Gershon’s (1998) book acclaiming it through his neurological research to have a mind of its own. -/- In the months I awaited the publication of my article, I reread Gershon’s (1998) book and it was again delightful to me to read that a scientific investigation actually uncovered evidence that the gut has a separate capacity to generate and record vital responses and functions as what he calls our second brain. Gershon outlines the biological functions of the gut as being its own intelligent brain and having its own vitality that is in communication with, but not dependent upon, the head brain. As I combed through his book and shared emails with my colleague, Robert Sterling, it became quite clear to us that Gershon’s work was supportive of the clinical findings in the work we did as guidance counselors in the 70s. Our work centered around assisting people to assess the meaning of their experiences through an awareness on the empty-full instinctual feeling responses that they identified in the gut region of the body. We found with the people that we counseled that these gut responses were linked to the dynamic struggles of balancing the two needs of the person for acceptance and for feeling in control of one’s own responses (the freedom to respond naturally), and that these two needs were instinctual and necessary to fulfill on a moment to moment basis for continued vitality of the person. Similar to Gershon’s findings, it was also our conclusion that the gut area of the body contains a feeling response center that holds a relationship to the thinking processes of the person, but is a separate response center from the thinking head responses and certainly not dependent upon it. -/- Feeling inspired by Gershon’s (1998) work and the attention recently given to the gut in the literature and media, I decided to write a second article for Somatics that further explains the specific technique of the Somatic Reflection Process (SRP). The intention of this article is to answer the questions about the process that I have been asked in the past year by many friends and colleagues who read my first article last Spring on the findings of Robert Sterling’s and my somatic work as guidance counselors. I am including both the method and a protocol for facilitating the SRP, as well as a brief summary of a recent research study using the SRP protocol presented (Love, 2005). (shrink)

Pierre Bourdieu’s social theory relies on concepts of four kinds of capital: economic, social, cultural, and symbolic. The anthropologist Pnina Werbner raises the issue of whether the concept of symbolic capital faces a paradox, because within some social groups one can only gain such capital by denying its value. There is a question of how best to clarify the paradox and I offer a clarification.