When Communication Failure Contributes to an Injury: A Case Study of Para-Transportation for Wheelchair Users

2007 ◽  
Vol 51 (9) ◽  
pp. 559-563
Author(s):  
Ilene B. Zackowitz ◽  
Alison G. Vredenburgh
Keyword(s):  
Elderly Woman ◽  
Safety System ◽  
Transportation Safety ◽  
Compound Fracture ◽  
Communication Failure ◽  
Driver Training ◽  
Wheelchair Users ◽  
Domain Experts ◽  
Transportation Service

Our firm was retained to investigate an injury sustained by an elderly woman who was confined to a wheelchair at the time of the incident. The woman was utilizing a public para-transportation service for people with disabilities when the van she was riding stopped short. As a result, she slid out of her wheelchair and suffered a compound fracture of the leg. This case went to trial with the seatbelt manufacturer and transportation entity as defendants. Looking beyond the obvious issues of seatbelt failure and driver training, this paper will examine communication as a necessary part of the safety system. Communication involves the sharing of information in a complex system where users are not domain experts. In this case, communication as part of a public para-transportation safety system is evaluated.

HFTViz: Visualization for the exploration of high frequency trading data

2021 ◽  
pp. 147387162110649
Author(s):  
Javad Yaali ◽  
Vincent Grégoire ◽  
Thomas Hurtut
Keyword(s):  
Portfolio Management ◽  
High Frequency ◽  
High Speed ◽  
High Frequency Trading ◽  
Domain Experts ◽  
Risk Return ◽  
Visualization Tools ◽  
Liquidity Measures ◽  
Trading Volumes

High Frequency Trading (HFT), mainly based on high speed infrastructure, is a significant element of the trading industry. However, trading machines generate enormous quantities of trading messages that are difficult to explore for financial researchers and traders. Visualization tools of financial data usually focus on portfolio management and the analysis of the relationships between risk and return. Beside risk-return relationship, there are other aspects that attract financial researchers like liquidity and moments of flash crashes in the market. HFT researchers can extract these aspects from HFT data since it shows every detail of the market movement. In this paper, we present HFTViz, a visualization tool designed to help financial researchers explore the HFT dataset provided by NASDAQ exchange. HFTViz provides a comprehensive dashboard aimed at facilitate HFT data exploration. HFTViz contains two sections. It first proposes an overview of the market on a specific date. After selecting desired stocks from overview visualization to investigate in detail, HFTViz also provides a detailed view of the trading messages, the trading volumes and the liquidity measures. In a case study gathering five domain experts, we illustrate the usefulness of HFTViz.

scholarly journals Railway Transport Liberalization: A Case Study of Various Countries in the World

2016 ◽  
Vol 6 (4) ◽  
pp. 140 ◽  
Author(s):  
Turgut Ozkan ◽  
Gozde Yanginlar ◽  
Salih Kalayci
Keyword(s):  
World Bank ◽  
Service Provision ◽  
Railway Transport ◽  
Railway Transportation ◽  
Market Change ◽  
Transport Services ◽  
Transportation Service ◽  
Private Participation ◽  
The World

<p>Today, the processes of restructuring the railway sector and the liberalization of the railway market change significantly. Vertical separation between infrastructure railway transportation service provision and train operations is a significant key element in the railway liberalization. This paper focuses on a research into railway regulation and liberalization in 30 countries. The aim of this paper is to give a comparative overview of the regulation of railways and analyses the process of the liberalization and restructuring of railways in the 30 countries. We test this theoretical prediction using a data base that contains investment in transport with private participation, transport services information from World Bank. Our final results are valid for the period 1980-2014. Overall, the analyses showed statistically significant interaction effects between railways transportation and transport services and investment in transport with private participation. This study presents new insights in theory, paving the way for further research.</p>

The application of quality tools in effective implementation of HACCP

2018 ◽  
Vol 35 (9) ◽  
pp. 1920-1940 ◽  
Author(s):  
Manjeet Kharub ◽  
Shah Limon ◽  
Rajiv Kumar Sharma
Keyword(s):  
Food Safety ◽  
Hazard Analysis ◽  
Safety System ◽  
Hazard Identification ◽  
Content Type ◽  
Hazard Control ◽  
Pca Method ◽  
Pharmaceutical Industries ◽  
Quality Tools

Purpose The purpose of this paper is to empirically investigate the quality tool’s impact on the effectiveness of the Hazard Analysis and Critical Control Point (HACCP)-based food safety system and correlation studies between HACCP effectiveness and business performance in food and pharmaceutical industries. Design/methodology/approach A total of 116 survey responses of prominent food and pharmaceutical firms are used to fulfil the aim of this study. The principal component analysis (PCA) method was applied to classify quality tools into a finite number of groups. Further, multiple regression methods are employed to investigate the correlation between HACCP effectiveness and firm’s performance indicators. Findings Quality tools are classified into three categories on the basis of their application by using the PCA method: quality tools for hazard identification, quality tools for hazard analysis (QTHA) and quality tools for hazard control. The regression analysis revealed that QTHA has a substantial impact on HACCP objectives (hazard identification, hazard assessment and hazard control). Additionally, the results suggest that the successful implementation of HACCP-based food safety system also delivers a direct influence on the operational and financial performance of the food and pharmaceutical industries. Originality/value This paper contributes to the existing body of HACCP knowledge by providing a framework supported by an empirical case study. The case study clustered quality tools into three broad categories related to their application of a HACCP project. Study results can guide and motivate managers to use quality tools with the aim of successful implantation of the HACCP-based food safety system, especially in food and pharmaceutical industries.

scholarly journals Forensic Engineering Analysis Of A Pickup Truck Wheel-Off Failure

2006 ◽  
Vol 23 (2) ◽  
Author(s):  
Harold Josephs
Keyword(s):  
Rear Wheel ◽  
Transportation Safety ◽  
Rare Occurrence ◽  
Engineering Analysis ◽  
Safety Hazard ◽  
Moving Vehicle ◽  
Interstate Highway ◽  
Forensic Engineering ◽  
Serious Injury

While Traveling On An Interstate Highway, A Pick-Up Truck Went Out Of Control As A Result Of The Detachment Of Its Left Rear Wheel. The Loss Of A Wheel From A Moving Vehicle Obviously Represents A Significant Safety Hazard, And, Apparently, Is Not A Rare Occurrence. Wheel Detachment From A Moving Vehicle Causes Instability Of The Vehicle, Which Can Lead To A Series Of Catastrophic Events, Resulting In Serious Injury Or Death. The National Transportation Safety Board Estimates That Approximately 750 - 1050 Reported Accidents And 40-50 Fatalities A Year Occur Due To Truck-Wheel Separations The Wheel-Off Failure Discussed Herein Resulted From The Loss Of Adequate Clamping Load On The Nut/Lug/Wheel Joint. A Case Study Is Presented Of A Vehicle Wheel-Off Failure, After More Than 2000 Miles Of Travel, Resulting From Inadequately Torqued Lug Nuts. An Analysis Is Presented To Determine The Elements Of Causation.

Case Studies of PTC-Preventable Accidents

2016 ◽  
Author(s):  
Dave Schlesinger
Keyword(s):  
Control System ◽  
Case Studies ◽  
Human Factor ◽  
Transportation Safety ◽  
Train Control ◽  
Detailed Case ◽  
Train Control System ◽  
Safety Improvement ◽  
Positive Train Control

A 1969 collision of two Penn Central train resulted in four fatalities and forty-five injuries. This accident could have been prevented, had some type of train control system been in place. After this accident, the National Transportation Safety Board (NTSB) asked the Federal Railroad Administration (FRA) to study the feasibility of requiring railroads to install some type of automatic train control system that would prevent human-factor caused accidents. Over the next almost four decades, a number of additional accidents occurred, culminating in the January, 2005 Graniteville Norfolk-Southern accident and the September, 2008 Metrolink Chatsworth accident. A little more than one month after the Metrolink accident, Congress passed the Rail Safety Improvement Act, which requires Positive Train Control (PTC). To better explain the positive train control requirements, this paper traces each to a detailed case study. Four different accidents are studied, each being an example of one of the four, core positive train control requirements. Included in the case study is a discussion about how positive train control would have prevented the accident, had it been present. This provides positive train control implementers and other railroad professionals with a better understanding of the factors that have caused or contributed to the cause of the positive train control preventable accidents studied.

User Attitudes Towards Wheelchairs: A Mexican Case Study with Special Focus on Vulnerable Wheelchair Users and Wheelchair Assistants

2019 ◽  
pp. 282-291
Author(s):  
Paulina Manzano-Hernandez ◽  
Maria Giovanna Trotta ◽  
Carlos Aceves-Gonzalez ◽  
Alberto Rossa-Sierra ◽  
Fabiola Cortes-Chavez
Keyword(s):  
Special Focus ◽  
Wheelchair Users ◽  
User Attitudes

Looking for Information-Literate Thinking in Undergraduate Subject Searching

2013 ◽  
Author(s):  
Rumi Y. Graham
Keyword(s):  
Multiple Case Study ◽  
Higher Order ◽  
Order Information ◽  
Domain Experts ◽  
Academic Subject ◽  
Premier Cycle ◽  
Multiple Case ◽  
Upper Level ◽  
Premier Cycle Universitaire

To what extent do upper-level, academically outstanding undergraduates employ the kind of higher-order information literate thinking during subject searching commonly associated with search and domain experts? This paper reports on a multiple case study exploration of this question involving eight students and their genuine academic subject searches over a school year.Dans quelle mesure les étudiants de premier cycle universitaire aux meilleurs résultats académiques emploient-ils des techniques de littératie de haut niveau communément trouvées chez les experts lors de recherches par sujet? Cette communication présente les résultats de huit études de cas menées auprès d’étudiants suivis pendant leur cheminement scolaire au cours d’une année. 

Diagnosing Macroergonomic Problems: A Case Study in the Use of Concept Mapping for TQM Initiatives

1993 ◽  
Vol 37 (12) ◽  
pp. 873-876 ◽  
Author(s):  
Brian S. Zaff ◽  
Edward R. Hughes ◽  
Michael D. McNeese ◽  
Clifford E. Brown ◽  
Maryalice Citera
Keyword(s):  
Knowledge Acquisition ◽  
Concept Mapping ◽  
Graphical Representation ◽  
Team Building ◽  
Mapping Technique ◽  
Total Quality ◽  
Group Setting ◽  
Team Members ◽  
Domain Experts

This paper presents the results from a case study involving the use of concept mapping in a Total Quality Management (TQM) program. Concept mapping is a knowledge acquisition technique that has proven successful in a variety of instances when it was necessary to elicit information directly from domain experts and communicate that information to other individuals needing the information. The concept mapping technique produces, during the course of an interview, a graphical representation that becomes a communications medium through which ideas can be easily shared in a group setting. In TQM programs it may be necessary to elicit detailed information from employees about the nature of their work domain and about the various problems they may be encountering. The success of TQM programs often depends on establishing open lines of communications through which employees can articulate their concerns and upon the ability of TQM team members to uncover hard-to-detect problems. Concept mapping proved successful in the TQM setting. The concept mapping technique facilitated the uncovering of insights that were not obvious to the TQM team during their initial brainstorming sessions or from the use of a survey. In addition it appears that the concept mapping technique has other significant TQM advantages over and above its utility as a knowledge elicitation technique. Concept mapping, not only facilitates user-centered knowledge acquisition, but also appears useful as a means of facilitating team-building.

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