154 research outputs found

    Effects of highway geometric elements on accident modelling

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    The tremendous traffic growth generally observed in road transportation has led to a lot of negative consequences in the form of road accidents both in developed and developing countries. This observation calls for considerable attention towards development a system for the road safety mechanism of rural highway. Road accident prediction plays an important role in accessing and improving the road safety. Fuzzy logic is one of the popular techniques in the broad field of artificial intelligence and ability to improve performance similar to human reasoning and describe complex systems in linguistic terms instead of numerical values. In this thesis, a system was established based on Fuzzy Inference System (FIS) in which output data such as traffic Accident Rate (AR) and input data such as various highway geometric elements. The study was conducted on two road segments from plain & rolling terrain highway and two road segments from mountainous & steep terrain highway within the rural area of the Indian Territory. Two Highway Accident Rate Prediction Models (HARPMPRT and HARPMMST) were developed due to the complexity of geometric elements of rural highway on different terrain conditions which take horizontal radius, superelevation, K-value, vertical gradient and visibility as input variables and Accident Rate (AR) as output variables. The findings show that the proposed model can be effectively applied as a useful Road Safety tool capable of identifying risk factors related to the characteristics of the road and great support to the decision making of incident management in Intelligent Transportation Systems. Significant positive relationships were also identified between the geometric elements and accident rate. A simulation study and real life data analysis are performed to demonstratemodel fitting performances of the proposed model

    Report of inquiry into safety in the long haul trucking industry.

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    Risk Management for the Future

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    A large part of academic literature, business literature as well as practices in real life are resting on the assumption that uncertainty and risk does not exist. We all know that this is not true, yet, a whole variety of methods, tools and practices are not attuned to the fact that the future is uncertain and that risks are all around us. However, despite risk management entering the agenda some decades ago, it has introduced risks on its own as illustrated by the financial crisis. Here is a book that goes beyond risk management as it is today and tries to discuss what needs to be improved further. The book also offers some cases

    DHAKA: ASPIRATIONS OF THE CONCEALED

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    Ph.DDOCTOR OF PHILOSOPH

    Risk Management

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    Every business and decision involves a certain amount of risk. Risk might cause a loss to a company. This does not mean, however, that businesses cannot take risks. As disengagement and risk aversion may result in missed business opportunities, which will lead to slower growth and reduced prosperity of a company. In today's increasingly complex and diverse environment, it is crucial to find the right balance between risk aversion and risk taking. To do this it is essential to understand the complex, out of the whole range of economic, technical, operational, environmental and social risks associated with the company's activities. However, risk management is about much more than merely avoiding or successfully deriving benefit from opportunities. Risk management is the identification, assessment, and prioritization of risks. Lastly, risk management helps a company to handle the risks associated with a rapidly changing business environment

    Exploring 'smart citizenship' as a socio-technical ecology: the case of Oxfordshire, UK

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    Critical social science scholarship on ‘smart citizenship’ has thus far emphasised ‘bottom-up’ participation as a democratising antidote to ‘top-down’ corporate or state-led smart cities. It is implied that contesting these powerful smart actors involves increasing the degree of citizen participation in smart programmes or projects and by enabling greater political agency in grassroots or citizen-centric alternatives. In this thesis, I emphasise the multiple and heterogenous ways ‘smart citizenship’ is enacted through a diverse set of discourses, practices, and materialities. Approaching these collectives as ‘socio-technical ecologies’, I seek to move beyond existing dichotomies that frame smart citizenship as either a condition of technologically-mediated authoritarian control (top-down) or of increased democratic participatory processes (bottom-up). My approach, I argue, helps to account for a wider set of interrelated ways in which citizenship is negotiated in actually-existing contexts of the smart city. The thesis draws on empirical materials generated through a study of how the UK county of Oxfordshire is being made ‘smart’. In doing so, I identify four overlapping, interconnected ways in which smart citizenship is constituted through ecologies of discourses, practices and materialities. The first is a type of ‘informational’ smart citizenship, which is centred on establishing and mobilising a fairly familiar mix of participatory deliberative engagement practices, procedures, and technologies. The second is the primarily discursive framing of citizens as living lab ‘beneficiaries’ who accrue relative advantages from experiments with technological products or services. Beneficiary citizens are enrolled in political-economic discourses of innovation to legitimise imaginaries of anticipated smart futures. The third raises the importance of 'expert' citizenship, which is deployed by partners to constitute local tech workers as experts engaged in making Oxford smart. I finally consider the ‘sim’ citizenships produced from machine learning methods of data analysis generative of road actor behaviour models for digital twin modelling. Sim citizens, calibrated by smart city data, populate the digital twin for iterative validation and verification testing of automated driving systems. The thesis altogether contributes to scholarly understandings of smart city citizenship by identifying emerging sets of relations between humans and technologies in digitally-mediated cities

    13th International Postgraduate Research Conference 2017 : conference proceedings

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    Welcome to the 13th International Postgraduate Research Conference (IPGRC 2017) hosted by the School of the Built Environment at University of Salford, UK. This year’s IPGRC is organised as part of the International Research Week 2017- ‘Shaping Tomorrow’s Built Environment: Construction and Design for the Modern World’ and also the year we celebrate the 50th anniversary of Salford as a University, which makes this year’s conference very special. This conference creates a unique opportunity for researchers from Salford and other parts of the world to share their research interests, and outputs and to network and interact within a professional and friendly environment, with high profile academics and leaders within the built environment. This year’s conference brings together participants from a number of countries including the UK, USA, Australia, New Zealand, Canada, Sri Lanka, Hong Kong, Iran, Italy, Ireland, Norway, India, Brazil, South Korea, Nigeria, Turkey, UAE, South Africa, Iraq, Ghana, Estonia, Saudi Arabia and many more. The conference received over 100 papers and posters covering the following themes: • Business, Economics and Finance • Property and Project Management • ICT, Technology and Engineering • People, Skills and Education • Design and Urban Development • Sustainability and Environmental Systems Conference will provide a forum for novel discussions into the development and application of new and emerging practices to challenge current design and construction practice in the areas of people, process and technology issues. On behalf of School of the Built Environment, the conference co-chairs and organisers, we wish you an enjoyable and fruitful experience. We hope that you will obtain useful feedback to your research work, gain insight from work of others and forge connections for future
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