470 research outputs found

    Transportation Network Resiliency: A Study of Self-Annealing

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    Transportation networks, as important lifelines linking communities and goods, are indispensable for the smooth functioning of society. These networks are, however, fragile and vulnerable to natural and manmade disasters, which can disrupt their vital functionality. The role of the transportation sector becomes more crucial during disasters due to its role in pre-disaster evacuation as well as post-disaster recovery. The ability of transportation systems to retain performance during and after disasters undergoing little to no loss and their ability to return to the normal state of operation quickly after disasters defines their resilience. Authorities need to understand the degree of resilience within the transportation system under their jurisdiction and plan for improvements. In this research, attempts have been made to deal with resilience in quantitative ways to provide defensible data to decision makers to support investment strategies. Total loss in the network performance can be quantified by dealing with the variation of network performance over time after disasters and the network resilience can be measured by the ability to minimize this loss. It has been shown that robust networks retain better performance after disruptions and recovery works, which follow optimized recovery paths, in spite of constraints of resources and time, help to minimize the total losses and enhance the network resilience. The objective of this research is to create a conceptual framework to quantify resilience and discuss quantitatively the properties determining resilience of transportation networks. The concepts presented are applied to a test network to illustrate the mathematical procedures. Such methods can help decision makers analyze relative improvements in resiliency as a consequence of proposed project alternatives and help to perform benefit-cost analysis for such projects

    The Study on Estimation and Quality Control of Residential G+3 Building

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    An estimate is a computation of the quantities required and expenditure likely to beincurred the construction of a work. In any construction project, the probable cost ofconstruction which is known beforehand is known as the estimated cost. And hence it isquite essential for the arrangement of financial resources for the completion of anyconstruction project. In this project, the main aim was to find out the detailed estimate ofquantities of all the structural aspect of G+3 building. The Sunway Opus Grand Neville isa result of a joint venture between Sunway City of Malaysia and Opus of Hyderabad,India. It also aims in finding out the probable cost, or the estimated cost of the projectbased on the computation of these quantities. The structural aspects considered for theestimation of quantities are earthwork in excavation and backfilling, concrete work infoundation and in R.C.C structures such as beams, columns, slabs, staircases etc., steelreinforcement in beams, columns and other R.C.C structures and brickwork insuperstructure. The computation of quantities was carried out based on the drawings ofvarious structural elements, such as the each floor plan, footings and columns layout,beams layout, staircases layout, footing specifications and column specifications, whichhave also been provided in this document. These details provide an idea for requirementof quantities for a project and also the likely expenditure which would be needed to bearranged. This documentation also provides the abstract of the estimated cost for thestructural aspects

    Study and Analysis of Road Widening and Strengthening

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    The high growth number of vehicles will increase the movement and the use of transport infrastructure. Road widening is one of the actions that can be used as the solution. However, this solution also increases the traffic performance.This is because people will switch to use the nee road widened because they believe this road can accommodate the existing traffic volume. For finding out the effects of road widening towards the increasing of traffic performance and road capacity, it is necessary to conduct a research and an analysis.The Road network of any city is its lifeline, and the evaluation of their performance is very necessary for future traffic planning, design, operation, and maintenance etc.Traffic flow is most cities of India is mixed traffic characteristics and the traffic congestion id the common problem in most major cities in India.In this project on "widening and strengthening of the road" and aimsto widen the roads in Ranga Reddy district of Telangana. Under this project, single lane roads are modified as double lane roads. The project includes the improvement of roads connecting a particular area. Total length of the road is 18km

    Use of Case Histories to Enhance Practical Geotechnical Engineering

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    Mathematical models are constructed to describe the behavior of engineering systems in quantitative terms. During conceptualization stage of modelling several valid assumptions have to be made so as to make the model predict the behavior of the system as accurately as possible. Refinement of mathematical models need feed back from practice. Many practical cases are of interest in updating and enhancing quantitative judgment of geo-technical systems behavior. This paper envisages to present a few interesting cases where the situation forced true synthesis of theory and practice for innovation and advancement of practical geo-technical engineering
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