Thesis (M.B.A.)--Naval Postgraduate School, March 2004. / Thesis advisor(s): Brian D. Steckler, George W. Thomas, Juliette A. Webb. "MBA professional report"--Cover. Includes bibliographical references (p. 97-98). Also available online.

published_or_final_version / Business Administration / Master / Master of Business Administration

Thesis (M.B.A.)--University of Hong Kong, 1994. / Includes bibliographical references (leaves 84-85).

Most of the wastes produced in the developing countries are low- and intermediate-level wastes. These wastes are initially stored on-site. Since applications using of the radioactive materials is increasing, in some countries, the radioactive wastes are accumulating to the point that the initial on-site storage has to be expanded. In order to increase interim storage capacity, existing capacity must be increased or replaced with a new permanent facility. The waste management system cost must be considered to achieve the most cost effectiveness. The management of radioactive waste includes every step in the system from the waste generator to the final disposal. The major costs in the waste system are: processing costs, transportation costs, and burial costs. However, modification of one step to reduce its cost may impact other costs in the system and even increase total costs as well. Computer models have been developed that simulate the entire system so that interactive may be evaluated to determine for estimating the generic total waste system cost and average unit disposal cost. The radioactive waste materials produced in Thailand are used as input data to test the models. The preliminary site screening and site design study to identify the potentially suitable site areas are also performed in this study. The sensitivity analyses obtained from the disposal model show that the rate of return or interest rate, the operating cost and the capital costs affect the disposal unit cost. The development, and postoperating period do not affect on the disposal unit cost. The results obtained from system cost model show that type of waste, volume reduction factor, and treatment technology affect the waste management system cost.

Thesis (M.S. in Management) Naval Postgraduate School, June 1997. / Thesis advisors, Katsuaki L. Terasawa, John E. Mutty. AD-A333 401. Includes bibliographical references (p. 95). Also available online.

Due to the increased scrutiny of construction costs for infrastructure projects by the public and legislators, it is becoming increasing important for project developers to prepare accurate conceptual cost estimates for transportation tunnel projects at the feasibility stage to aid in making investment decisions. Past studies have emphasized that tunnel-project costs have been significantly underestimated, and cost uncertainties and risks have been identified as the cause of cost under or overestimation. A broad understanding of the factors that contribute to cost underestimation is important as it enables researchers and estimators to develop appropriate functions, evaluate, and implement them to produce realistic cost estimates. This study was aimed at developing parametric cost estimation functions and quantifying their risks for transportation tunnel projects. A comprehensive background study of more than 39 published articles on transportation tunnel infrastructure projects was conducted through a systematic literature review and 40 key estimating parameters that may impact project costs and the associated project logistics were identified. Data from completed tunnel projects were collected and used to develop the parametric cost equations. Exploratory analyses were first performed to discover the correlations among tunnel costs and tunnel cost parameters/drivers. The purpose of this effort was to assess if a relationship existed between tunnel variables and tunnel project cost estimates. Parametric cost estimation functions were then developed for different tunnel applications. There has been no comprehensive study performed to date to develop parametric cost estimation functions that incorporated risk and uncertainty for transportation tunnel projects. Two representative sample case studies were performed and Monte Carlo simulation was used to quantify the associated risks. The results from the case studies illustrate the need to use appropriate techniques to simulate tunnel costs and quantify the risks associated with the estimates. The findings of the study provide a methodology to estimate the costs of transportation tunnels and quantify the uncertainties and risks associated with the costs. The methodology developed in this research could help reduce the incidence of project cost underestimation and alleviate some of the controversies surrounding cost overruns in transportation tunnel projects.

O trabalho de mestrado propõe um método para estimar custos diretos de edificações, através da análise de fatores que comparam o edifício a ter o custo prognosticado com outro tomado como referência. Esta ferramenta é muito útil na medida em que a análise de custos durante estágios iniciais do empreendimento auxilia as empresas de Construção Civil a tomar decisões importantes, tais como a compra do terreno, o lançamento do empreendimento, a escolha da concepção arquitetônica da edificação, entre outras. O método utilizado para a elaboração desta ferramenta foi a modelagem, pois utilizou-se de análises paramétricas para descrever o funcionamento do prognóstico de custos. A simulação da ferramenta desenvolvida foi feita para o serviço de alvenaria estrutural, e envolveu levantamento bibliográfico para conhecer e quantificar os aspectos técnicos e arquitetônicos que influenciam o custo deste serviço. O método proposto, apesar de ter um desenvolvimento complexo, possui vantagens em relação a outros estudados na revisão bibliográfica, tais como: precisão, rapidez na utilização em alvenaria estrutural, entendimento de fatores influenciadores, possibilidade de atualização do método, utilização por diferentes empresas, comparação de diferentes projetos arquitetônicos. / This thesis proposes a method to forecast direct costs for multi-storey building construction. The costs are estimated by comparison to another building which costs were estimated before. The cost estimation this method provides can be very useful to improve important decisions including: land purchasing, timing to initiate marketing campaigns, and selecting architectural concepts. The approach to develop this method was modelling; parametrical analyses were used to describe the cost prognosis. The conceptual model was tested for structural masonry direct cost estimate. To do so, bibliographical survey was used in order to identify and quantify the impact of technical and architectonic parameters on the cost of this service. The proposed method, although complex, presents many advantages when compared to existing methods including: its accuracy, speed when used for structural masonry estimates, the understanding of the trigger parameters, it is easy to include new information, allows diversity of users, and its ability to compare different architectural designs.

Este trabalho apresenta parâmetros de custos para implantação de redes de infra-estrutura urbana (drenagem, pavimentação, água, esgoto, energia elétrica e arborização) em parcelamentos de solo realizados em uma cidade média do interior do estado de São Paulo. Realiza-se a análise dos sistemas de infra-estrutura, dos métodos para estimativas de custos e do processo para aprovação de projetos, decompondo e caracterizando as diversas partes constituintes. Através dos estudos de caso são apresentados os custos dos diferentes subsistemas e a incidência desses no sistema de infra-estrutura urbana como um todo. Espera-se contribuir para o entendimento dos fatores que condicionam os custos dos sistemas utilizados em cidades médias. / This paper presents cost parameters for deployment of networks of urban infrastructure (drainage, paving, water, sewage, electricity and tree planting) in a city of Sao Paulo. It performs the analysis of infrastructure systems, methods for estimating costs and the process for approving projects, decomposing and characterizing the different parts. The case studies present the costs of various subsystems and the incidence of the system of urban infrastructure as a whole. It is expected to contribute to the understanding of factors that influence the cost of the systems used in medium sized cities.

Thesis (M.S.)--Ohio University, June, 2004. / Includes bibliographical references (p. 86-87).

Thesis (M.S.)--Ohio University, June, 2004. / Title from PDF t.p. Includes bibliographical references (p. 86-87)