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Full-Text Articles in Civil Engineering

Frameworks For Systemic And Structural Analysis Of Financial Innovations In Infrastructure, Ali Mostafavi, Dulcy M. Abraham Nov 2010

Frameworks For Systemic And Structural Analysis Of Financial Innovations In Infrastructure, Ali Mostafavi, Dulcy M. Abraham

Infrastructure System-of-Systems (I-SoS ) Research Group

Financial innovations have emerged globally to close the gap between the rising global demand for infrastructures and the availability of financing sources offered by traditional financing mechanisms such as fuel taxation, tax-exempt bonds, and federal and state funds. The key to sustainable innovative financing mechanisms is effective policymaking. This paper discusses the theoretical framework of a research study whose objective is to structurally and systemically assess financial innovations in global infrastructures. The research aims to create analysis frameworks, taxonomies and constructs, and simulation models pertaining to the dynamics of the innovation process to be used in policy analysis. Structural assessment …


An Improved Framework For Dynamic Origin-Destination (O-D) Matrix Estimation, Hongbo Chi Nov 2010

An Improved Framework For Dynamic Origin-Destination (O-D) Matrix Estimation, Hongbo Chi

FIU Electronic Theses and Dissertations

This dissertation aims to improve the performance of existing assignment-based dynamic origin-destination (O-D) matrix estimation models to successfully apply Intelligent Transportation Systems (ITS) strategies for the purposes of traffic congestion relief and dynamic traffic assignment (DTA) in transportation network modeling. The methodology framework has two advantages over the existing assignment-based dynamic O-D matrix estimation models. First, it combines an initial O-D estimation model into the estimation process to provide a high confidence level of initial input for the dynamic O-D estimation model, which has the potential to improve the final estimation results and reduce the associated computation time. Second, the …


Evaluating The Appropriateness Of Project Delivery Systems For Different Trenchless Methods, Ali Mostafavi, Tom Iseley, Dulcy Abraham May 2010

Evaluating The Appropriateness Of Project Delivery Systems For Different Trenchless Methods, Ali Mostafavi, Tom Iseley, Dulcy Abraham

Infrastructure System-of-Systems (I-SoS ) Research Group

Trenchless methods have been considered to be a viable solution for pipeline projects in urban areas. Their applicability in pipeline projects is expected to increase with the rapid advancements in technology and emerging concerns regarding social costs related to trenching methods. Selecting appropriate project delivery system (PDS) is a key to the success of trenchless projects. To ensure success of the project, the selected project delivery should be tailored to trenchless project specific characteristics and owner needs, since the effectiveness of project delivery systems differs based on different project characteristics and owners requirements. Since different trenchless methods have specific characteristics …