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Full-Text Articles in Construction Engineering and Management
Exploratory Analysis Of Accuracy Monitoring Techniques In Vehicle Detection Systems For Intelligent Transportation Systems Applications And Maintenance, Manasi Sanjay Palod
Exploratory Analysis Of Accuracy Monitoring Techniques In Vehicle Detection Systems For Intelligent Transportation Systems Applications And Maintenance, Manasi Sanjay Palod
Theses and Dissertations
The goal of transportation management is to ensure the mobility of people and goods, in a reliable and efficient manner. Operation and maintenance of transportation infrastructure is key to accomplish their objectives. Intelligent Transportation Systems (ITS) applications rely on massive detection networks that collectively demand significant maintenance resources. Resource constraints force transportation agencies to look for innovative ways to optimize their operational and maintenance costs while serving their users at intended performance levels. The system inputs come from vehicle detection system (VDS), acting as field data collection devices, enabling traffic monitoring and management through response to specific conditions. This research …
Simulation Based Cost-Benefit Analysis For The Inspection Of Highway Bridges Using Small Unmanned Aerial Systems, Rashmi Kadamkulangara Balagopalan
Simulation Based Cost-Benefit Analysis For The Inspection Of Highway Bridges Using Small Unmanned Aerial Systems, Rashmi Kadamkulangara Balagopalan
Theses and Dissertations
Visual inspections remain significantly important in surveying the present decay and deterioration status of bridge inspections. These inspections are critical to conduct patch-up remedies and maintenance assignments to guarantee the continued serviceability of structures. Given the high inventory of bridges nationwide (over of 600,000 bridges), increasing costs of bridge inspections are becoming a concern for departments of transportation (DOTs). The conventional inspection method is costly due to various factors. For example, the current approach often requires specialized equipment (e.g., bucket trucks) to conduct underside bridge inspections that significantly affect safety levels on the field and overall costs, and inspectors need …
Evaluating Contingency Construction Methods: A Delphi Study, William E. Bentley
Evaluating Contingency Construction Methods: A Delphi Study, William E. Bentley
Theses and Dissertations
The purpose of this research was to evaluate which existing RED HORSE vertical construction system was “best” suited for contingency operations and the relative pros/cons/challenges associated with each. RED HORSE units, having existed for over 50 years, currently have 4 active duty squadrons currently employed overseas in multiple military contingency environments. Based on site visits, it was established that the Ultimate Building Machine (UBM)/K-Span, Professionally Engineered Buildings (PEB), and the FrameCAD system are the three most prevalent vertical construction systems/methods in use by RED HORSE. Fourteen Subject Matter Experts (SME) from across the Air Force participated in a Delphi study …
The Use Of Evidence-Based Design In Hospital Renovation Projects, David S. Whitaker
The Use Of Evidence-Based Design In Hospital Renovation Projects, David S. Whitaker
Theses and Dissertations
Since the 1960s, researchers have been exploring how the design of the built environment impacts the health and well-being of occupants and users. By the 1980s, further research began to focus on healthcare facilities in particular and how design could influence patient healing and medical staff performance (Alfonsi, 2014). Evidence-Based Design (EBD) is "the process of basing decisions about the built environment on credible research to achieve the best possible outcomes" (CHD, 2016). The desired outcomes of Evidence-Based Design recommendations include improvements in the following: patient healing, patient experience and comfort, medical staff performance, and medical staff job satisfaction (CHD, …
Mechanical Properties Of Inconel 718 Processed Using Electron Beam Free Form Fabrication (Ebf3), Brent R. Waters
Mechanical Properties Of Inconel 718 Processed Using Electron Beam Free Form Fabrication (Ebf3), Brent R. Waters
Theses and Dissertations
Electron beam freeform fabrication (EBF3) is a rapid metal deposition process that works efficiently with the wieldable alloy Inconel 718 (IN 718). EBF3 is a developing additive manufacturing (AM) process that can manufacture IN 718 parts directly from computer aided design (CAD) data. EBF3 can produce parts significantly faster and more energy efficient than competing IN 718 AM technologies. The EBF3 process utilizes metal wire feedstock which is induced into a molten pool using a focused electron beam in a vacuum environment. This allows parts to be built layer by layer, creating intricate shapes that …