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Full-Text Articles in Civil and Environmental Engineering

Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach, Muaz O. Ahmed, Islam H. El-Adaway, Kalyn T. Coatney Mar 2022

Solving The Negative Earnings Dilemma Of Multistage Bidding In Public Construction And Infrastructure Projects: A Game Theory-Based Approach, Muaz O. Ahmed, Islam H. El-Adaway, Kalyn T. Coatney

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

With the tremendous increase in spending on public projects, contractors need to employ efficient and effective bidding strategies to cope with the competitive bidding environment. Usually, general contractors carry a portion of the work and subcontract other parts to eventually submit a holistic joint bid. This bidding setting is referred to as multistage bidding where subcontractors submit their quotations/bids to the general contractor, after which the general contractor submits a final joint bid for the whole project. In a multistage bidding environment, general contractors may be faced with an increase in the probability of negative or below normal profits. Despite …

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Field Retrofit And Testing Of A Corroded Metal Culvert Using Gfrp, Mahmoud Reda Taha, Susan Bogus, Mohammed Abdellatef, Daniel Heras Murcia Mar 2022

Field Retrofit And Testing Of A Corroded Metal Culvert Using Gfrp, Mahmoud Reda Taha, Susan Bogus, Mohammed Abdellatef, Daniel Heras Murcia

Data

One of the current pressing problem for all DOTs is the corrosion-oriented deterioration of the existing metal culverts. These metal culverts typically are designed for a life of 50 years. However, corrosion is making them last no longer than 30years. Here we propose use of Glass Fiber Reinforced Polymers (GFRP) pipe section as a fit-in GFRP profile liner for complete repair and rehabilitation of the corroded metal culvert with an expected life of 75 years. This is mainly because of the corrosion free nature of the GFRP material. In the current study, the design method for using glass fiber-reinforced polymer …

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Understanding Effects Of Permafrost Degradation And Coastal Erosion On Civil Infrastructure In Arctic Coastal Villages: A Community Survey And Knowledge Co-Production, Min Liew, Ming Xiao, Louise Farquharson, Dmitry Nicolsky, Anne Jensen, Vladimir Romanovsky, Jana Peirce, Lilian Alessa, Christopher Mccomb, Xiong Zhang, Benjamin Jones Mar 2022

Understanding Effects Of Permafrost Degradation And Coastal Erosion On Civil Infrastructure In Arctic Coastal Villages: A Community Survey And Knowledge Co-Production, Min Liew, Ming Xiao, Louise Farquharson, Dmitry Nicolsky, Anne Jensen, Vladimir Romanovsky, Jana Peirce, Lilian Alessa, Christopher Mccomb, Xiong Zhang, Benjamin Jones

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

This paper presents the results of a community survey that was designed to better under-stand the effects of permafrost degradation and coastal erosion on civil infrastructure. Observations were collected from residents in four Arctic coastal communities: Point Lay, Wainwright, Utqiaġvik, and Kaktovik. All four communities are underlain by continuous ice-rich permafrost with varying degrees of degradation and coastal erosion. The types, locations, and periods of observed permafrost thaw and coastal erosion were elicited. Survey participants also reported the types of civil infrastructure being affected by permafrost degradation and coastal erosion and any damage to residential buildings. Most survey participants reported …

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Fill Materials At Integral End Bents, Charlie Sun, Tony Beckham Mar 2022

Fill Materials At Integral End Bents, Charlie Sun, Tony Beckham

Kentucky Transportation Center Research Report

Jointless bridge designs have become increasingly popular due to their low construction and maintenance costs. But this design carries risks. Most notably, integral end bents can be displaced and undergo settlement due to soil movement in embankments and loads carried by the superstructure. In response, the Kentucky Transportation Cabinet (KYTC) devised a novel treatment for end bent and abutment backfills on low- and middle-span concrete bridges in which elasticized geofoam is placed between geosynthetically confined soil and an integral end bent (GCS-IEB). However, this design requires modification where the elasticized geofoam and overlying pavement meet. Using elasticized geofoam is also …

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Electric Vehicles: Analysis Of Revenue Issues And Charging Station Implementation Plans, Chris Van Dyke, Bryan Gibson, Ryan Griffith, Andrew Martin, Jeeyen Koo, Doug Kreis Mar 2022

Electric Vehicles: Analysis Of Revenue Issues And Charging Station Implementation Plans, Chris Van Dyke, Bryan Gibson, Ryan Griffith, Andrew Martin, Jeeyen Koo, Doug Kreis

Kentucky Transportation Center Research Report

No abstract provided.

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Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China, Pengfei Xu, Weifeng Li, Xianbiao Hu, Hangbin Wu, Jian Li Mar 2022

Spatiotemporal Analysis Of Urban Road Congestion During And Post Covid-19 Pandemic In Shanghai, China, Pengfei Xu, Weifeng Li, Xianbiao Hu, Hangbin Wu, Jian Li

Civil, Architectural and Environmental Engineering Faculty Research & Creative Works

Coronavirus Disease 2019 (COVID-19) has become one of the most serious global health crises in decades and tremendously influence the human mobility. Many residents changed their travel behavior during and after the pandemic, especially for a certain percentage of public transport users who chose to drive their owned vehicles. Thus, urban roadway congestion has been getting worse, and the spatiotemporal congestion patterns has changed significantly. Understanding spatiotemporal heterogeneity of urban roadway congestion during and post the pandemic is essential for mobility management. In this study, an analytical framework was proposed to investigate the spatiotemporal heterogeneity of urban roadway congestion in …

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Living Off The Grid With Renewable Energy: A Case Study, Jake Reid O'Balle Mar 2022

Living Off The Grid With Renewable Energy: A Case Study, Jake Reid O'Balle

Construction Management

The trend towards green, sustainable living is on the rise and the benefits are continuing to make noise in the world of homeowners. In this project, the benefits of renewable energy and consumer preferences were analyzed and applied to off-grid living in the form of a case study. It was found that the majority of homebuyers are concerned about the environment and wanted an environmentally friendly home but are not willing to pay more in order to achieve these desires. This information spurred the need for a detailed assessment of the feasibility of sustainable off-grid living. After conducting extensive research, …

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A Case Study Comparing Panelization And Modularization Construction Methods, Tuukka Juhani Jaakkola Mar 2022

A Case Study Comparing Panelization And Modularization Construction Methods, Tuukka Juhani Jaakkola

Construction Management

Construction industry is notoriously inefficient industry with a lot of room for improvement. Construction companies are constantly looking to increase their efficiency. NCC Finland decided to explore the method of modular construction as part of the efforts to increase production. NCC also happened to build a similarly sized project with the more traditional method of panelization and tilt-up construction. This Case study explores the experience of NCC as the general contractor of both projects. The aim is to understand the differences of the challenges and benefits experienced by the team from NCC. The findings show that Modular construction offers wide …

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Investigating Student Interest In The Addition Of A Construction Law Topics Course, Flint D. Merrill-Gehrke Mar 2022

Investigating Student Interest In The Addition Of A Construction Law Topics Course, Flint D. Merrill-Gehrke

Construction Management

In the Construction Management program, our goal is to prepare for the responsibilities imposed upon us during a construction project. A major responsibility among these is navigating the complex legal relationships inherent to a construction project. While Cal Poly offers one Construction Law course, students are underprepared for what they will face. This project is designed to gauge interest from the Cal Poly Construction Management student body in the addition of a Construction Law topics course. It also aims to understand if additional legal studies would better prepare students for their entrance into the industry. Students were asked to answer …

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Creating A Demolition Topic Course, Eli Jeremiah Lipton Mar 2022

Creating A Demolition Topic Course, Eli Jeremiah Lipton

Construction Management

Demolition is as old as construction itself and has always played an integral role in the construction process. That is, however, not the reality of the Construction Management (CM) program at California Polytechnic State University (Cal Poly). The current curriculum covers a wide range of topics and prepares students to be able to join any residential, commercial, and heavy civil projects. These projects all have something in common, the demolition process. Undergraduates are not prepared with the basic demolition knowledge to be successful in the industry. Demolition is overlooked at Cal Poly and is not a primary focus in any …

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The Development And Evaluation Of A New Trench Safety Equipment, Joshua D. Clesi Mar 2022

The Development And Evaluation Of A New Trench Safety Equipment, Joshua D. Clesi

Construction Management

One of the most dangerous works in construction is trench work and excavation. Fatalities that range from permanent injuries to death happen to construction workers every day, not having a lot of alternatives to prevent unfortunate incidents such as cave-ins and shoring failures. What this paper is proposing is a new invention that may solve this ongoing problem with trench safety. The idea is a crane-like lift attached to the back of a pick-up truck that will vertically lift people out of the trenches in a matter of seconds before shoring collapses or the trench caves in. This project primarily …

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The Integration Of Virtual Reality In The Commercial Construction Industry, Justin T. Gin Mar 2022

The Integration Of Virtual Reality In The Commercial Construction Industry, Justin T. Gin

Construction Management

Virtual reality has recently been spreading throughout the commercial construction industry rapidly. Some of its capabilities are safety training, helping spot Americans with Disabilities Act (ADA) issues, logistics planning, and virtual walkthroughs. Many construction companies were starting to utilize virtual reality's advantages until COVID-19 hit. The initial wave of COVID slowed down construction in general as well as the need or use of virtual reality. Now, some companies are worried about the health risks and implementation issues that virtual reality headsets might bring while other companies are optimistic about the future of virtual reality. This report will explore the different …

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Using Project Production Methodology To Compare Onsite Prefabrication Steel Erection To Traditional Stick-Built, Corinne R. Nalder Mar 2022

Using Project Production Methodology To Compare Onsite Prefabrication Steel Erection To Traditional Stick-Built, Corinne R. Nalder

Construction Management

Project production management provides continuity, predictability, and optimization of a process in comparison to the traditional approach of project management. Prefabrication is an example of project production management in which there is continuity of the product, reduced variability, and where the assembly process can be altered for best results. This paper will examine the benefits of project production management and compare two methods of steel erection in which one method performs an onsite prefabrication process while the other method employs the traditional stick-built process. The two methods will be modeled by a tool that replicates a repetitive process similar to …

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Analysis Of The Potential Structure Of A Peer Mentorship Program For The Construction Management Department At Cal Poly, Slo, Jane C. Runte Mar 2022

Analysis Of The Potential Structure Of A Peer Mentorship Program For The Construction Management Department At Cal Poly, Slo, Jane C. Runte

Construction Management

The Construction Management Department at Cal Poly, SLO has no structured peer mentorship program as of 2022. The department has attempted to implement a peer mentoring program in the past but none with longevity. This paper analyzes data collected from the students of the CM Department through a qualitative and quantitative survey regarding the need and structure of a peer mentorship program to begin again. The survey’s main goal was to gain an understanding of whether or not the students think the department should implement a peer mentorship program and the structure that the student body would find most beneficial …

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Sustainability Within Asphalt And Concrete Paving Systems, Matthew Clapp Mar 2022

Sustainability Within Asphalt And Concrete Paving Systems, Matthew Clapp

Construction Management

The construction industry is continually determining ways to make the building process more streamlined, cost efficient and, more recently, sustainable. As the commercial construction industry becomes more structured, industry leaders are looking for new ways to make installation of materials and cleanup more environmentally friendly. Construction is responsible for a large portion of the overall harm toward the environment. Although the commercial sector has made great strides toward this effort in the last fifty years with programs such as LEED, there is still much to be taken into consideration. The goal of this research is to analyze the current trends …

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Gnss Construction Surveying, Jake C. Carter Mar 2022

Gnss Construction Surveying, Jake C. Carter

Construction Management

This Senior Project examines world of cutting-edge surveying technology which will be implemented into Cal Poly’s Construction Management 239 Construction Surveying course. It creates a field exercise for student learning that mimics the application the of Global Navigation Satellite Systems (GNSS) and how they are used in the construction industry. The new exercise includes the use of GNSS receivers, base hubs, field computers, and a Topcon MAGNET Field application. From the research phase to the training/learning phase to the implementation of the assignment into the course this project embodied the “Learn-By-Doing” philosophy. This project was successful in demonstrating how GNSS …

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Introduction To A Demolition Topics Course, Scott Martin Mar 2022

Introduction To A Demolition Topics Course, Scott Martin

Construction Management

The California Polytechnic State University (Cal Poly) Construction Management (CM) program was created to allow graduates the opportunity to work effectively in practically every part of the construction industry. The curriculum covers a wide range of topics and prepares students with the ability to join various projects, such as residential, commercial, and heavy civil projects. What these projects all have in common, a topic almost entirely ignored at Cal Poly but nonetheless very important and relevant, is demolition in the construction industry. By offering a course focused entirely on the demolition process, principles, and safety, students will be better prepared …

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Proposal For Adobe Earthbag Disaster-Relief Structure, John Camacho Mar 2022

Proposal For Adobe Earthbag Disaster-Relief Structure, John Camacho

Construction Management

The science behind creating an adobe house has been around for thousands of years; the primitive mixture contains only dirt, water, and straw. Left to cure in bricks or as a single cast-in-place system, the structure will provide long-lasting protection from the elements. Science has taken this a step further with the introduction of cementitious admixtures and reinforcement. The result is an adobe structure with exemplary thermo-retentive properties and load-bearing capabilities. This project provides an analysis on the “SuperAdobe” earthbag system that has been put into practice by independent contractors and housing-relief initiatives. The goal of the project was to …

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Using Flight Simulation As A Convenient Method For Uas Flight Assessment For Contractors, Colin Dees, Joseph M. Burgett Mar 2022

Using Flight Simulation As A Convenient Method For Uas Flight Assessment For Contractors, Colin Dees, Joseph M. Burgett

The Professional Constructor

Operating an unmanned aircraft system (UAS) for commercial purposes in the United States requires the pilot to pass the Federal Aviation Administration’s (FAA’s) knowledge exam to earn their UAS license. The exam does not include a practical component where flight proficiency is assessed. This represents a source of risk for contractors if flight proficiency is not evaluated in another way. The National Institute of Standards and Technology is a federal agency and has developed the Basic Maneuvering Test (BMT). It is the only nationally recognized UAS flight proficiency exam. While not required, the construction industry can benefit by using this …

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The Preconstruction Of Sustainable Housing In Muhanga, Rwanda, Rachael Worstman Mar 2022

The Preconstruction Of Sustainable Housing In Muhanga, Rwanda, Rachael Worstman

Construction Management

This project involved the designing and building process of a sustainable, environmentally sound housing option designed for the people of Muhanga, Rwanda. This project was initially inspired by the Earthships built in New Mexico. During the design process the Earthships' design and materials used was evaluated, then altered to better suit Rwanda based on the available natural resources and needs of the people. Rwandans have endured a traumatic history and still experiences struggle today. An example of this is the anti-thatching campaign in 2011 that left thousands of people homeless as they were forced out of their unsafe homes. One …

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Construction Management Students Using Technology In The Field, Anthony D. Bongi Mar 2022

Construction Management Students Using Technology In The Field, Anthony D. Bongi

Construction Management

This research paper examines the affect technology has had on the desire for college graduates to pursue a career in the field. The idea of college graduates entering directly into a field leadership position was contemplated and discussed. Historically, soft skills such as leadership and communication have been the predominate attributes of any worker expected to run construction in the field. While the importance of these skills hasn’t changed, the importance of technological skills has increased to be considered alongside soft skills. Through an anonymous survey of industry professionals with 10+ years of experience as well as interviews of two …

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Sustainable Building Techniques In Levi’S Stadium: A Case Study, Sean Zweigle Mar 2022

Sustainable Building Techniques In Levi’S Stadium: A Case Study, Sean Zweigle

Construction Management

This study aimed to analyze the sustainability of Levi’s Stadium in Santa Clara, California through an analysis of its Leadership in Energy and Environmental Design or LEED certification. Levi’s Stadium was the first professional sports stadium to receive LEED Gold certification in 2014, at a time where a focus on green building practices was becoming an industry standard. This analysis aims to determine what avenues the project team employed to ensure certification, including various standout features and strategies. Additionally, the study investigates the scorecard used to award points towards LEED certification, highlighting categories emphasized in design and construction and those …

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Biogeosciences Perspectives On Integrated, Coordinated, Open, Networked (Icon) Science, D. Dwivedi, A. L.D. Santos, M. A. Barnard, T. M. Crimmins, A. Malhotra, K. A. Rod, K. S. Aho, S. M. Bell, B. Bomfim, F. Q. Brearley, H. Cadillo-Quiroz, J. Chen, C. M. Gough, E. B. Graham, C. R. Hakkenberg, L. Haygood, G. Koren, E. A. Lilleskov, L. K. Meredith, S. Naeher, Z. L. Nickerson, O. Pourret, H. S. Song, M. Stahl, N. Taş, R. Vargas, S. Weintraub-Leff Mar 2022

Biogeosciences Perspectives On Integrated, Coordinated, Open, Networked (Icon) Science, D. Dwivedi, A. L.D. Santos, M. A. Barnard, T. M. Crimmins, A. Malhotra, K. A. Rod, K. S. Aho, S. M. Bell, B. Bomfim, F. Q. Brearley, H. Cadillo-Quiroz, J. Chen, C. M. Gough, E. B. Graham, C. R. Hakkenberg, L. Haygood, G. Koren, E. A. Lilleskov, L. K. Meredith, S. Naeher, Z. L. Nickerson, O. Pourret, H. S. Song, M. Stahl, N. Taş, R. Vargas, S. Weintraub-Leff

Department of Agricultural and Biological Systems Engineering: Faculty Publications

This article is composed of three independent commentaries about the state of Integrated, Coordinated, Open, Networked (ICON) principles in the American Geophysical Union Biogeosciences section, and discussion on the opportunities and challenges of adopting them. Each commentary focuses on a different topic: (a) Global collaboration, technology transfer, and application (Section 2), (b) Community engagement, community science, education, and stakeholder involvement (Section 3), and (c) Field, experimental, remote sensing, and real-time data research and application (Section 4). We discuss needs and strategies for implementing ICON and outline short- and long-term goals. The inclusion of global data and international community engagement are …

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Modeling Multimodal Access To Primary Care In An Urban Environment, Danielle Eden Del Conte, Amanda Locascio, Joseph Amoruso, Margaret L. Mcnamara Mar 2022

Modeling Multimodal Access To Primary Care In An Urban Environment, Danielle Eden Del Conte, Amanda Locascio, Joseph Amoruso, Margaret L. Mcnamara

Civil and Environmental Engineering Faculty Research and Publications

Access to primary health care facilities is a key component of public health, and measuring that access is vital to understanding how to target interventions. Transportation is one dimension of access and measuring distance via multiple modes allows better understanding of how varied populations access health care, particularly those who do not have access to a personal vehicle. This work builds on the 2-Step Floating Catchment Area (2SFCA) method to include travel by car, bus, bicycle, and walking. Travel time data are sourced from OpenStreetMap and transit data incorporates stop and schedule information from the General Transit Feed Specification (GTFS). …

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Critical Evaluation Of Construction Industry-Related Additive Manufacturing Research: A Scientometric Analysis, Tyler J. Brunjes Mar 2022

Critical Evaluation Of Construction Industry-Related Additive Manufacturing Research: A Scientometric Analysis, Tyler J. Brunjes

Theses and Dissertations

Review of construction-related AM literature is used to identify the advantages, challenges, and current trends of the research. Using a scientometric analysis of 522 bibliographic records, this research systematically analyzed construction related AM research to determine the key research areas and trends. Results showed that starting in 2015, the field has been growing at an exponential rate. Recent AM research focused on materials and reinforcement topics, which matched the most notable challenges of AM, which are material rheology, reinforcement, and lacking construction standards. This study provides an insight into AM research and identifies areas requiring more innovation before its commercial …

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Investigating The Relationship Of Preventive And Corrective Maintenance In Chiller Assets Using Linear Regression Analysis, Jacob A. Franke Mar 2022

Investigating The Relationship Of Preventive And Corrective Maintenance In Chiller Assets Using Linear Regression Analysis, Jacob A. Franke

Theses and Dissertations

Asset managers must balance maintenance plans between preventive (PM) and corrective maintenance (CM). While PM plans have been a staple for decades, the benefits achieved have not been thoroughly examined at the asset specific level. This study focuses on the U.S. Air Force chiller portfolio to better understand the relationship between PM and CM, utilizing multiple stages of linear regression modeling and data from 14 US Air Force installations. PM and CM were found to be positively correlated, with PM accounting for relatively small portions of the variance experienced in CM. This study reveals the value of standardized data collection …

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A Critical Review Of Climate Change On Coastal Infrastructure Systems, Gregory J. Howland Jr. Mar 2022

A Critical Review Of Climate Change On Coastal Infrastructure Systems, Gregory J. Howland Jr.

Theses and Dissertations

This thesis is a response to climate threats identified by DoD report on Climate Change in 2019. A critical review of climate change literature related to coastal infrastructure was conducted to synthesize past research and to inform future research. This review intends to inform how climate change may impact infrastructure systems, how those impacts are evaluated, can the investigation be improved, and what can stakeholders learn from the outcomes. The end goal is to find climate change mitigation strategies and adaptation measures, or identify the easiest path to get to that end. The compiled information will inform civilian and military …

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A Framework For Assessing Facility-Level Vulnerability And Risk To Extreme Weather Events, Blake A. Gawlik Mar 2022

A Framework For Assessing Facility-Level Vulnerability And Risk To Extreme Weather Events, Blake A. Gawlik

Theses and Dissertations

Intensifying extreme weather events, tied to the rise in the global average temperature, put global built infrastructure at risk. This presents a daunting challenge for organizational leaders who are tasked to determine how best to adapt current infrastructure to uncertain future events. To develop adaptation plans and policies, vulnerability and risk must be downscaled to an actionable scale, such that planners, designers, and engineers can make adaptation recommendations. However, previous research has largely assessed risk at coarser scales, e.g., regional, national, or global. These assessments are informative, but do not help those tasked to lead adaptation to make detailed, actionable …

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Quantifying Project Complexity To Resource Project Managers, Jereme R. Henrard Mar 2022

Quantifying Project Complexity To Resource Project Managers, Jereme R. Henrard

Theses and Dissertations

This research develops a multi-criteria decision analysis model to quantify project complexity and inform decision-makers in resource-constrained organizations with the Tyndall Program Management Office (PMO) as a case study. The complexity score is used as a risk metric to determine the appropriate number of skilled or novice project managers to effectively manage the PMO portfolio to mitigate cost and schedule overruns. The research provides an innovative approach to consider manning levels at the PMO and other project management-focused organizations/sections.

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Climate Change Risk To Coastal Airfield Stormwater Systems, Jedidiah R. Langlois Mar 2022

Climate Change Risk To Coastal Airfield Stormwater Systems, Jedidiah R. Langlois

Theses and Dissertations

Climate change is resulting in rising sea levels and increased rainfall, posing new challenges to stormwater management, particularly along coastlines. The airfield stormwater systems of Tyndall Air Force Base discharge directly into an interior bay of the Gulf of Mexico through tidal canals and ditches, creating a risk of system inundation from high tidewater conditions from sea-level rise (SLR). This study explores the performance and consequences of an inundated stormwater system from SLR during rainfall events using the EPA’s Stormwater Management Model (SWMM). One hundred and fifty-three combinations of SLR and return year storms were applied to a model of …

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