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Articles 8251 - 8280 of 39816
Full-Text Articles in Civil and Environmental Engineering
Journeyman International: Third Lens Ministries Development In Jonestown, Mississippi, Josh Riley De Mattei
Journeyman International: Third Lens Ministries Development In Jonestown, Mississippi, Josh Riley De Mattei
Construction Management
Jonestown, Mississippi has been known to be a place of poverty and in need of infrastructure. A nonprofit, Third Lens Ministries is developing housing for the people of Jonestown, Mississippi. Over the last 9 months, an architect Margy Maher, an engineer Autumn Wagner, as well as myself, a construction management major, have all collaborated in order to design, engineer and plan the perfect Dwelling for the people of Jonestown, Mississippi. While the scope of the project includes community centers and housing, our team’s scope was to focus on the residential development and site work. As the construction manager, my deliverables …
Paso Robles Police Department Outdoor Training Facility Improvements, Nicolas A. Petri
Paso Robles Police Department Outdoor Training Facility Improvements, Nicolas A. Petri
Construction Management
This paper will outline the pre-construction and construction processes of the Paso Robles Police Department’s outdoor training facility improvements. The project, located in East Paso Robles, focuses on 12,000 square feet of a 24,300 square foot site owned by the city of Paso Robles. This is a group project done with Gavin Abraham and Zach Stellini that remodeled an existing outdoor training facility, including over 1400 square feet of concrete flatwork, underground utilities, 80 cubic yards of decomposed granite and various site civil improvements. The purpose of this project was to provide the Paso Robles Police Department with a cleaner …
Alternatives To Oil-Based Binders For Asphalt Concrete Paving In Northern California, Parker E. Jenks
Alternatives To Oil-Based Binders For Asphalt Concrete Paving In Northern California, Parker E. Jenks
Construction Management
Every day, millions of Americans travel along highways and roadways during their everyday lives. Many people do not understand the vital impact that this infrastructure has on their day to day activities and what goes into building these roadways. The traditional process of using paving a roadway requires the use of an asphalt binder that is typically an oil-based binder. With the environmental effects of manufacturing and producing these oils, as well as the effects on the environment when the asphalt is placed, there have been a few accounts of producing an alternative asphalt binder that does not use oil. …
Development Of Bluebeam Curriculum For Construction Management Department In Virtual And In-Class Transmissions, Jacob K. Clark
Development Of Bluebeam Curriculum For Construction Management Department In Virtual And In-Class Transmissions, Jacob K. Clark
Construction Management
This paper discusses the development of two new learning modules for the California Polytechnic University, San Luis Obispo Construction Management department on Bluebeam practices and usage that reflect industry and technological changes. Adapting to and maintaining practices in distance learning, this curriculum allows for optimal online education and further advancement and clarity in in-person transmissions. With step-by-step videos for optional distance learning, students and faculty can choose to engage in alternative modes of education delivery. Building on traditional roles of construction technology education, teaching instructions are provided for faculty. This project based senior project positively impacts the body of knowledge …
Workers Head Protection Preferences In Construction, Matthew R. Langbehn
Workers Head Protection Preferences In Construction, Matthew R. Langbehn
Construction Management
Head injuries are one of the most common ways workers are injured on a construction site, but head protection has not evolved over the last few decades. A new style of head protection, a safety helmet is being introduced to better protect workers, but the new style has not been widely adopted. A survey was conducted to determine workers preferences when choosing head protection and 31 responses were collected. 68% of the respondents currently wear a safety helmet, but 60% of the respondents would choose a traditional helmet if given the choice. 73% workers with more than 5 years of …
Volumetric Modules For Mixed-Use Buildings: Logan At 51st - A Case Study, Abraham J. Ahmed
Volumetric Modules For Mixed-Use Buildings: Logan At 51st - A Case Study, Abraham J. Ahmed
Construction Management
Modular construction has been a building technique since the 16th century and has since been refined into one of today’s leading construction approaches. Modular construction is the process of manufacturing buildings or structures off-site. Modular construction is split into panelized systems which are two-dimensional system or volumetric system which are three-dimensional. This paper will examine the largest volumetric modular project, The Logan at 51st, in the Bay Area which is set to be complete by the end of 2020. This paper will outline the current modular construction trend; the different types of modular construction; the process that …
Prioritizing Mental Health Awareness In The Construction Industry, Molly E. Pryde
Prioritizing Mental Health Awareness In The Construction Industry, Molly E. Pryde
Construction Management
The construction industry is known as one of the most demanding industries for employees, both physically and mentally. Due to various factors associated with the working conditions and lifestyles of construction workers, the likelihood of mental health challenges amongst this demographic is quite high. Furthermore, industry culture surrounding masculinity poses a barrier to properly addressing the issue. Because of the dynamic and fast-paced work environment, assessing potential risks to protect workers is an integral part of each day on the job site. As a key component in company success and individual well-being, safety has become ingrained in construction culture. However, …
Home Builders’ Perception Of Virtual Inspections: A Case Study, Kyle J. Morse
Home Builders’ Perception Of Virtual Inspections: A Case Study, Kyle J. Morse
Construction Management
The COVID-19 pandemic created a new set of restrictions and safety protocols for the residential construction industry. Many jurisdictions began placing social distancing practices on inspectors, limiting their ability to visit the jobsite. The adjustment required many residential builders and inspectors to adapt to virtual inspections using videos, photographs, and recordings. As this new technology gains traction in the residential industry, questions arise regarding its benefits, drawbacks, and industry acceptance. This case study analyzes the perceptions and experiences of five separate homebuilders in Yolo County, California. Semi-structured interviews were conducted with five residential general contractors, transcribed, and thematically analyzed to …
Resequencing To Make Up Lost Time During The Covid-19 Pandemic: Case Study, Enzo Av Rienzi
Resequencing To Make Up Lost Time During The Covid-19 Pandemic: Case Study, Enzo Av Rienzi
Construction Management
Construction schedules are typically built by organizing activities according to trades as a whole. The entire foundation is poured, then the entire superstructure is erected, followed by interior framing, etc. However, for projects with an unchangeable finish date such as a school, other scheduling methods must be considered when the project is faced with uncontrollable, force majeure events which threaten to delay the project deadline. In order to examine the efficacy of alternative scheduling techniques, analysis of a $50 million school project will provide insight into how tasks can be safely overlapped to gain lost time in a schedule. This …
Implementation Of A 4d Schedule As A Project Communication Tool, Jared Jacobs
Implementation Of A 4d Schedule As A Project Communication Tool, Jared Jacobs
Construction Management
This report details the project that was completed to produce a preliminary 4D Schedule for the Alma Clark Glass Residence Hall on Western Washington University’s campus. A 4D schedule combines the 3D model of the building and the project schedule and ultimately shows the sequence of construction. The main objective of this project is to explore areas for improved communication strategies within the project team. A 4D schedule provides an added dimension of communication that has the potential, if delivered effectively, to clearly define construction milestones and sequences for an owner to understand. The goal of this project is to …
City Farm Slo - Walk-In Produce Coolbot Cooler, Connor Morinini
City Farm Slo - Walk-In Produce Coolbot Cooler, Connor Morinini
Construction Management
This paper describes the planning, financing, and construction of a commercial sized refrigerator for a non-profit urban farm in San Luis Obispo, CA, called City Farm SLO. Construction of the project occurred over a nine-month period from September of 2020 to May of 2021. The project involved building a Tuffshed, site grading, framing a room inside the Tuffshed, hanging a door, installing electricity inside the room, insulating the interior, painting the exterior, installing an air conditioner, and wiring the Coolbot to the air conditioner. The project was built to allow the non-profit organization to begin storing their agricultural crops in …
Modeling Vadose Zone Hydrology [Lecture Notes], Derek M. Heeren, Dean E. Eisenhauer
Modeling Vadose Zone Hydrology [Lecture Notes], Derek M. Heeren, Dean E. Eisenhauer
Department of Agricultural and Biological Systems Engineering: Faculty Publications
Modeling Vadose Zone Hydrology is a graduate-level course offered biennially in the Department of Biological Systems Engineering. Topics included hydraulic properties of porous media, application of Darcy's Law in variably saturated media, hydrologic and transport processes in the vadose zone, and solution of steady and unsteady flow problems using numerical techniques. A graphical approach for characterizing vertical one-dimensional problems with energy head profiles was emphasized. Common one-dimensional flow and transport problems were solved analytically. The course was taught using a combination of lecture notes and PowerPoint presentations. The lecture notes from 2021, captured using the Microsoft Whiteboard app with a …
Comprehensive Characterization Of The Aerosol And Cloud Condensation Nuclei In The Uae, Farah Hassan Abdi
Comprehensive Characterization Of The Aerosol And Cloud Condensation Nuclei In The Uae, Farah Hassan Abdi
Theses
Cloud seeding has emerged as a significant alternative freshwater source in the United Arab Emirates (UAE). It is employed to manipulate weather conditions and increase precipitation in specific target regions. These efforts aim to densify clouds and enhance the likelihood of rainfall by inducing nucleation. This technique involves an operational crew aboard an aircraft that disperses substantial quantities of seeding particles, such as salts or silver iodide, into suitable clouds. These particles can serve as cloud condensation nuclei (CCN) and indirectly affect the rate of rainfall. In 2018, cloud seeding operations were responsible for approximately 10-15% of the UAE's total …
An Analysis Of The Air Force Installation Development Plan And Its Energy Benchmarking Effectiveness, Jacob P. Hyman
An Analysis Of The Air Force Installation Development Plan And Its Energy Benchmarking Effectiveness, Jacob P. Hyman
Theses and Dissertations
Installation Development Plan (IDP) is a comprehensive long-term base planning document, which includes an inventory of sustainable development goals including energy use and climate indicators. This study analyzed 32 different IDPs among the various installations in the continental United States, identifying regional trends and behaviors across their 16 Sustainability Development Indicators (SDI). To study the IDPs more in depth, specific focus was placed on SDI 1, which concerns energy consumption and generation. This study investigated the different variations in energy benchmarking across local climate conditions, SDI ratings, and units used. Major inconsistencies were found across these three domains. Subsequently, the …
Groundwater Model Studying Effects Of Existing Recharge Basin And Proposed Subsurface Barrier For A Ranch In Santa Rosa Creek Watershed, Stefan J. Young
Groundwater Model Studying Effects Of Existing Recharge Basin And Proposed Subsurface Barrier For A Ranch In Santa Rosa Creek Watershed, Stefan J. Young
Master's Theses
A groundwater model of a 126.2-acre ranch in Cambria, California was expanded upon to analyze the effects of artificial recharge and a subsurface barrier. The ranch lies within the 48mi2 Santa Rosa Creek Watershed along the Central Coast of California. The mainly agricultural watershed outfalls to the Pacific Ocean to its west. Creek Lands Conservation, a non-profit that aims to conserve and restore habitat along the Central Coast, plans to identify projects to restore stream flow during dry seasons in the creek that runs through the Santa Rosa Creek Watershed and to increase artificial groundwater recharge. This study focuses …
Modeling The Groundwater Basin In The Northern Cities Management Area, Allyson Swain
Modeling The Groundwater Basin In The Northern Cities Management Area, Allyson Swain
Master's Theses
A model was developed to simulate the groundwater of 8,300 acres of the Northern Cities Management Area (NCMA), which encompasses the northern portion of the Arroyo Grande Watershed and a small subset of the Santa Maria Valley Groundwater Basin. This watershed and groundwater basin is located on the coast and contains Oceano and the Cities of Arroyo Grande, Grover Beach, Pismo Beach. Groundwater in the NCMA is used heavily for agricultural irrigation in the southern portion and municipal applications in the northern portion. Up to 18 of these municipal wells and over 50 irrigation wells are drawing groundwater at any …
Cal Poly Preschool Learning Lab Music Garden Design, Karl Heuchert
Cal Poly Preschool Learning Lab Music Garden Design, Karl Heuchert
Construction Management
Colleges, universities and other educational institutions are always looking to improve their learning environments in order to provide students with the best resources, so that they can get the best education. This idea of improving learning environments not only applies to higher education but should be applied to primary education, especially for younger children. Young children should have a learning environment that they can actively engage with that can help them become more creative. This project aims to create a new environment for preschoolers that can allow them to interact with to test their cognitive skills and to give the …
San Luis Obispo Botanical Garden Amphitheater Bench Project – Concrete Formwork Construction, Kyler N. Cruz
San Luis Obispo Botanical Garden Amphitheater Bench Project – Concrete Formwork Construction, Kyler N. Cruz
Construction Management
This paper summarizes the efforts towards constructing formwork for 10 concrete benches. The formwork construction is a part of the San Luis Obispo Botanical Garden amphitheater seating senior project. The project included the design, construction, and installation of precast concrete benches to create seating for 40 people. The project was completed by Kyler Cruz, Brandon Keefer, Sydnee Greer, Makenna Gitchell, Devin Barthmaier, and Anthony Masarweh. The concrete formwork consisted of plywood, 2x4 lumber for bracing, rebar cages, and foam inserts. The key considerations for this scope of work included: reinforcing rebar, the number of forms built, formwork failure, and the …
Journeyman International: Haiti Hac Innovation Center In Croix Des Bouquets, Brent K. Underwood
Journeyman International: Haiti Hac Innovation Center In Croix Des Bouquets, Brent K. Underwood
Construction Management
The purpose of this project was to create and provide the necessary pre-construction documents for a multi-purpose building in Croix des Bouquets, Haiti. This project aims to give occupants a new space to work freely in as it will be equipped with the essential needs. The rooms to be included within this building are offices, meeting rooms, general spaces, a workshop and computer lab – all of which will give the occupants the ability to work in an innovative environment. The project is overseen by three organizations. These groups are Journeyman International (JI), the Haitian American Caucus (HAC), and Third …
Learn By Giving: Non-Profit Information For Future Senior Projects, Ryan H. Proctor
Learn By Giving: Non-Profit Information For Future Senior Projects, Ryan H. Proctor
Construction Management
This report details the processes, deliverables, and partnerships between various non-profit construction organizations to provide students with accessible information about non-profit construction companies for future senior projects. The information and deliverables of this senior project also to be found in the portal for the construction management preliminary senior project class (CM 460). One of the main goals of this senior project is to encourage students to sharpen construction skills while helping communities in need. This project consists of interviewing local, national, and international non-profit companies to compile information so students understand the different opportunities they have. The first deliverable that …
Integrated Mixing Machine For Sulfur Concrete Production, Maisa El Gamal, Khaled El-Sawy, Abdel-Mohsen O. Mohamed
Integrated Mixing Machine For Sulfur Concrete Production, Maisa El Gamal, Khaled El-Sawy, Abdel-Mohsen O. Mohamed
All Works
The production of sulfur concrete (SC) from its ingredient materials requires controlled heating and mixing conditions at a temperature level of 130°-150 °C. Although this process considered to be common and applicable at the industrial level, it is difficult at the laboratory/research level. This paper presents the design and manufacturing details of a relatively inexpensive laboratory machine for heating and mixing sulfur concrete. The different components of the machine are described in detail to help researchers to produce high-quality sulfur concrete. In this work, the quality of the machine is verified through experimental testing of the physical and mechanical properties …
Robotic Parking Technology For Congestion Mitigation And Air Quality Control Around Park & Rides, Mahdi Yoozbashizadeh, Forouzan Golshani
Robotic Parking Technology For Congestion Mitigation And Air Quality Control Around Park & Rides, Mahdi Yoozbashizadeh, Forouzan Golshani
Mineta Transportation Institute
A lack or limited availability for parking may have multiple consequences, not the least of which is driver frustration, congestion, and air pollution. However, there is a greater problem that is not widely recognized by the public, namely the negative effect on the use of transit systems due to insufficient parking spaces close to key transit stations. Automated parking management systems, which have been successfully deployed in several European and Japanese cities, can manage parking needs at transit stations more effectively than other alternatives. Numerous studies have confirmed that quick and convenient automobile access to park-and-ride lots can be essential …
Enhancement Of Asphalt Performance By Graphene-Based Bitumen Nanocomposites, Sara Moghtadernejad, Ehsan Barjasteh, Ren Nagata, Haia Malabeh
Enhancement Of Asphalt Performance By Graphene-Based Bitumen Nanocomposites, Sara Moghtadernejad, Ehsan Barjasteh, Ren Nagata, Haia Malabeh
Mineta Transportation Institute
As the State of California continues to grow, demand for enhanced infrastructure such as roadways and highways escalates. In view of the current average highway lifespan of 15–20 years, the improvement of asphalt binders leads to material sustainability by decreasing required maintenance and increasing the lifespan of roadways. In the present investigation, enhancement of asphalt binder properties was achieved by different methods of mixing varying compositions of graphene nanoparticles with an SBS polymer and asphalt binder. Additionally, experimental evaluation and comparison of the rheological and mechanical properties of each specimen is presented. Graphene nanoparticles have attracted great curiosity in the …
Data Mining Of Unstructured Textual Information In Transportation Safety Domain: Exploring Methods, Opportunities And Limitations, Keneth Morgan Kwayu
Data Mining Of Unstructured Textual Information In Transportation Safety Domain: Exploring Methods, Opportunities And Limitations, Keneth Morgan Kwayu
Dissertations
The unprecedented increase in volume and influx of structured and unstructured data has overwhelmed conventional data management system capabilities in organizing, analyzing, and procuring useful information in a timely fashion. Structured data sources have a pre-defined pattern that makes data preprocessing and information retrieval tasks relatively easy for the current technologies that have been designed to handle structured and repeatable data. Unlike structured data, unstructured data usually exists in an unorganized format that offers no or little insight unless indexed and stored in an organized fashion. The inherent format of unstructured data exacerbates difficulties in data preprocessing and information extraction. …
Evaluating Hazus-Mh Flood Model Consequence Assessments Of Urban And Rural Coastal Landscapes Using Adcirc Generated Flood Data From Hurricanes Isaac And Laura, Katherine Faye Jones
Evaluating Hazus-Mh Flood Model Consequence Assessments Of Urban And Rural Coastal Landscapes Using Adcirc Generated Flood Data From Hurricanes Isaac And Laura, Katherine Faye Jones
LSU Master's Theses
Emergency managers rely on a variety on models and outputs, such as Hazards United States Multi- Hazard (Hazus-MH) and the Coastal Emergency Risk Assessment (CERA) visualization tool, to make decisions in the days leading up to and following hurricane events. This study focuses on using Hurricane Isaac (2012) and Hurricane Laura (2020).ASGS-CERA geoTIFFs, created from generated ADCIRC Prediction System data, in the Hazus-MH Flood Model to test using these two tools together in urban and rural areas. These ASGS-CERA integrated Hazus-MH studies were compared with Hazus-MH studies using the standard Hazus-MH surge methodology. They were tested for accuracy in both …
Safe Yield Comparisons For The 1960’S And 2000’S Drought In The Passaic River Basin, Stephanie R. Santos
Safe Yield Comparisons For The 1960’S And 2000’S Drought In The Passaic River Basin, Stephanie R. Santos
Dissertations
The Passaic River Basin is a complex system of rivers, tributaries, reservoirs, and some of the largest water purveyors in the State of New Jersey. Located in the northeastern part of the State, it drains approximately 800 square miles of water that is used for distribution to the five major purveyors: North Jersey District Water Supply Commission, Passaic Valley Water Commission, Jersey City, Newark, and New Jersey American Water. These purveyors operate under a safe yield, which is defined by the New Jersey Department of Environmental Protection (NJDEP) as the amount of water that should be continuously available should the …
Optimizing Work Zone Schedules Considering Traffic Diversion With Artificial Bee Colony Algorithm, Celina Semaan
Optimizing Work Zone Schedules Considering Traffic Diversion With Artificial Bee Colony Algorithm, Celina Semaan
Dissertations
Highway maintenance activities often decrease roadway capacity and intrude traffic movements. The need to finish the project on time and under a specific budget while minimizing the traffic congestion and complying with the emission standards requires an appropriate work zone schedule optimization. The objective of this research is to improve the efficiency of work zone activities and minimize the total project cost including maintenance, user, and emission cost.
While previous studies investigated the work zone optimization problem, they did not consider the implementation of emission standards nor applied a green diversion strategy. This dissertation analyzes the optimization of work zone …
Design And Detailing Of Cast-In-Place And Precast Concrete Approach Slabs, George Morcous, Mostafa Abo-Elkhier
Design And Detailing Of Cast-In-Place And Precast Concrete Approach Slabs, George Morcous, Mostafa Abo-Elkhier
Nebraska Department of Transportation: Research Reports
Approach slab is a structural concrete slab that spans from the backwall of the abutment (i.e. end of the bridge floor) to the beginning of the paving section. The purpose of the approach slab is to carry the traffic loads over the backfill behind the abutments to avoid differential settlement that causes bumps at the bridge ends. Cast- in-place concrete approach slab is the current practice in US with various spans, reinforcement, thicknesses, joints, and concrete covers. NDOT has observed premature cracking in a significant number of approach slabs, which could result in a shorter service life and costly repairs/replacements …
Design And Detailing Of Cast-In-Place And Precast Concrete Approach Slabs, George Morcous Ph.D., Mostafa Abo-Elkhier
Design And Detailing Of Cast-In-Place And Precast Concrete Approach Slabs, George Morcous Ph.D., Mostafa Abo-Elkhier
Nebraska Department of Transportation: Research Reports
Approach slab is a structural concrete slab that spans from the backwall of the abutment (i.e. end of the bridge floor) to the beginning of the paving section. The purpose of the approach slab is to carry the traffic loads over the backfill behind the abutments to avoid differential settlement that causes bumps at the bridge ends. Cast-in-place concrete approach slab is the current practice in US with various spans, reinforcement, thicknesses, joints, and concrete covers. NDOT has observed premature cracking in a significant number of approach slabs, which could result in a shorter service life and costly repairs/replacements as …
Low Impact Development Mitigation For Base Flood Elevation Disparity Between Adjacent Properties, Shaelynn Moore
Low Impact Development Mitigation For Base Flood Elevation Disparity Between Adjacent Properties, Shaelynn Moore
LSU New Orleans Theses and Dissertations
Disputes between adjacent property owners in which new development at higher elevation requirements has caused adverse effects in stormwater drainage towards lower, older developments has recently grown in concern. The difference of elevations between properties causes a faster sheet flow effect that bypasses existing drainage paths in the servitude. The goal of this research is to design a low impact development methodology that encourages detention and redirection back toward the shared drainage boundary. Detention is encouraged through subsurface infiltration, storage and re-direction of the flow path. Infiltration trench simulations using EPA’s SWMM software were used to mirror the new LID …