Quantum Artificial Intelligence Supported Autonomous Truck Platooning,
2023
Clemson University
Quantum Artificial Intelligence Supported Autonomous Truck Platooning, Pronab Kumar Biswas
All Theses
Truck platooning can potentially increase the operational efficiency of freight movement on U.S. corridors, improving commercial productivity and economic vibrancy. Predicting each leader vehicle trajectory in the autonomous truck platoon using Artificial Intelligence (AI) can enhance platoon efficiency and safety. Reliance on classical AI may not be efficient for this purpose as it will increase the computational burden for each truck in the platoon. However, Quantum Artificial Intelligence (AI) can be used in this scenario to enhance learning efficiency, learning capacity, and run-time improvements. This study developed and evaluated a Long Short-Term Memory Networks (LSTM) model and a hybrid quantum-classical …
Piezoresistivity Of Electrically Conductive Asphalt Concrete,
2023
The University of Texas Rio Grande Valley
Piezoresistivity Of Electrically Conductive Asphalt Concrete, Mateo Schmit Mendoza
Theses and Dissertations
Electrically conductive asphalt concrete is considered as a multifunctional construction material due to its structural and non-structural functions. This study aims to investigate piezoresistivity of conductive asphalt concrete. Piezoresistivity is an electrical property of some materials which electrical resistivity changes with induced strain and subsequently, it has the potential for self-sensing smart technology. Graphite Powder F-516 with various contents was added into the asphalt mixtures to impart the electrical conductivity. Electrochemical impedance spectroscopy (EIS) was selected to measure the electrical properties of the specimens in dry and wet conditions, and low and high temperatures. The impedance measurement shows that the …
Studying Pedestrian’S Unmarked Midblock Crossing Behavior On A Multilane Road When Interacting With Autonomous Vehicles Using Virtual Reality,
2023
Clemson University
Studying Pedestrian’S Unmarked Midblock Crossing Behavior On A Multilane Road When Interacting With Autonomous Vehicles Using Virtual Reality, Fengjiao Zou
All Dissertations
This dissertation focuses on the challenge of pedestrian interaction with autonomous vehicles (AVs) at unmarked midblock locations where the right-of-way is unspecified. A virtual reality (VR) simulation was developed to replicate an urban unmarked midblock environment where pedestrians cross a four-lane arterial roadway and interact with AVs. One research goal is to investigate the impact of roadway centerline features (undivided, two-way left-turn lane, and median) and AV operational schemes portrayed through on-vehicle signals (no signal, yellow negotiating indication, and yellow/blue negotiating/no-yield indications) on pedestrian crossing behavior. Results demonstrate that both roadway centerline design features and AV operations and signaling show …
Smart Transportation In Small- And Medium-Sized Cities In Central California,
2023
California State University, Fresno
Smart Transportation In Small- And Medium-Sized Cities In Central California, Hongwei Dong
Mineta Transportation Institute
The research on smart transportation in the United States has centered on large metropolitan areas. The adoption of smart transportation technologies in small-and medium-sized cities outside of large metropolitan areas is less studied and understood. This study examined the adoption of smart transportation technologies in small-and medium-sized cities in Central California. The analysis was based on the online survey responses from 29 transportation officials and professionals who worked for 18 municipal government departments and six metropolitan planning organizations (MPOs) in Central California as well as in depth semi-structured interviews with seven of them. The study showed that smart transportation in …
Experimental Investigation Of The Self-Healing Potential Of Bacteria For Sustainable Concrete Structures,
2023
California State University, Long Beach
Experimental Investigation Of The Self-Healing Potential Of Bacteria For Sustainable Concrete Structures, Pitiporn Asvapathanagul, Simone Galano, Andrea Calabrese, Mehran Rahmani, Maggie Ly, Daniela Flores, Michael Hernandez, Nicholas Banuelos
Mineta Transportation Institute
Although concrete is the most widely used building material in the world, its limited tensile strength makes cracking a common phenomenon in concrete elements. This study investigates the potential of autonomous self-healing as an eco-friendly and lowcost method to increase the durability of concrete. The crack-healing potential of different types of high-alkaline-tolerant bacteria or calcite-precipitation microorganisms is investigated. High-alkaline-tolerant bacteria and calcite-precipitation microorganisms were used to retrofit lab-fractured concrete samples. The samples healed with each of these bacteria groups were cast and tested under compressive load up to failure to measure the compressive strength of the concrete samples. The outcomes …
Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects,
2023
San Jose State University
Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects, Nigel Blampied, Tariq Shehab, Elhami Nasr, Laxmi Sindhu Samudrala
Mineta Transportation Institute
Because the construction phase accounts for the majority of project costs for pavement rehabilitation projects, most research on infrastructure project cost estimating focuses on that phase, rather than on the preconstruction phases. Nevertheless, costs incurred prior to construction, referred to in this report as "preconstruction costs" are significant and worthy of consideration (See Section 2.1 of the report for a more detailed and precise definition of preconstruction). In the 20202021 fiscal year, for instance, the California Department of Transportation (Caltrans) spent more than $169 million on preconstruction work for pavement rehabilitation projects. This report presents the results of a study …
Electric Vehicle Routing Problem – Models And Algorithms,
2023
Old Dominion University
Electric Vehicle Routing Problem – Models And Algorithms, Hesamoddin Tahami
Engineering Management & Systems Engineering Theses & Dissertations
The transportation sector is a major greenhouse gas emitter that is heavily regulated to reduce its dependence on oil. These regulations along with the growing customer awareness of global warming have led to the investigation of new transportation problems that consider using eco-friendly vehicle fleets. Promising alternatives to traditional fleets include alternative fuel vehicles (AFVs) and electric vehicles (EVs). These twenty-first-century vehicles offer an appealing advantage of consistently reducing their environmental impact, but due to the current technology, they exhibit bothersome limitations. The short driving range along with limited charging infrastructure may consequently cause issues related to range anxiety, i.e., …
Investigating The Severity And Rate Of Occurrence Of Motorcycle Crashes Across Different Land Uses In Georgia,
2023
Kennesaw State University
Investigating The Severity And Rate Of Occurrence Of Motorcycle Crashes Across Different Land Uses In Georgia, Robert Edwards
Symposium of Student Scholars
In 2020, motorcycle crashes reached their highest number of fatalities nationally since 1975, when 5,579 motorcyclists were killed. Georgia, in recent years, has seen an increase in the number of fatal multi-vehicle crashes involving motorcycles. This would be indicative of the general trend and nothing more if the number of motorcycle crashes reported outside of urban populations did not increase—despite lockdown measures—by 1.7% in 2020. In this investigation, employing a thorough examination of the Georgia Department of Transportation’s Crash Data (GDOT) compiled from the last ten years and the Fatality Analysis Reporting System (FARS) compiled from the last five years, …
Behavior Analysis Of Cement Concrete With Combination Of Waste Rubber And Glass,
2023
Kennesaw State University
Behavior Analysis Of Cement Concrete With Combination Of Waste Rubber And Glass, Abdulaziz Alebra
Symposium of Student Scholars
Glass and Rubber waste materials are valuable materials to use rather than throw which we have more than enough to use and recycle. Recycled glass and rubber materials can reduce and help major climate issues in our times based on the statistics reducing glass can bring down air pollution by 20% and also reduce water pollution by 50% as well as can reduce the use of landfill space. A laboratory study will be launched, and tests will be conducted following the ASTM standards, ASTM C143 for a concrete slump, and ASTM C31 for making and curing concrete specimens. Samples of …
The Effect Of Airflow Guiding Components On Effective Ventilation Rates In Single-Sided Ventilation Applications,
2023
MaREI, The SFI Research Centre for Energy, Climate and Marine, Ireland; School of Mechanical, Electrical, and Process Engineering, Munster Technological University, Bishopstown, Cork, Ireland
The Effect Of Airflow Guiding Components On Effective Ventilation Rates In Single-Sided Ventilation Applications, Nima Najafi Ziarani, Malcolm Cook, Paul D. O’Sullivan
Publications
Wind-driven single-sided ventilation (SSV) is present in many existing buildings across Europe, and with new near-zero energy building (NZEB) regulations for the refurbishment of the existing building stock, its attractiveness as a noninvasive, low-energy solution is set to continue. As a strategy, however, in addition to its air change rate capacity, the distribution of fresh air is an important evaluation criterion for its performance. Airflow guiding components located in the external opening that enhance the effectiveness of the wind-driven flow in ventilating the occupied zone could improve the quality of indoor environments. To our knowledge, the literature is sparse on …
Evaluation Of The Effect Of Mls Density Level Data On Dem,
2023
Department of Civil Engineering, Benha Faculty of Engineering, Benha University, Egypt
Evaluation Of The Effect Of Mls Density Level Data On Dem, Essam Ghanem, Mostafa Rabah, Fekry Ashraf
Mansoura Engineering Journal
Mobile laser scanning (MLS) systems are quickly establishing themselves as the primary source of high-quality digital elevation models (DEM). Data density is the key element that determine the quality of DEMs. Moreover, point density acts a vital role in MLS operation planning and MLS project's cost. This study's goal was to evaluate the impact of point density from MLS on creating DEMs and the accuracy of computed volume in different interpolation methods. The finding demonstrated that the DEM's quality and the volume are more impacted by density level and interpolation method. Interpolation methods are affected by point density. There is …
Feasibility Study For A Continuous Mansfield Hollow State Park Multi-Use Path,
2023
University Of Connecticut
Feasibility Study For A Continuous Mansfield Hollow State Park Multi-Use Path, Owen P. Spangler
Honors Scholar Theses
This report aims to design a pedestrian river crossing that connects the north and south ends of Mansfield Hollow State Park, utilizing both a new paved pathway and bridge construction. This report first uses GIS data to complete a feasibility study on pathway routing and cost. A preliminary route was selected based on grading and cost analysis. The requirements for constructing a multi-use pathway in the State of Connecticut were then explored, attempting to find a best-fit pathway alignment to accomplish that goal. Through a lengthy literature review, it was found that the pathway design would have to deviate from …
Improving Intersection Safety With Geographically-Targeted Crash Prediction Models In Utah,
2023
Utah State University
Improving Intersection Safety With Geographically-Targeted Crash Prediction Models In Utah, Atul Subedi
Student Research Symposium
This project aims to improve intersection safety in Utah by developing geographically-targeted crash prediction models. The lack of research investigating active mode crashes at signalized intersections in different geographical regions calls for this study. The objective of this research is to understand the factors associated with the frequency of active mode crashes at signalized intersections. Exposure variables such as AADT, pedestrian and bicycle volumes, and intersection-level variables such as crossing distance, speed limit, and presence of street lights were analyzed using a negative binomial regression model.
Examining The Impact Of Different Street Lighting Schemes On Traffic Safety And Drivers’ Behaviors At Unsignalized Intersections,
2023
Louisiana State University and Agricultural and Mechanical College
Examining The Impact Of Different Street Lighting Schemes On Traffic Safety And Drivers’ Behaviors At Unsignalized Intersections, Hisham Mohamed Abdu Kunnah
LSU Master's Theses
Lack of visibility is one of the main challenges that significantly impact drivers’ ability to safely perform driving tasks at night especially at unsignalized intersections. Several prior studies indicated that lighting enhances nighttime traffic safety. Nevertheless, lighting is not mandatory at unsignalized intersections in many states including Louisiana. This study aimed to investigate if lack of lighting is a contributing factor that affects traffic safety at unsignalized intersections in Louisiana. In addition, this study strived to identify current lighting policies adopted by other states, examine if there are any low-cost countermeasures implemented by other states to improve nighttime visibility, and …
A Comprehensive Study On Non-Proprietary Ultra-High-Performance Concrete Containing Supplementary Cementitious Materials,
2023
New Mexico State University
A Comprehensive Study On Non-Proprietary Ultra-High-Performance Concrete Containing Supplementary Cementitious Materials, Seyedsaleh Mousavinezhad, Gregory J. Gonzales, William K. Toledo, Judith M. Garcia, Craig M. Newston, Srinivas Allena
Civil and Environmental Engineering Faculty Publications
Ultra-high performance concrete (UHPC) is a novel cement-based material with exceptional mechanical and durability properties. Silica fume, the primary supplementary cementitious material (SCM) in UHPC, is expensive in North America, so it is often substituted with inexpensive class F fly ash. However, future availability of fly ash is uncertain as the energy industry moves toward renewable energy, which creates an urgent need to find cost-effective and environmentally friendly alternatives to fly ash. This study investigated replacing cement, fly ash, and silica fume in UHPC mixtures with ground granulated blast-furnace slag (GGBFS), metakaolin, and a natural pozzolan (pumicite). To identify acceptable …
Paved With Good Intentions? A Geopolitical Analysis Of The Belt And Road Initiative In Central And Eastern Europe,
2023
SIT Study Abroad
Paved With Good Intentions? A Geopolitical Analysis Of The Belt And Road Initiative In Central And Eastern Europe, Vincent Zhang
Independent Study Project (ISP) Collection
The objective of this analysis is to reveal the geopolitical and geoeconomic significance of the Belt and Road Initiative (BRI) to the region of Central and Eastern Europe (CEE). Launched in 2013 as a proposal for increased economic interconnectivity between China and Kazakhstan, the BRI has since grown to encompass hundreds of countries across Asia, Africa, and Europe. The region of CEE is of note as it is coterminous with important regional groupings like the 14 + 1 Cooperative Framework between China & CEE and a point of overlapping interests from actors like the European Union (EU), North Atlantic Treaty …
Incorporating Variability In Kytc Planning And Project Development,
2023
University of Kentucky
Incorporating Variability In Kytc Planning And Project Development, Reginald Souleyrette, Teng Wang, Riana Tanzen, Arnold Stromberg
Kentucky Transportation Center Research Report
Transportation planning and design decisions are typically made using point estimates of traffic and safety measures. This report addresses the uncertainty of data used to make these decisions. It focuses on two data elements — project safety ratings and volume estimates from traffic counts. For safety ratings, the Kentucky Transportation Cabinet’s Strategic Highway Investment Formula for Tomorrow (SHIFT) crash history score is used as a case study. Confidence intervals are developed for the Cabinet’s new safety metric, which incorporates estimates of future crashes by severity as well as excess expected crashes above safety goals. For traffic counts, the report develops …
Incorporating Crash Severity And Continuous Improvement Of Shift,
2023
University of Kentucky
Incorporating Crash Severity And Continuous Improvement Of Shift, Reginald Souleyrette, Riana Tanzen, Teng Wang
Kentucky Transportation Center Research Report
The Strategic Highway Investment Formula for Tomorrow (SHIFT) is the Kentucky Transportation Cabinet's data-informed approach for comparing capital improvement projects and prioritizing limited transportation funds. SHIFT 2022 incorporates advancements in methods and flexibility. This project revises the SHIFT crash data safety metric. The crash data safety metric from the previous version of SHIFT was excess expected crashes (EECs). It is computed using the total number of crashes of all severities. Locations with a higher proportion of severe (fatal and injury) crashes received the same weight as locations with an equal number of property damage only crashes. This project redefines the …
Utilizing The System Engineering Trade Study Analysis Method To Analyze Patient Aeromedical Evacuation,
2023
Air Force Institute of Technology
Utilizing The System Engineering Trade Study Analysis Method To Analyze Patient Aeromedical Evacuation, Sara Shaghaghi, Jeremy M. Slagley, Michael E. Miller, Gaiven Varshney
Faculty Publications
The US Air Force has gone through many aeromedical patient isolation transport system designs. The first designs were developed in response to the Ebola outbreak in 2014 and, more recently, the COVID-19 pandemic. The trade study analysis part of the system engineering design method was used to analyze the historic and current aeromedical patient contamination control transport systems. A trade study is a process that evaluates alternatives based upon various “-ilities”, such as reconfigurability, flexibility, durability, cost, and more, and performs a systematic analysis to aid designers in producing a ‘good’ design alternative given the large set of possible solutions. …
Investigating The Detriment Of Development Assistance: A Geopolitical Analysis Of Sino-Djibouti Relations Through The Lens Of China’S Belt And Road Initiative,
2023
SIT Study Abroad
Investigating The Detriment Of Development Assistance: A Geopolitical Analysis Of Sino-Djibouti Relations Through The Lens Of China’S Belt And Road Initiative, Elizabeth Elenwo-Roger
Independent Study Project (ISP) Collection
This research paper will evaluate Africa’s past with debt accumulation, focusing on the role of the Washington Consensus spearheaded by the Bretton Woods Institutions in its failed attempts to relieve the continent’s debt distresses and further aggravate Africa’s already fractured relationship with the West. It will highlight the goals of the Belt and Road Initiative, assessing China’s South-South cooperation approach to its relations with Djibouti and the Horn of Africa. Specifically, it will investigate claims of China engaging in debt-trap diplomacy and the extent to which this term infringes upon the agency of African leaders. The general research question investigates …
