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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Deep Reinforcement Learning Approach For Lagrangian Control: Improving Freeway Bottleneck Throughput Via Variable Speed Limit, Reza Vatani Nezafat
Deep Reinforcement Learning Approach For Lagrangian Control: Improving Freeway Bottleneck Throughput Via Variable Speed Limit, Reza Vatani Nezafat
Civil & Environmental Engineering Theses & Dissertations
Connected vehicles (CVs) will enable new applications to improve traffic flow. The focus of this dissertation is to investigate how reinforcement learning (RL) control for the variable speed limit (VSL) through CVs can be generalized to improve traffic flow at different freeway bottlenecks. Three different bottlenecks are investigated: A sag curve, where the gradient changes from negative to positive values causes a reduction in the roadway capacity and congestion; a lane reduction, where three lanes merge to two lanes and cause congestion, and finally, an on-ramp, where increase in demand on a multilane freeway causes capacity drop. An RL algorithm …
The Resilient City: A Platform For Informed Decision-Making Process, Jarutpong Vasuthanasub
The Resilient City: A Platform For Informed Decision-Making Process, Jarutpong Vasuthanasub
Engineering Management & Systems Engineering Theses & Dissertations
As over half of the world’s population lives in cities, the rapid growth in urbanization has made cities become more and more exposed and vulnerable to a broad spectrum of threats and hazards. In order to respond to such difficulties, a concept of resilience is considered a significant component for the long-term planning and sustainable development of cities. “Resilient City” is a new paradigm that challenges the idealistic principle of stability and resistance to change implicitly in sustainable development and long-term success. However, building a resilient city requires a holistic approach, as well as the appropriate adoption of knowledge and …
Developing Algorithms To Detect Incidents On Freeways From Loop Detector And Vehicle Re-Identification Data, Biraj Adhikari
Developing Algorithms To Detect Incidents On Freeways From Loop Detector And Vehicle Re-Identification Data, Biraj Adhikari
Civil & Environmental Engineering Theses & Dissertations
A new approach for testing incident detection algorithms has been developed and is presented in this thesis. Two new algorithms were developed and tested taking California #7, which is the most widely used algorithm to date, and SVM (Support Vector Machine), which is considered one of the best performing classifiers, as the baseline for comparisons. Algorithm #B in this study uses data from Vehicle Re-Identification whereas the other three algorithms (California #7, SVM and Algorithm #A) use data from a double loop detector for detection of an incident. A microscopic traffic simulator is used for modeling three types of incident …
Impact Of Bioinspired Robots On Veterans Pursuing Stem Degrees, Otilia Popescu, Vukica M. Jovanovic, Krishnanand Kaipa, Karina Arcaute, Anthony W. Dean
Impact Of Bioinspired Robots On Veterans Pursuing Stem Degrees, Otilia Popescu, Vukica M. Jovanovic, Krishnanand Kaipa, Karina Arcaute, Anthony W. Dean
Engineering Technology Faculty Publications
The gap in the area of advanced manufacturing skilled workforce and the efforts in guiding veterans towards STEM careers are merged in the NSF funded project presented in this paper. While most of the products and STEM educational programs focused on a maker concept that are currently available are specifically designed for young population, at various K-12 grade levels, to increase their interest in STEM and engineering careers in particular, there is a limited availability of such programs to address adult population. The study presented in this paper focuses on developing and implementing a series of workshops for veterans, using …
Latent Choice Models To Account For Misclassification Errors In Discrete Transportation Data, Lacramioara Elena Balan
Latent Choice Models To Account For Misclassification Errors In Discrete Transportation Data, Lacramioara Elena Balan
Civil & Environmental Engineering Theses & Dissertations
One of the most fundamental tasks when it comes to analyzing data using statistical methods is to understand the relationship between the explanatory variables and the outcome. Misclassification of explanatory variables is a common risk when using statistical modeling techniques. In this dissertation, we define ‘misclassification,’ as a response that is reported or recorded in the wrong category; for example, a variable is registered as a one when it should have the value zero. Misclassification can easily happen in any data; for example, in an interview setting where the respondent misunderstands the question or the interviewer checks the wrong box. …
The Resilient City: A Platform For Informed Decision-Making Process, Paul Niculescu-Mizil Gheorghe, Jarutpong Vasuthanasub, Adrian Gheorghe
The Resilient City: A Platform For Informed Decision-Making Process, Paul Niculescu-Mizil Gheorghe, Jarutpong Vasuthanasub, Adrian Gheorghe
Engineering Management & Systems Engineering Faculty Publications
As over half of the world’s inhabitants lives in metropolises, the rapid growth in urbanization has made cities becoming more and more exposed and vulnerable to a broad spectrum of threats and hazards. In order to respond to such difficulties, a concept of resilience is considered a significant component for the long-term planning and sustainable development of the cities. “Resilient City” is a new paradigm that challenges the idealistic principle of stability and resistance to change implicitly in sustainable development and success. However, building a resilient city requires a holistic approach, as well as the appropriate adoption of knowledge and …
Leveraging Contracting Strategies With Private Shipyards For Increasing Naval Fleet Operational Availability, Kaitlynn M. Castelle, Joseph M. Bradley, Sanjeev Gupta
Leveraging Contracting Strategies With Private Shipyards For Increasing Naval Fleet Operational Availability, Kaitlynn M. Castelle, Joseph M. Bradley, Sanjeev Gupta
Engineering Management & Systems Engineering Faculty Publications
A major rethink of NAVSEA’s shipyard contracting strategy is required to support the critical need of improving our naval fleet availability. Operational Fleet material availability is reduced when various parts of the “NAVSEA production system” operate at cross-purposes. By increasing alignment between major players (i.e., NAVSEA and the private shipyards), major improvements in delivery performance, cost, and even throughput can be realized. Developing strategies and specific actions to do so is a rich field given the current state of the system. We take an analytical as well as evidence-based approach to propose strategies that can be successful given the peculiar …
Board 78: Establishing A Pathway To Completion For Pursuing Engineering And Engineering Technology Degrees Through A Scholarship Program At Old Dominion University, Vukica M. Jovanovic, Anthony W. Dean, Kim Bullington Sibson, Cynthia Tomovic, Rafael Landaeta
Board 78: Establishing A Pathway To Completion For Pursuing Engineering And Engineering Technology Degrees Through A Scholarship Program At Old Dominion University, Vukica M. Jovanovic, Anthony W. Dean, Kim Bullington Sibson, Cynthia Tomovic, Rafael Landaeta
Engineering Technology Faculty Publications
There are various barriers facing adult students and veterans completing engineering degrees. Many of these student’s work part- or full-time while in college. In order to help these students, enable high retention rates, and decrease time to graduation require an in-depth understanding of specific student populations, especially ones classified as underrepresented. This paper provides an initial look into the first year of a scholarship program, funded by the National Science Foundation, and student success activities designed to support high-achieving, low-income students with demonstrated financial need pursuing bachelor's degrees in engineering and engineering technology. Support services and scholarships are for veterans …