Urban Studies and Planning Commons^™

Pathways To Efficient And Equitable Solutions For Large-Scale Routing Problems, Abhay Sobhanan

USF Tampa Graduate Theses and Dissertations

This dissertation addresses large-scale optimization problems in transportation emerging from hierarchical decision-making, equitable workload allocation, and innovative routing logistics. It presents three sets of contributions, each detailed in a separate chapter, and offers computational tools and insights to advance both the theory and practice of transportation systems.

The first work introduces a deep learning-enhanced genetic algorithm framework for solving the Hierarchical Vehicle Routing Problems (HVRPs). Traditional optimization approaches to such problems require extensive evaluation of multiple lower-level routing solutions and are computationally intensive. Our innovative method integrates a genetic algorithm with a pretrained graph neural network, which is trained on …

The Asset Management Optimization Engine: An Ai And Machine Learning Model Approach To Pavement Asset Management, Matt Versdahl

USF Tampa Graduate Theses and Dissertations

While state Departments of Transportation (DOT) face major funding challenges, the need to find optimal ways to preserve and maintain pavement assets remains. Asset management employs a lowest cost lifecycle method to analyze asset costs and determine the best investment strategies to preserve it throughout its lifecycle. As new technology emerges, so do opportunities to leverage it. DOTs collect a significant amount of performance data on pavement and use it to decide how to keep it in a state of good repair. The literature in this area focuses on engineering techniques applied to treatment strategies. This dissertation research focuses on …

Auction-Based Tolling Systems: Addressing Behavioral Economics And Social Equity Concerns, Tung Huy Vo

USF Tampa Graduate Theses and Dissertations

The value of time (VOT), or willingness to pay (WTP) to reduce travel time in the context of transportation, is not homogeneous across all road users. Everyone has their own unique VOT and may have multiple values for the VOT associated with factors such as the time of day or the trip purpose. However, the traditional distance-based, time-based, or demand-based congestion pricing methods cannot reflect the true WTP for the use of tolled facilities of the road users. Recent studies have explored and proposed an innovative congestion pricing scheme that integrates auction mechanisms into tolling systems, known as auction-based tolling …

Navigating Change: Youth Civic Engagement At Tampa Heights Junior Civic Association, Alex R. Whitacre

USF Tampa Graduate Theses and Dissertations

This study examines the impact of gentrification on the Tampa Heights community in Florida, focusing on the role of Tampa Heights Junior Civic Association (THJCA) in fostering civic engagement and youth empowerment amidst urban transformation. Using a mixed-methods ethnographic approach, including participant observation, archival review, spatial analysis, surveys, and interviews, the research investigates how THJCA affiliates conceptualize and respond to gentrification, space, and community change. Employing urban place theories and social capital frameworks, the research challenges deficit-oriented narratives in examining the experiences of current and former residents, the effects of gentrification on youth educational services, and THJCA's strategies for maintaining …

Analysis Of The Impact Of Pavement Characteristics On Road Traffic Safety And Pavement Management Using Statistical Heterogeneity Models, Huiqing Lyu

USF Tampa Graduate Theses and Dissertations

Pavement shall accommodate current and predicted traffic needs in a safe, durable, and cost-effective manner. Among pavement surface characteristics, pavement friction is a critical factor contributing to roadway safety, as it directly impacts a driver's ability to execute steering, braking, and acceleration maneuvers safely. Ensuring an adequate level of pavement friction is essential to minimize the skidding risk for all road users. Continuous pavement friction measurement (CPFM) has recently become a proven approach, revolutionizing safety-related pavement management and skidding crash injury prevention. Meanwhile, pavement roughness has long been linked to vehicle fuel efficiency and pavement structural degradation. Perceptions of pavement …

Understanding And Alleviating The Impact Of Convective Weather To Airfield Efficiency, Huang Feng

USF Tampa Graduate Theses and Dissertations

Extensive research in predicting annual passenger throughput at airports has been conducted, aiming at providing decision support for airport construction, aircraft procurement, resource management, flight scheduling, etc. However, few studies have been conducted on how airport operational throughput is affected by convective weather in the vicinity of the airport and how to predict short-term airport operational throughput. Convective weather near the airport could make arrivals miss their positions in the arrival stream and reduce airfield efficiency in terms of utilizing runway capacities. This research leverages the learning-based method (MB-ResNet model) to predict airport hourly throughput. It uses the Hartsfield–Jackson Atlanta …

Evaluating The Effectiveness Of Edge Line Sinusoidal Rumble Strips On Lane Departure Crash Prevention And Injury Severity, Shubhankar Chintamani Shindgikar

USF Tampa Graduate Theses and Dissertations

Lane departure crashes are one of the most prevalent accidents in Florida and the United States. Various forms of rumble strips have been employed to mitigate and decrease these incidents. The Florida Department of Transportation (FDOT) recently adopted a new sinusoidal rumble strip pattern for statewide implementation of audible and vibratory treatment (AVT). Recent research indicates sinusoidal rumble strips are highly effective in alerting drivers audibly and through tactile vibrations, thus aiding lane departure prevention. Moreover, they generate less external noise compared to other rumble strip textures.

However, a systematic assessment of the safety effectiveness of sinusoidal rumble strips in …

Resolving Nigeria’S Security Conundrum: A Comprehensive Regional Analysis, Lukman Ahmed Lawal, Beacon Mbiba, Salamatu Kassah

Journal of African Conflicts and Peace Studies

Abstract

This article analyses the regional variabilities of insecurity in Nigeria to propose a suitable approach to understanding their peculiarities. It argues that the dominant military interventions and one-size-fits-all approaches are inappropriate for resolving the country’s myriad security challenges. The Regional Security Complex Theory offers a theoretical basis to contextualise the complex security challenge in Nigeria. There is a need to unbundle the dynamics for each of the regions. Syntheses from the six geopolitical zones indicate that although the security challenges manifest in precarious living conditions, the drivers differ. The article recommends that interventions analyse and identify underlying factors for …

Investigation Of The Use Of Recycled Concrete Aggregates In Porous Asphalt Mixture, Asad Elmagarhe

USF Tampa Graduate Theses and Dissertations

This study aims to address the national need for using recycled concrete in road pavements. This is especially important in the governmental and corporate sectors, where reducing the cost and carbon footprint of construction projects is a priority. The long-term goal is to meet the public demand for environmentally friendly infrastructure and minimize the harmful effects of waste disposal on humans and the environment.

The project focuses on using recycled concrete aggregate (RCA) in porous asphalt pavement to reduce stormwater runoff, a popular environmentally friendly road design. However, compared to regular dense asphalt mixtures, porous asphalt mixtures (PAM) are more …

Navigating Shrinking Cities: Towards Coordinated Urban Development From The Perspective Of Flow And Network, Yuzhou Chen

USF Tampa Graduate Theses and Dissertations

As cities worldwide undergo rapid but uneven changes, proposing smart and sustainable urban development strategies has been a popular interdisciplinary research in the 21st century. In particular, the phenomenon of shrinking cities characterized by economic recession and population decline is becoming increasingly severe in developed countries and even developing countries. In the real world, research focusing on individual shrinking cities often neglects the interconnectedness between cities within the network formed by flows. Therefore, coordinating the development strategies for multiple closely connected cities, especially for shrinking cities, is a step up from focusing on individual cities.

This dissertation aims to propose …

Revealing Long Vehicle Dynamics: A Comprehensive Journey From Visualization Tools For Heavy Vehicles To Conversion Factors And Public Transit Performance Analysis, Eren Yuksel

USF Tampa Graduate Theses and Dissertations

Over the past few decades, there has been an increasing fascination with Intelligent Transportation Systems (ITS) and Connected and Autonomous Vehicle (CAV) technology, particularly in the realm of data collection and traffic management. Thanks to the possibilities unlocked by ITS and CAV technology, traffic data collection now serves a diverse array of safety and mobility applications, delivering real-time or near-real-time information for both road users and transportation professionals.

The integration of ITS and CAV technology is crucial for the creation of safer, more reliable, and sustainable transportation environments. As traffic-related data collection, analysis, and visualization form essential components of this …

Density In The Coastal High Hazard Area: How Florida Local Governments Regulate New Residential Development In Flood Zones, Abdul Samad Agha

USF Tampa Graduate Theses and Dissertations

This research examines Florida local government policies that address residential development in the places where people, property, and infrastructure are most at risk from both coastal as well as inland storm surges with a purpose of identifying policy norms and variations. In Florida, these at-risk areas are categorized as Coastal High Hazard Areas (CHHA). Under Florida Statutes, the CHHA is defined as the area below the elevation of a Category 1 storm surge line and are those places most likely to be significantly damaged or submerged by sea water. Florida requires that local governments designate CHHA areas within the local …

Single And Not Ready To Mingle: The Potential Gentrification Of Student Housing, Anna L. Peters, Lou L. Sabina, Maureen M. Mcclure, Kiara L. Sabina, Claudine Mclaren-Turner, Marcus Silver

Journal of Global Education and Research

As higher education tuition continues to rise in the United States and globally, other costs impacting students, such as fees, parking, and housing, are rising at a similar pace. Concurrently, more higher education institutions are focusing on creating boutique experiences for students, including the option for single-unit housing. This paper analyzed the costs associated with single-unit housing at the ten largest college campuses in the United States compared to the costs associated with multi-unit housing and off-campus living. The changes in preferences for students associated with their college experiences, when partnered with higher costs of living and off-campus housing, create …

Evaluating The Responsiveness Of Urban Security In The University Area, Varshini Renikunta

USF Tampa Graduate Theses and Dissertations

Perceptions of safety within one's neighborhood can significantly impact overall health. While certain neighborhood features like broken sidewalks, crime rates, and visible disorder can influence these perceptions, the exact interplay of these factors remains unclear, especially among individuals with disabilities who might perceive themselves at greater risk. Individuals typically opt for routes and spaces they deem safe in the built environment, such as well-lit pathways, areas next to lively storefronts instead of closed facades, or routes that steer clear of potentially unsafe building entrances. How individuals navigate and interact with their surroundings is intrinsically tied to their cognitive perceptions shaped …

Validating The Correlation Between Illuminance, Nighttime Crash Frequency And Demographic Characteristics On Roadway Segments In District 7, Florida, Aditi Sugeerappa Hoti

USF Tampa Graduate Theses and Dissertations

For a long time, streetlights have proved to be an effective tool to help users access roads safely. Hindrance to good visibility at nighttime has been attributed to accidents on the road. Florida is considered to have very dangerous roads due to careless driving which increases as nighttime approaches. Much empirical research has contributed to the attention nighttime crashes receive. This study examines the influence of roadway characteristics along with socio-economic factors on crashes through statistical and spatial analysis of roadway segments in Tampa Bay Region. Illuminance data, crash data and socio-economic data for roadways facing nighttime crashes under low-illuminance …

The Great Resignation: An Exploration Of Strategies To Combat School Bus Driver Shortages In The Post-Covid-19 Era, James E. Cole Jr.

USF Tampa Graduate Theses and Dissertations

Leading school transportation providers have been turning toward data-driven incentive programs to engage, motivate, and get the best out of their school bus drivers, but the nationwide school bus driver shortage has emerged as a pressing issue of critical importance affecting the education system, transportation infrastructure, and safety of students across the United States. School bus driving is one of the most challenging driving jobs, and low wages, demanding schedules, stringent licensing requirements, and the COVID-19 pandemic have exacerbated the shortage of drivers. Identification of strategies to improve school bus driver retention was the objective of this qualitative phenomenological study. …

Refining The Machine Learning Pipeline For Us-Based Public Transit Systems, Jennifer Adorno

USF Tampa Graduate Theses and Dissertations

According to the Population Division of the United Nations, in the United States, almost 90% of the population will live in urban areas by the year 2050. As the population in a given area increases, higher traffic congestion follows due to an increase of vehicles in the road. A possible way to alleviate congestion could be with widespread use of public transit. However, according to the US Census Bureau, the percentage of individuals commuting through public transportation has been decreasing steadily over time, and the American Community Survey reports that during 2019, only around five percent of the US population …

Exploration Of Shared Passenger Urban Air Mobility – Integrated Network Design, Operation Scheduling And System Configuration, Zhiqiang Wu

USF Tampa Graduate Theses and Dissertations

Urban air mobility (UAM) is an emerging concept proposed in recent years that uses electric vertical take-off and landing vehicles (eVTOLs). UAM is expected to offer an alternative way of transporting passengers and goods in urban areas with significantly improved mobility by making use of low-altitude airspace. Considering the high capital investment of eVTOLs and relative high fee of using UAM passenger service, a viable UAM format is shared passenger service. Such a service is usually station-based, i.e., with vertiport located in popular sites where potential passengers can access. To understand the viability of such use cases, the vertiport owners …

V2v And V2i Based Safety And Platooning Algorithms For Connected And Autonomous Vehicles, Omkar Dokur

USF Tampa Graduate Theses and Dissertations

Connected Vehicles (CVs) make transportation safe by communicating with vehicles and the infrastructure in their neighborhood. CVs are embedded with onboard units (OBUs) which transmit basic safety messages (BSMs) containing the location, heading, and velocity information of the vehicle using either Dedicated Short-Range Communications (DSRC) or Cellular Vehicle-to-Everything (C-V2X) technology. These BSMs can be used to warn drivers using various vehicle-to-vehicle (V2V) or vehicle-to-infrastructure (V2I) applications. Along with these applications, CV technology also gives rise to cooperative vehicular driving applications such as platooning. A group of vehicles can negotiate and drive jointly close to each other in a cooperative manner …

Who Goes And Who Stays: Predicting Hurricane Evacuation For Local Neighborhoods, Shakhawat Hosen Tanim

USF Tampa Graduate Theses and Dissertations

To reduce the devastating impacts of hurricanes on people’s lives, communities, and societal infrastructures, disaster management would benefit considerably from a detailed understanding of evacuation, including the socio-demographics of the populations that evacuate, or stay, down to disaggregated geographic levels such as neighborhoods. A detailed household evacuation prediction model for local neighborhoods requires both a robust household evacuation decision model and individual household data for small geographic units. To address the first of these, this dissertation performed a statistical meta-analysis of numerous survey-based hurricane evacuation studies to establish mean effect sizes for predictors impacting the household decision. To address the …

Data Driven Approaches For Understanding And Improving Urban Mobility, Yujie Guo

USF Tampa Graduate Theses and Dissertations

With the adoption of advanced information technologies, the transportation system keep innovating. It now offers more travel options, becomes smarter, but meanwhile gets more complicated and imposes more challenges to researchers and practitioners. For example, demand responsive public transit operates according to user demand instead of traditional timetable-based and fixed route services, which brings a lot of convenience to users. These emerging services also reshapes the way people travel. With the popularity of ride sharing services such as Uber and Lyft, people are more accessible to vehicle use without an ownership. Given the increasing popularity of emerging services, it is …

Airspace Design And Strategic Deconfliction For Urban Air Mobility, Hualong Tang

USF Tampa Graduate Theses and Dissertations

Urban Air Mobility (UAM), a part of Advanced Air Mobility (AAM), focused on transporting passengers in low-altitude urban airspace, has attracted extensive attention among industry, government, academia, and the public. Compared to existing commercial flights, to be able to succeed, UAM is envisioned to move to highly automated and high-density operations in low-altitude urban airspace in the future. Providers of services for UAM (PSU), rather than the legacy Air Traffic Control, are anticipated to support operators with operational planning, aircraft deconfliction, conformance monitoring, and emergency information dissemination. Such services, for hundreds to thousands of simultaneous UAM operations in constrained airspace, …

Statistical Models Of Traffic Injury Severities: The Effects Of Driver Nationality And The Time-Of-Day On Pedestrian Injuries, Asim Alogaili

USF Tampa Graduate Theses and Dissertations

Roadway accidents have long been a major cause of casualties among all roadway users including drivers and pedestrians. Researchers have used various advanced methodologies to precisely identify affecting factors to help policy makers implement safety measures that effectively mitigate such losses. For a variety of reasons such factors, especially those related to roadway users, are subject to constant changes over time. This work investigates, in depth, the effect of multiple variables on the injury severity levels of both drivers and pedestrians using the most recent and advanced methodological approaches.

First, the dissertation starts by investigating factors that significantly contribute to …

Identifying Significant Factors Affecting The Likelihood And Severity Level Of Shared E-Scooter Crashes, Recep Can Cakici

USF Tampa Graduate Theses and Dissertations

• Objective: To identify significant factors that affect the possibility of shared e-scooter related crashes in Tampa and St. Petersburg, FL, and also to capture determinants contributing to the level of injury of shared e-scooter related crashes in Tampa, FL.
• Background: Over the past few years, shared e-scooters have become a common form of micromobility; however, safety concerns have been raised due to the increased number of injury accidents involving e-scooters.
• Data and data sources: Survey questionnaires were designed to collect data from the general public on e-scooter sharing programs in Tampa and St. Petersburg, FL. The collected data include respondents’ …

Advanced Methods For Railroad Station Operation Decisions: Data Analytics, Optimization, Automation, Yuan Wang

USF Tampa Graduate Theses and Dissertations

The continued and substantial growth in railroad transportation in many countries inspires railroad operators to leverage advanced methods into better railroad operation decisions. Among all facilities, significant returns on investment can always be achieved by optimizing the operations of network nodes - junctions and stations, because stations usually form the capacity bottlenecks in the system.

There are thousands of decision-making problems in relation to the station operations and can be classified into different levels to achieve different goals. From top to bottom, high-level business strategies aim to make decisions to achieve long-term strategical benefits, such as optimizing local station functionalities …

Measuring Sustainable Development Through Tax Increment Financed Brownfield Redevelopment Statutes: A Florida Case Study, Jeff Burton

USF Tampa Graduate Theses and Dissertations

This research measures the theoretically sustainable development synergy of United States’ redevelopment, tax increment, and brownfield statutes and questions local redevelopment professionals on this combination’s implementation. This policy’s integration and application measurements guide increased knowledge and best practice methods in the path of America’s population migration into urbanized areas, thus managing the economic, environmental, and social impacts for future generations.

This examination used a pragmatic, qualitative, and quantitative mixed-method approach to identify, collect, code, and analyze redevelopment, tax increment, and state brownfields laws. An exhaustive literature review of the laws’ histories explained when and why they exist. In addition, a …

Designing Control Strategies For Connected And Automated Vehicles (Cavs) At Transportation Conflict Areas, Saeid Soleimaniamiri

USF Tampa Graduate Theses and Dissertations

Scheduling vehicles to pass a general conflict area is a common problem in traffic operations at various facilities, such as intersections, work-zones, and merging ramps. The advent of connected automated vehicle (CAV) technology provides unique opportunities for improving the traffic system performance and riding comfort at conflict areas. With the opportunities introduced by the emerging CAV technologies, this dissertation envisions building computationally efficient and applicable CAV-based control frameworks that can optimally serve traffic streams from different approaches while simultaneously or sequentially optimize CAV trajectories at conflict areas.

In our first study, we focus on a joint vehicle trajectories and signal …

“Fast Policy” And “Rule By Aesthetics”: A Preliminary Study Of Water Street Tampa –The “Worlding” Of An Aspiring “Icon Project”, Nousheen Rahman

USF Tampa Graduate Theses and Dissertations

In the age of “global urbanism” (Sheppard et al 2015; Chen and Kanna 2013), we are witnessing a markedly increased preference for mega-gentrification policies and projects by public officials seeking to revitalize deindustrialized and abandoned landscapes within their cities. The goal of this study is to describe how neoliberal public and private actors and institutions in the City of Tampa, specifically along the newly minted “Water Street” near the old Channel District of downtown, have adopted the discourses and practices of “fast policy” (Peck and Theodore 2015), “rule by aesthetics” (Ghertner 2010) and “worlding” (Ong and Roy 2011). To that …

Novel Approach To Integrate Can Based Vehicle Sensors With Gps Using Adaptive Filters To Improve Localization Precision In Connected Vehicles From A Systems Engineering Perspective, Abhijit Vasili

USF Tampa Graduate Theses and Dissertations

Research and development in Connected Vehicles (CV) Technologies has increased exponentially, with the allocation of 75 MHz radio spectrum in the 5.9 GHz band by the Federal Communication Commission (FCC) dedicated to Intelligent Transportation Systems (ITS) in 1999 and 30 MHz in the 5.9 GHz by the European Telecommunication Standards Institution (ETSI). Many applications have been tested and deployed in pilot programs across many cities all over the world.

CV pilot programs have played a vital role in evaluating the effectiveness and impact of the technology and understanding the effects of the applications over the safety of road users. The …

Theory And Algorithms For Systems Optimization, Vahid Mahmoodian

USF Tampa Graduate Theses and Dissertations

This dissertation presents four sets of contributions in the field of theory and algorithms for system optimization. In the first set, we introduce a simulation optimization method for redistributing bikes in a free-floating bike sharing system. The second set of contributions is a framework for batching queries in large databases to optimize the data retrieval time. The third set includes two branch-and-bound algorithms to solve minimum multiplicative programming problems and one branch-and-bound algorithm to solve the maximum form of the mentioned problems. At last, the fourth set presents an approach to fairlyassign delivery tasks in an outsourcing last-mile delivery system …