Transportation Commons^™

Analysis Of Safety Investment : Economic Benefit In Arctic Shipping To Shipping Companies And The Arctic Coastal States, Junjie Wan

World Maritime University Ph.D. Dissertations

Global warming severely affects the Arctic region, including ice coverage and thickness. In contrast, it allows unprecedented navigation opportunities for more extended periods each year, attracting maritime stakeholders because of the potential distance reduction compared to shipping corridor routes. However, mitigating Arctic navigation hazards requires safety investments, especially from shipowners and Arctic coastal states. When allocating limited resources to safety, decision-makers should efficiently prioritize their investments. This research aims to determine how to optimize shipping companies and Arctic coastal states’ safety investments. It begins with a comprehensive analysis of safety investments and safety economic benefits in Arctic shipping. Then, an …

Charting A Sustainable Course Beyond Carbon : A Critical Carbon-Water-Energy Assessment Of Net-Zero Shipping Scenarios With Synthetic Fuels And Ghc Offsetting, Alexandre Bellot

World Maritime University Ph.D. Dissertations

This thesis extends the scope of IMO maritime decarbonization studies by incorporating cradle-to-grave approaches. This study advocates for an approach incorporating cradle-to-grave resource efficiency and carbon neutrality, assessing cumulative energy demand and net freshwater withdrawal as key sustainability metrics. The thesis specifically addresses the question of the sustainability of decarbonization strategies centred on substituting fossil fuels with synthetic alternatives and offsetting the remaining carbon footprint. Advanced ship energy modelling: The thesis first introduces a ship energy model capable of evaluating ships’ fuel consumption with various propulsion and energy generation options. The model simulates energy transfers across a concept ship’s systems, …

Safety And Sustainability In The Domestic Ferry Sector : A Pci Framework For Esg-Aligned Maritime Governance, Mirza Zeeshan Baig

World Maritime University Ph.D. Dissertations

The domestic ferry sector is a significant component of maritime transportation. It strengthens social ties, supports economic growth and connects communities. Despites its importance, this industry faces ongoing challenges. These include fragmented governance, operational adequacies, safety risks and environmental concerns. The study deals with these issues by combining a systems-based approach with governance and change management theories. It examines the interplay between human, technical and organizational aspects. The study integrates the rule-based and rights-based maritime governance along with the Lewin’s three stage change management model (Unfreeze, Change, and Refreeze).

At the core of the study is the development of a …

Digital Transformation Of The Maritime Labour Law : Srems Complaints & Claims Legal, Digital Solution, Case Study Of Morocco, Rida El Missaoui

World Maritime University Dissertations

This Master’s dissertation investigates the strong need to reform and digitalize the mechanisms of monitoring and follow-up of the on-board compliance on seafarer’s rights and obligations through a legal-digital tool.

Long-Term Traffic Prediction Using Deep Learning Long Short-Term Memory, Ange-Lionel Toba, Sameer Kulkarni, Wael Khallouli, Timothy Pennington

School of Cybersecurity Faculty Publications

Traffic conditions are a key factor in our society, contributing to quality of life and the economy, as well as access to professional, educational, and health resources. This emphasizes the need for a reliable road network to facilitate traffic fluidity across the nation and improve mobility. Reaching these characteristics demands good traffic volume prediction methods, not only in the short term but also in the long term, which helps design transportation strategies and road planning. However, most of the research has focused on short-term prediction, applied mostly to short-trip distances, while effective long-term forecasting, which has become a challenging issue …

Transforming Urban Dynamics: Harnessing Large Language Models For Smarter Mobility, Hao Xue, Ming Jin, Shirui Pan, Flora Salim, Guansong Pang

Research Collection School Of Computing and Information Systems

Artificial intelligence (AI) has the potential to analyze mobility data and make mobility systems smarter by leveraging diverse data sources such as geospatial data, transportation logs, and real-time sensor data to optimize traffic flow, enhance public transportation systems, and support the development of autonomous vehicles. With the newly emerged generative AI paradigm, exemplified by large language models (LLMs), there is great potential to transform the current AI applications in mobility, transportation, and urban domains. This article provides an overview of recent efforts and aims to shed light on the challenges and future opportunities to facilitate the adaptation of LLMs for …

Should The X-Minute City Include Commutes? An Evaluation Using Commute And Well-Being Data From The Singapore Life Panel®, Sock Yong Phang, Yen Cong Wong, Stephen Hoskins

Research Collection School Of Economics

Over the past decade, the x-minute city — or “chrono-urbanism” — has gained traction intransport planning, emphasizing residents’ ability to access essential destinations within15-min travel time from their homes. Some cities, including Sydney and Singapore, haveextended this concept to commuting, with Singapore’s Land Transport Authority targetinga “45-min city” for daily commutes by 2040. While well-intentioned, applying time-basedgoals to commuting remains controversial. This study evaluates the validity of thex-minute commute city as a transport planning objective by examining the link betweencommuting duration and well-being. Using high-frequency panel data from 2,535Singapore residents aged 55 to 75, we analyze how commuting affects life …

Development Of Physics-Based Deterioration Models For Reinforced Soil Retaining Structures, Amr Morsy, Islam Ebo

Mineta Transportation Institute

Reinforced soil walls are key earth retention features in the transportation infrastructure. They are used to support and retain soil in a wide variety of crucial structures, such as highways, bridges, and railways, to ensure stability. They also provide solutions for constructing embankments and slopes in constrained spaces, allowing for efficient land use and improved infrastructure planning. This study used advanced numerical modeling to improve the understanding of the behavior and long-term performance of the aging reinforced soil walls from the 1970s for asset management purposes. An asset-scale model was created to simulate the effects of weather on these walls. …

Understanding Mobility-Related Challenges For Aapi Older Adults: A Preliminary Study In Southern California, Yongping Zhang, Priscila Salgado Inzunza, Carol Kachadoorian, Wen Cheng, Calvin Wong

Mineta Transportation Institute

The Federal Highway Administration (FHWA) and state Departments of Transportation (DOTs) Nationwide, the Asian American Pacific Islander (AAPI) community is projected to constitute 11 percent of people 65 years and older in the United States by 2050 (He et al., 2005). The challenges limiting the transportation and mobility of AAPI older adults include, but are not limited to, language barriers, cultural barriers, anti-Asian hate, accessibility to public transit, traffic safety and public security concerns, and changes to mobility due to the COVID-19 pandemic. This project conducted an extensive literature review and a preliminary multi-language survey in Southern California to better …

Conceptual Critical Success Factors Model On Infrastructure Sustainability Rating System For California Construction Projects, Joseph J. Kim, Jose A. Arroyo-Turcios

Mineta Transportation Institute

This report addresses the sensitivity and reliability of the sustainability rating systems by comparing each category’s verified scores with its respective submitted scores to evaluate how points are awarded for infrastructure projects, examine which categories present the most challenges for verification, and identify the best category for verification in the sustainability rating system. The authors conducted three analyses using credit score data obtained from fourteen actual civil infrastructure projects certified under Envision. First, the Natural World category had the highest average score from the submitted and verified data. Pairwise comparisons using t-tests indicate that the mean value of one category …

Bi-Objective Dynamic Tugboat Scheduling With Speed Optimization Under Stochastic And Time-Varying Service Demands, Xiaoyang Wei, Hoong Chuin Lau, Zhe Xiao, Xiuju Fu, Xiaocai Zhang, Zheng Qin

Research Collection School Of Computing and Information Systems

With the growing emphasis on green shipping to reduce the environmental impact of maritime transportation, optimizing fuel consumption with maintaining high service quality has become critical in port operations. Ports are essential nodes in global supply chains, where tugboats play a pivotal role in the safe and efficient maneuvering of ships within constrained environments. However, existing literature lacks approaches that address tugboat scheduling under realistic operational conditions. To fill the research gap, this is the first work to propose the bi-objective dynamic tugboat scheduling problem that optimizes speed under stochastic and time-varying demands, aiming to minimize fuel consumption and manage …

Developing A Roadmap For Green Port In Timor-Leste, Emanuel Da Silva Maia

World Maritime University Dissertations

No abstract provided.

Seasonal Pollen Increases Traffic Fatalities In The United States, Monica Deza

Population Health Research Brief Series

Traffic fatalities are the among the leading causes of death in the United States. Motor vehicle crash death rates have declined overall in the U.S. in recent decades, but there is substantial variation in rates across the country. Due to climate change, exposure to pollen has increased in various parts of the U.S. The antihistamine response triggered by pollen can result in poor physical and cognitive symptoms, thus impacting an individual’s ability to drive and increasing the risk of motor vehicle fatalities. This brief summarizes findings from a study that used data from the National Allergy Bureau (NAB) Pollen and …

Piloting A Zero-Emission Delivery Zone In Downtown Portland, Art Pearce, Sarah Pullman, Jacob Sherman

PSU Transportation Seminars

The Portland Bureau of Transportation (PBOT) was awarded a nearly $2 million Strengthening Mobility and Revolutionizing Transportation (SMART) Grant by the US Department of Transportation (USDOT) in Fall 2023 to pilot the country’s first regulated Zero-Emission Delivery Zone in downtown Portland and test digital infrastructure tools. This project will test an innovative set of incentives and regulations to better understand what technology and strategies municipalities can use to support and reduce greenhouse gas emissions in the freight sector.

While other cities in the United States have piloted voluntary Zero-Emission Delivery Zones (ZEDZs) to encourage the transition of commercial fleets to …

Breaking The Yoke: A Systematic Unmasking Of Challenges To Sustainable Rural Development In South Sudan, Gai Chol Paul

Journal of Sustainable Social Impact

South Sudan, a young nation grappling with the legacy of protracted conflict, faces significant challenges in fostering sustainable rural development. While the immense potential of its vast agricultural lands remains largely untapped, the persistent triple threat of insecurity, deficient infrastructure, and the absence of robust government policy actively hinders progress. The ongoing armed conflict, characterized by inter-communal violence and sporadic attacks, casts a long shadow over rural areas in South Sudan. Thus, I developed this mixed-method multiple-case study, grounded in the sustainable livelihoods framework, to explore challenges that hinder sustainable rural development in South Sudan. I collected data through document …

Consistent Vmt Mapping And Modeling In California: How Can We Better Assess The Vmt Impacts Of State And Local Transportation Projects?, Serena E. Alexander, Shams Tanvir, Syed Tanvir Ahmed, Annie Jones

Mineta Transportation Institute

Despite California’s ambitious target to achieve carbon neutrality by 2045, the state is not reducing greenhouse gas (GHG) emissions from personal vehicle travel, and per capita Vehicle Miles Traveled (VMT) and GHG emissions continue to increase. One central challenge of climate planning facing California is the lack of consistent methods to measure the VMT impacts of transportation projects. Using both qualitative and quantitative data, this research answers the question: “What are the advantages and limitations of existing VMT calculators to determine the climate impacts of transportation projects to help meet California’s climate goals?” Research methods included: (1) a quantitative analysis …

Modeling And Regulating A Ride-Sourcing Market Integrated With Vehicle Rental Services, Dong Mo, Hai Wang, Zeen Cai, W. Y. Szeto, Xiqun (Michael) Chen

Research Collection School Of Computing and Information Systems

With the popularity of on-demand ride services worldwide, ride-sourcing platforms must maintain an adequate fleet size and cope with growing travel demand. Recently, platforms have attempted to provide vehicle rental services to drivers who do not own cars, then recruited them to provide on demand ride services. This helps lower the entry barrier for drivers and offers another profitable business for platforms. From the government's perspective, however, it is challenging to coordinately regulate a ride-sourcing business and vehicle rental business. This paper proposes a bi-level optimization model to investigate how the government regulates the ride-sourcing market integrated with vehicle rental …

Establishing A Robust Decision Framework To Support Transportation Planning Decisions And Accommodate Connected And Autonomous Transportation Alternatives, Bobby Cottam

Graduate Theses and Dissertations

Transportation planning involves complex decisions to provide high-quality transportation systems involving multiple stakeholders with numerous competing interests, on top of that they are trying to improve the quality and reliability of those systems on shrinking budgets. This decision is further complicated by the advent of new transportation methods e.g., ride-hailing and the promise of connected and autonomous vehicles (CAVs). While the actual short-term impact of these technologies is uncertain, they will most certainly have a significant impact within the 20-year planning horizon that transportation planners typically consider. These technologies are also blurring the lines between traditionally separate modes of transportation; …

Practice Unveils Weaknesses: Analysing The Implementation Of Regulations On Seafarers’ Work/Rest Hours, Bikram S. Bhatia

World Maritime University Ph.D. Dissertations

Seafarers’ fatigue risk management is rooted in regulations on manning and work/rest hours. These regulations establish a minimum fatigue management standard achieved through work/rest hours compliance. Seafarers must maintain daily records of their work/rest hours and report any non-compliance to their company. However, adjustments to these records have been reported in the literature. Such malpractice obscures instances of non- compliance and hinders the feedback necessary for resolving these issues, including flag State review and amendments to minimum safe manning documents. It compromises the integrity of fatigue risk management and underscores the need for further research.

This study examined the implementation …

Active Transportation Term Guide, Kalonni Steib

Capstone Projects and Master's Theses

The Monterey County Health Department, through its Planning, Evaluation, and Policy (PEP) Department, is dedicated to promoting health equity by implementing strategic plans, aligning performance standards with national accreditation, and addressing social and environmental policies. Serving underserved and unincorporated communities, PEP focuses on overcoming language barriers in Monterey County, which has a significant Hispanic and Latino population. This project aimed to develop a bilingual glossary of active transportation terms to enhance communication between the community and government agencies. Implemented over three to six months, the glossary was piloted for feedback and updates. The project successfully identified key transportation terms and …