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Articles 1 - 30 of 156
Full-Text Articles in Transportation
A Comprehensive Study Of Crash Severity And Its Contributing Factors, Seyedmahyar Madarshahian
A Comprehensive Study Of Crash Severity And Its Contributing Factors, Seyedmahyar Madarshahian
Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–
This dissertation presents a comprehensive analysis of factors influencing crash injury severity across diverse road and work zone environments. Using advanced statistical modeling techniques, it examines crash outcomes in four critical contexts: general road crashes, work zone crashes, truck-involved crashes, and high-speed rear-end collisions. A mixed logit modeling framework with random parameters, incorporating heterogeneity in parameter means and variances, is employed to capture unobserved heterogeneity in crash data. The analyses are further refined through targeted segmentation by speed regime, work zone type, and crash type to identify context-specific risk factors. In addition, a fuzzy cluster analysis is utilized to discern …
An Integrated Multivariate Econometric Modeling Framework For Risky Driving Behavior Related Crashes: Evaluating Crash Risk And Severity Across Zones, Pabitra Kumar Roy
An Integrated Multivariate Econometric Modeling Framework For Risky Driving Behavior Related Crashes: Evaluating Crash Risk And Severity Across Zones, Pabitra Kumar Roy
Dissertations and Theses
Rapid advancements in crash modeling have yet to fully integrate multiple behavior-driven crash types and their severity outcomes within a single, scalable framework, specially in a way that captures the sequential nature of these behaviors where one risky action may amplify another. This study proposed an integrated multivariate econometric framework to jointly model crash frequency and severity outcomes for three major behaviorally driven crash types: alcohol-related, distraction-related, and aggressive-driving-related crashes. Specifically, using Oregon's 2022 census block group-level crash data, we propose an Integrated Multivariate Negative Binomial – Generalized Ordered Probit Fractional Split (IMNB–GOPFS) model to analyze these dimensions simultaneously while …
China’S Influence Over The Mining Industry In Africa, Safa M. Altamimi, Reda Amer
China’S Influence Over The Mining Industry In Africa, Safa M. Altamimi, Reda Amer
Undergraduate Research Symposium
How much influence does China have over the international supply of minerals from Africa? The purpose of this research is to study China’s involvement in Africa’s mining industry and analyze its impact on US economic interests. China has traded and invested in many mining sites across Africa; However, I will be focusing on DRC, Zambia, and Zimbabwe for my research. Using ArcGIS pro tools, I will create and analyze a map that contains information about mineral deposits and facilities.
Transportation Practitioners' Reflections On Addressing Transportation Barriers For Vulnerable Populations In Nebraska, Aysan Esmaely
Transportation Practitioners' Reflections On Addressing Transportation Barriers For Vulnerable Populations In Nebraska, Aysan Esmaely
Community and Regional Planning Program: Theses
This study examines transportation planning practices and challenges in Nebraska, with particular attention to how planners and agencies address the needs of vulnerable populations. Using a qualitative approach, thirty-five transportation planners, practitioners, and service providers were interviewed. Participants were selected based on their professional in transportation planning and service delivery. The study explores what institutional and funding barriers planners and practitioners face, and what strategies they consider most effective for improving access and inclusion. Findings reveal that limited funding, fragmented authority, and the absence of a coordinated regional planning framework significantly constrain transportation development across Nebraska. While metropolitan areas such …
A Comparative Analysis Of Complete Streets And Multimodal Transport Approaches: Implications For Sustainable Urban Mobility In Lincoln, And Global Contexts, Oliva Richard Kilyenyi
A Comparative Analysis Of Complete Streets And Multimodal Transport Approaches: Implications For Sustainable Urban Mobility In Lincoln, And Global Contexts, Oliva Richard Kilyenyi
Department of Civil and Environmental Engineering: Dissertations, Theses, and Student Research
Movement of people and goods in urban areas through different modes of transportation including walking, cycling, public transit and by autos is termed as urban mobility. Urban mobility presents significant environmental, social, and economic challenges for cities worldwide as they grapple with the impacts of conventional transportation systems, particularly in North America context where car-centric planning approaches has dominated urban developments since 1950s. Car-centric dominance is 80% in North American Metropolitan areas (Manaugh et al., 2015). The impacts of these conventional systems include greenhouse gas emission emissions contributing approximately 24% of global carbon dioxide (CO2) emissions, air pollution …
Can Better Transportation Infrastructure Help Bridge The Gender Mobility Gap?: Analysis Of The Dhaka Metro Rail, Prottoy A. Akbar, Tomoki Fujii, Arpita Khanna, Abu S. Shonchoy
Can Better Transportation Infrastructure Help Bridge The Gender Mobility Gap?: Analysis Of The Dhaka Metro Rail, Prottoy A. Akbar, Tomoki Fujii, Arpita Khanna, Abu S. Shonchoy
Research Collection School Of Economics
Inadequate transportation infrastructure is a pressing challenge in rapidly expanding urban centers globally. However, the differential impacts of infrastructure improvements for women versus men remain inadequately understood and underexplored. This study addresses this knowledge gap by documenting gender-specific travel patterns and perceptions of safety in Dhaka, Bangladesh. Specifically, we analyze how the introduction of Dhaka’s first mass rapid transit (MRT) line has altered modes of transportation, the frequency of travel, and safetyrelated concerns among women. Our empirical findings highlight that the new MRT line has notably influenced women’s travel behaviors, particularly by alleviating safety concerns that previously discouraged regular travel.
Exploring Electric Bicycle Safety Performance Data And Policy Options For California, Asha Weinstein Agrawal, Kevin Fang
Exploring Electric Bicycle Safety Performance Data And Policy Options For California, Asha Weinstein Agrawal, Kevin Fang
Mineta Transportation Institute
This study was conducted as directed by California Senate Bill 381 (2023), which called for research to help policymakers develop effective laws and policy to support the twin goals of expanding electric bicycle use and protecting the safety of electric bicycle riders and other road users. The three major strands of findings presented in this report are (1) a review of how California and other states (and countries) regulate electric bicycle use, (2) a review of the electric bicycle safety literature, including original analysis of primary data on crashes, injuries, and deaths, and (3) strategies that the state could adopt …
An Assessment Of The Viva Callesj September 2025 Event In San José, Richard Kos, Adam Cohen
An Assessment Of The Viva Callesj September 2025 Event In San José, Richard Kos, Adam Cohen
Mineta Transportation Institute
Viva CalleSJ is an open-streets initiative where several miles of the City of San José’s streets are closed to vehicular traffic, allowing residents to walk, bike, scooter, and skate freely. This report evaluates the Viva CalleSJ event held in San José on September 7, 2025, which attracted more than 150,000 participants. Using a mixed-methods approach, this evaluation examines aspects such as attendance, activities, modal access, and economic impacts, utilizing data from participant surveys (in English, Spanish, and Vietnamese), interviews, and observational analysis. The findings indicate that the Viva CalleSJ September 2025 event was largely successful in achieving its objectives, including …
What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Sixteen Of A National Survey, Asha Weinstein Agrawal, Hilary Nixon
What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Sixteen Of A National Survey, Asha Weinstein Agrawal, Hilary Nixon
Mineta Transportation Institute
This report summarizes the results from the sixteenth year of a national public opinion survey asking U.S. adults questions related to their views on federal transportation taxes. A nationally representative sample of 2,539 respondents completed the online survey from February 3 to February 27, 2025. The questions test public opinions about raising the federal gas tax rate, replacing the federal gas tax with a new mileage fee, and imposing a mileage fee just on commercial travel. In addition to asking directly about support for these tax options, the survey collected data on respondents’ views on the quality of their local …
Building Oregon's Statewide Multimodal Transportation Inventory With Ai And Interagency Collaboration, Ben Stabler, Theresa Conley
Building Oregon's Statewide Multimodal Transportation Inventory With Ai And Interagency Collaboration, Ben Stabler, Theresa Conley
PSU Transportation Seminars
ODOT and 48+ local agencies are collaborating on the development of a multimodal data set for transportation planning within metropolitan areas. Revisions to Oregon's Transportation Planning Rules (TPR) set in motion the need for more multimodal data and analysis in local plans. The multimodal data inventory includes vehicle and freight facilities, bicycle and pedestrian facilities, transit facilities, and other relevant data such as key destinations and crashes. Starting from the local agency GIS systems and supplemented with real world use of AI for developing bicycle and pedestrian facilities, the team is defining and constructing a shared statewide multimodal data set. …
Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray
Investigating The Relationship Between Noun Classes And Plant Folk Taxonomy In Chasu Language Of Kilimanjaro Region In Tanzania, Peter Rabson Mziray
Journal of Humanities and Social Sciences
The current study investigates the relationship between noun classes and plant folk taxonomy in Chasu (G 22). The study focuses on two objectives: the first objective is to describe the plant folk taxonomy in Chasu and the second objective is to determine the relationship between noun classes and plant folk taxonomy in Chasu. Data were collected from rural villages in Same and Mwanga districts by using free listing, field interviews (jungle-walk-and-identify), and written texts containing Chasu plant names. The findings reveal that Chasu folk taxonomy reflects different ethnobotanical categories; including a unique beginner which is mmea/mimea ‘plant(s)’, and three life …
Broadening Workforce Participation In Transportation: Challenges And Strategies, Jodi Godfrey, Stephanie Ivey
Broadening Workforce Participation In Transportation: Challenges And Strategies, Jodi Godfrey, Stephanie Ivey
Mineta Transportation Institute
Attracting and retaining a diverse, skilled workforce remains one of the most pressing challenges in the transportation industry. A new MTI-led California State University Transportation Consortium report examines why workforce participation gaps persist and identifies practical strategies organizations can implement to address them. Drawing on an extensive literature review, a nationwide industry survey with 996 respondents, and in-depth interviews with 15 transportation professionals, the study highlights both the barriers and the solutions to workforce participation. The findings emphasize that open dialogue, intentional investment, and inclusive workplace policies can help transform industry culture, making transportation careers more appealing to a broader …
Information Strategies In The Electric Vehicles Battery Reverse Supply Chain With Blockchain Technology, Tianqin Shi, Yanting Huang
Information Strategies In The Electric Vehicles Battery Reverse Supply Chain With Blockchain Technology, Tianqin Shi, Yanting Huang
Mineta Transportation Institute
The surge in demand for electric vehicles (EV) and EV batteries, coupled with supply chain vulnerabilities and price instability, has driven the need for efficient and sustainable EV battery recycling processes. This report investigates the potential of blockchain technology to address the challenges in the EV battery reverse supply chain (moving goods from the end customer back towards the manufacturer), focusing on enhancing transparency and coordination, as well as mitigating the impact of unregulated recycling. Key stakeholders in this analysis include manufacturers, recyclers, and regulatory bodies. To achieve these objectives, the study employs a mixed-methods approach. It includes semi-structured interviews …
Development Of Green Port Index : A Tool For Assessing Ports Based On Implementation Of Ghg Emission Reduction Measures, Mamadou Lamin Bajo
Development Of Green Port Index : A Tool For Assessing Ports Based On Implementation Of Ghg Emission Reduction Measures, Mamadou Lamin Bajo
World Maritime University Dissertations
No abstract provided.
Feasibility Of Adopting Reformed Methanol–High Temperature Proton Exchange Membrane Fuel Cell Technology For The Propulsion Of Seagoingvessel, Toochukwu Patricia Obasi
Feasibility Of Adopting Reformed Methanol–High Temperature Proton Exchange Membrane Fuel Cell Technology For The Propulsion Of Seagoingvessel, Toochukwu Patricia Obasi
World Maritime University Dissertations
No abstract provided.
The Importance Of Green Ammonia In Namibia's Decarbonisation Of Shipping : Economic Prospects And Port Infrastructure Obstacles, Lazarus Shiimwaningi Emvula
The Importance Of Green Ammonia In Namibia's Decarbonisation Of Shipping : Economic Prospects And Port Infrastructure Obstacles, Lazarus Shiimwaningi Emvula
World Maritime University Dissertations
No abstract provided.
Exploring Challenges And Opportunities For Green Shipbuilding In South Africa : A Maritime Energy Management Perspective, Masego Mmamolobye Lucia Mosupye
Exploring Challenges And Opportunities For Green Shipbuilding In South Africa : A Maritime Energy Management Perspective, Masego Mmamolobye Lucia Mosupye
World Maritime University Dissertations
No abstract provided.
The Port Of Mombasa As A Potential Green Hydrogen Hub : A Techno-Economic Feasibility Study, Rose Mbula Mutevu
The Port Of Mombasa As A Potential Green Hydrogen Hub : A Techno-Economic Feasibility Study, Rose Mbula Mutevu
World Maritime University Dissertations
No abstract provided.
Feasibility Of Onshore Power Supply For Port Electrification : A Business Case For Ports, Atti Abbas Shah
Feasibility Of Onshore Power Supply For Port Electrification : A Business Case For Ports, Atti Abbas Shah
World Maritime University Dissertations
No abstract provided.
Examining The Perception Of Maritime Instructors In Upskilling And Reskilling Seafarers Towards Decarbonization, Michelle Margallo
Examining The Perception Of Maritime Instructors In Upskilling And Reskilling Seafarers Towards Decarbonization, Michelle Margallo
World Maritime University Dissertations
No abstract provided.
Enhancing Seafarer Competence In Nigeria : Challenges And Opportunities, Alexander Chike Melifonwu
Enhancing Seafarer Competence In Nigeria : Challenges And Opportunities, Alexander Chike Melifonwu
World Maritime University Dissertations
No abstract provided.
Improving Auditing Of The Maritime Education And Training Institutes Of Peru : Process Analysis And Perspectives Of The Stakeholders To Design A Training Program For Auditors, Juan Alberto Sanchez Castañeda
Improving Auditing Of The Maritime Education And Training Institutes Of Peru : Process Analysis And Perspectives Of The Stakeholders To Design A Training Program For Auditors, Juan Alberto Sanchez Castañeda
World Maritime University Dissertations
No abstract provided.
E-Counseling Platform For Seafarers’ Sound Mental Health : Prospects And Challenges To Implement Globally On-Board Ships, Farzana Yasmin
E-Counseling Platform For Seafarers’ Sound Mental Health : Prospects And Challenges To Implement Globally On-Board Ships, Farzana Yasmin
World Maritime University Dissertations
No abstract provided.
Green Shipping Corridors In West Africa : Overcoming Barriers And Unlocking Opportunities For Maritime Decarbonization, Bismark Owoahene Acheampong
Green Shipping Corridors In West Africa : Overcoming Barriers And Unlocking Opportunities For Maritime Decarbonization, Bismark Owoahene Acheampong
World Maritime University Dissertations
No abstract provided.
A Just Transition For Female Seafarers : Ensuring Gender Equality In The Sustainable Maritime Industry, Danisa Ama Buakah
A Just Transition For Female Seafarers : Ensuring Gender Equality In The Sustainable Maritime Industry, Danisa Ama Buakah
World Maritime University Dissertations
No abstract provided.
Human Element And Emerging Technologies : Imo Efforts To Address The Impact Of Digitalization In The Context Of Automation On Board, Eduardo Matías Hidalgo Bassi
Human Element And Emerging Technologies : Imo Efforts To Address The Impact Of Digitalization In The Context Of Automation On Board, Eduardo Matías Hidalgo Bassi
World Maritime University Dissertations
No abstract provided.
Wreck Removal : Assessing Nigeria’S Compliance With The Nairobi Wreck Removal Convention 2007, Richard Oritsejomayo Iyinbo
Wreck Removal : Assessing Nigeria’S Compliance With The Nairobi Wreck Removal Convention 2007, Richard Oritsejomayo Iyinbo
World Maritime University Dissertations
No abstract provided.
Decarbonization And Climate Justice : Challenges And The Effect On Shipowners, Sofiana Kontouri
Decarbonization And Climate Justice : Challenges And The Effect On Shipowners, Sofiana Kontouri
World Maritime University Dissertations
No abstract provided.
Precarity At Sea : Legal Challenges And Protection Of Maritime Workers, Wenjuan Li
Precarity At Sea : Legal Challenges And Protection Of Maritime Workers, Wenjuan Li
World Maritime University Dissertations
No abstract provided.
Legal Analysis Of Isps Code Implementation In Somalia : Case Study : Port Of Mogadishu, Idil Mohamed
Legal Analysis Of Isps Code Implementation In Somalia : Case Study : Port Of Mogadishu, Idil Mohamed
World Maritime University Dissertations
No abstract provided.