The Distributional Impacts Of Transportation Networks In China, 2024 Singapore Management University
The Distributional Impacts Of Transportation Networks In China, Lin Ma, Yang Tang
Research Collection School Of Economics
We document that the quality of roads and railroads vary substantially over time and space in China, and neglecting these variations biases the distributional impacts of transportation networks. To account for quality differences, we construct a new panel dataset and approximate quality using the design speed of roads and railroads that varies by vintage, class, and terrain at the pixel level. We then build a dynamic spatial general equilibrium model for multiple modes, transportation routes, and forward-looking migration decisions. Our findings demonstrate that disregarding quality differences leads to a median bias of approximately 31% in estimating real wage growth rates …
A Double Taboo? An Exploratory Study Of Mental Health Perceptions Amongst Black Aerospace Professionals, 2024 University of Nebraska at Omaha
A Double Taboo? An Exploratory Study Of Mental Health Perceptions Amongst Black Aerospace Professionals, Theodore W. Johnson Ph.D., Arlean Timmons, Kenisha V. Ford, Harriet Sanya
National Training Aircraft Symposium (NTAS)
This exploratory study delves into the often-overlooked realm of mental health perceptions among Black aerospace professionals, shedding light on a double taboo within a historically stigmatized industry and community. In response to the escalating mental health crisis in the U.S. and scarcity of research focusing exclusively on the mental health experiences of Black aerospace professionals, this research endeavors to uncover their unique perspectives.
The findings from the study indicate that Black aerospace professionals navigate not only the universal challenges of mental health but also complex socio-cultural and workplace factors, such as discrimination, underrepresentation, and the historic reluctance to discuss mental …
Investigating The Effects Of Alcohol Consumption On Manual And Automated Driving: A Systematic Review, 2024 San Jose State University
Investigating The Effects Of Alcohol Consumption On Manual And Automated Driving: A Systematic Review, Miaomiao Dong, Yuni Lee, Jackie Cha, Gaojian Huang
Mineta Transportation Institute Publications
There are direct correlations between drunk driving and car-related injuries, disabilities, and death. Autonomous vehicles (AVs) may provide useful driver support systems to prevent or reduce road accidents. However, AVs are not yet fully automated and require human drivers to take over the vehicle at times. Therefore, understanding how alcohol affects driving performance in both manual and automated driving is important because manual drives may offer insights into the takeover process in AVs. A systematic review of 53 articles from eight databases was conducted. Findings were categorized based on the human information processing model, which can be extended to the …
Beneath I-280: Excavating A Neighborhood Lost To San José Freeways, 2024 University of California, Los Angeles
Beneath I-280: Excavating A Neighborhood Lost To San José Freeways, Leila Ullmann, Gordon Douglas
Mineta Transportation Institute Publications
Throughout the 1960s and 1970s, thousands of people in San José, California were displaced from their homes as the state used eminent domain to purchase land and uproot neighborhoods for the construction of Interstate freeways. This report presents a multifaceted research and public knowledge effort that uncovers some of the communities buried beneath these freeways, in the area where I-280 and CA-87 meet today near downtown San José. The project builds primarily from previously unprocessed California Department of Transportation (CalTrans) archival documents, which this project studies for the first time. The records are rich in detail about valuation and sale …
Examining Causes And Outcomes Of Migration Patterns Out Of Southeast Michigan, 2024 Department of Urban Studies and Planning, Wayne State University, Detroit, MI
Examining Causes And Outcomes Of Migration Patterns Out Of Southeast Michigan, Alex B. Hill, Rayman Mohamed, Allan Yang
Urban Studies and Planning Faculty Research Publications
This report describes a survey of U-Haul patrons regarding their experiences utilizing U-Haul to move out of the Southeast Michigan region.
Executive Summary
In the latest U-Haul Growth Index, the state of Michigan moved from ranking 48 out of 50 states up to 46. This represents a relatively small change that doesn’t relate to the documented population loss in the state.
The city of Detroit and Michigan are both at critical crossroads. Population declines are pushing local officials to come up with new and unique programs to attract new residents, new business investment, and new tax revenue.
The reasons that …
Containerization Of Seafarers In The International Shipping Industry: Contemporary Seamanship, Maritime Social Infrastructures, And Mobility Politics Of Global Logistics, 2024 The Graduate Center, City University of New York
Containerization Of Seafarers In The International Shipping Industry: Contemporary Seamanship, Maritime Social Infrastructures, And Mobility Politics Of Global Logistics, Liang Wu
Dissertations, Theses, and Capstone Projects
This dissertation discusses the mobility politics of container shipping and argues that technological development, political-economic order, and social infrastructure co-produce one another. Containerization, the use of standardized containers to carry cargo across modes of transportation that is said to have revolutionized and globalized international trade since the late 1950s, has served to expand and extend the power of international coalitions of states and corporations to control the movements of commodities (shipments) and labor (seafarers). The advent and development of containerization was driven by a sociotechnical imaginary and international social contract of seamless shipping and cargo flows. In practice, this liberal, …
Cooperative Trucks And Drones For Rural Last-Mile Delivery With Steep Roads, 2024 Singapore Management University
Cooperative Trucks And Drones For Rural Last-Mile Delivery With Steep Roads, Jiuhong Xiao, Ying Li, Zhiguang Cao, Jianhua Xiao
Research Collection School Of Computing and Information Systems
The cooperative delivery of trucks and drones promises considerable advantages in delivery efficiency and environmental friendliness over pure fossil fuel fleets. As the prosperity of rural B2C e-commerce grows, this study intends to explore the prospect of this cooperation mode for rural last-mile delivery by developing a green vehicle routing problem with drones that considers the presence of steep roads (GVRPD-SR). Realistic energy consumption calculations for trucks and drones that both consider the impacts of general factors and steep roads are incorporated into the GVRPD-SR model, and the objective is to minimize the total energy consumption. To solve the proposed …
Data From: Active Transportation Counts From Existing On-Street Signal And Detection Infrastructure, 2024 Portland State University
Data From: Active Transportation Counts From Existing On-Street Signal And Detection Infrastructure, Sirisha Kothuri, Patrick Allen Singleton, Mahyar Vahedi Saheli, Elizabeth Yates, Joseph P. Broach
Civil and Environmental Engineering Faculty Datasets
This study’s objective was to use data from existing traffic signal infrastructure to estimate pedestrian volumes. Pedestrian push-button actuations were collected from signal controller logs at 49 intersections in western Oregon and an additional 16 intersections in eastern Oregon. These actuations were then compared to observed pedestrian counts, totaling over 34,000 people, obtained from video recordings. After exploring various options, a simple quadratic relationship was modeled using a single measure of pedestrian signal activity: the number of push-button presses (filtered to remove multiple presses within 15 seconds). The model’s predictions showed a correlation of 0.86 with observed pedestrian volumes and …
What Drives Housing Choices Of Refugees And Immigrants?, 2024 University of Texas at Arlington
What Drives Housing Choices Of Refugees And Immigrants?, Diane Mitschke, Anne Nordberg, Stephen Mattingly, Katherine Kitchens, Yasmin Al-Zubi, Farah Naz
TREC Project Briefs
When newcomers to the US initially settle, if their chosen location does not meet their expectations or needs, that often propels them to relocate. To determine what helps drive those transition decisions, the researchers interviewed people if they fulfilled one of these requirements:
- They were members of the Dallas County community who were planning to move in the next five years.
- They had recently (within the past five years) moved from their initial residence following their arrival in Dallas County.
- They also had to be immigrants to or refugees in the US who were at least eighteen years old. Out …
Housing Choice, Transportation Equity, And Access To Opportunities In Refugee And Immigrant Communities, 2024 University of Texas at Arlington
Housing Choice, Transportation Equity, And Access To Opportunities In Refugee And Immigrant Communities, Diane Mitschke, Anne Nordberg, Stephen Mattingly, Katherine Kitchens
TREC Final Reports
Mobility directly impacts access to opportunities for all protected classes; however, transportation planning and public transit agencies and housing authorities rarely coordinate affordable housing and the transportation system planning decisions. This lack of coordination often leads to mismatches between access to opportunities and affordable housing. Safe access to employment, quality schools, and healthcare represent a few of the many factors that may influence housing choice. For most households with budget constraints, all of these factors may not be achievable. While existing research documents the mismatch between affordable housing and access to opportunities, the role that mobility plays in residential selection …
Characterization Of Recent Wild Pig‑Vehicle Collisions In Georgia, Usa, 2024 USDA FS Colorado
Characterization Of Recent Wild Pig‑Vehicle Collisions In Georgia, Usa, Jeremiah L. Psiropoulos, Emily Howe, John J. Mayer, Sophie C. Mckee
USDA Wildlife Services: Staff Publications
Vehicle collisions with wild pigs (Sus scrofa) are reported almost everywhere this species is found. However, this is one of the least studied and characterized forms of damage that these invasive animals cause in the United States (US). We analyzed 518 wild pig-vehicle collisions (WPVCs) that took place statewide in Georgia between 2015 and 2021. From that dataset, we analyzed several parameters in order to better understand and characterize these accidents on a scale that had previously not been done in the US. Wild pig-vehicle collisions were reported from 105 out of the 159 counties in Georgia, increasing …
A Practical Framework For Component-Level Structural Health Monitoring Of The Gerald Desmond Bridge, 2024 California State University, Long Beach
A Practical Framework For Component-Level Structural Health Monitoring Of The Gerald Desmond Bridge, Mehran Rahmani, Vesna Terzic, Andrea Calabrese, Brittany Cambell
Mineta Transportation Institute Publications
Bridges serve as critical transportation infrastructure, but traditional maintenance inspection to ensure their safety is time-consuming, costly, and labor-intensive, especially for larger and more complex structures. This study presents a practical framework for the instrumentation, data acquisition, and remote condition assessment of the Gerald Desmond Bridge, California’s largest cable-stayed bridge. The framework aims to establish a foundation for real-time or near real-time remote health monitoring of the bridge’s critical elements. The study highlights the advantages of remote monitoring in terms of efficiency, cost-effectiveness, and early detection of damage.
Trust: The Feature That Vending Machines And Atms Share, But Simplygo Lacks, 2024 Singapore Management University
Trust: The Feature That Vending Machines And Atms Share, But Simplygo Lacks, Sun Sun Lim
Research Collection College of Integrative Studies
The article discussed the intricacies of trust in the SimplyGo debacle and highlighted how the design of physical interfaces like vending machines and ATMs and digital interfaces from apps like Grab, Parking.sg and ShopBack have critical features to instil trust. People need to be reassured that their transactions have proceeded as they should, and thay have not been short-changed.
Policy Brief: Evaluation Of The Safety Of Pedestrian Crossing Treatments In Small And Rural Communities, 2024 University of Vermont
Policy Brief: Evaluation Of The Safety Of Pedestrian Crossing Treatments In Small And Rural Communities, Parsa Pezeshknejad, Dana Rowangould, James Sullivan
University of Vermont Transportation Research Center
TRC Policy Brief: Rural areas often lack adequate pedestrian infrastructure, resulting in elevated safety risks for pedestrians. The combination of higher speed limits and reduced driver awareness amplifies the potential for pedestrian collisions when crossing the roadway.
This study addresses uncertainty about the effectiveness of rectangular rapid flashing beacons (RRFBs) and LED-embedded signs (LESs) as potential safety interventions. RRFBs and LESs are both pedestrian crossing treatments that allow pedestrians to activate lights to alert drivers of their intent to cross. RRFBs include horizontal LED lights mounted to the sign pole, while LESs include LEDs embedded in the edge of the …
Ua1c11/127 Stephen Flora Photo Collection, 2024 Western Kentucky University
Ua1c11/127 Stephen Flora Photo Collection, Wku Archives
WKU Archives Collection Inventories
Photographs donated by WKU alumnus Stephen Flora, taken for class and College Heights Herald.
App-Based Data Collection To Characterize Latent Transportation Demand Within Marginalized And Underserved Populations, 2024 University of Texas, Arlington
App-Based Data Collection To Characterize Latent Transportation Demand Within Marginalized And Underserved Populations, Noelle L. Fields, Courtney Cronley, Stephen Mattingly, Nicole Iroz-Elardo, David Levine, Nithisha Gudipati, Cristine Highfill, Mary Kris Stringfelllow, Anna O'Dell, Rebecca Cole, Melody Huslage
TREC Final Reports
Our interdisciplinary team refined an app prototype, MyAmble, to gather data related to quantity of transportation disadvantage and latent demand, and to identify psycho-social-economic corollaries. MyAmble utilizes a traditional travel diary format but expands the type of trips measured to include 1) completed trips, 2) missed trips, and 3) latent travel demand. The app also measures the real-time perceived impact of transportation behaviors (realized and latent) on participants’ physical health, mental health, social engagement, and employment/academics. Finally, the app has a text-messaging feature, Travel Buddy, that is used to increase participant engagement and retention over longitudinal data collection. The project …
Reducing Food Scarcity: The Benefits Of Urban Farming, 2023 Brigham Young University
Reducing Food Scarcity: The Benefits Of Urban Farming, S.A. Claudell, Emilio Mejia
Journal of Nonprofit Innovation
Urban farming can enhance the lives of communities and help reduce food scarcity. This paper presents a conceptual prototype of an efficient urban farming community that can be scaled for a single apartment building or an entire community across all global geoeconomics regions, including densely populated cities and rural, developing towns and communities. When deployed in coordination with smart crop choices, local farm support, and efficient transportation then the result isn’t just sustainability, but also increasing fresh produce accessibility, optimizing nutritional value, eliminating the use of ‘forever chemicals’, reducing transportation costs, and fostering global environmental benefits.
Imagine Doris, who is …
Influence Of Pavement Conditions On Commercial Motor Vehicle Crashes, 2023 Howard University
Influence Of Pavement Conditions On Commercial Motor Vehicle Crashes, Stephen Arhin, Babin Manandhar, Adam Gatiba
Mineta Transportation Institute Publications
Commercial motor vehicle (CMV) safety is a major concern in the United States, including the District of Columbia (DC), where CMVs make up 15% of traffic. This research uses a comprehensive approach, combining statistical analysis and machine learning techniques, to investigate the impact of road pavement conditions on CMV accidents. The study integrates traffic crash data from the Traffic Accident Reporting and Analysis Systems Version 2.0 (TARAS2) database with pavement condition data provided by the District Department of Transportation (DDOT). Data spanning from 2016 to 2020 was collected and analyzed, focusing on CMV routes in DC. The analysis employs binary …
Scooting To A Brighter Tomorrow: Shared E-Scooters And Their Use In Lincoln, Nebraska, 2023 University of Nebraska-Lincoln
Scooting To A Brighter Tomorrow: Shared E-Scooters And Their Use In Lincoln, Nebraska, Tanner J. Hiemer
Community and Regional Planning Program: Theses and Student Projects
As a recent addition to our transportation systems, shared e-scooters have the potential to improve how people travel in the urban environment. While there is a lot to be hopeful about, the relative novelty of e-scooters calls for closer examination of how they interact with the built environment and other modes of transportation. Additionally, the equity of shared e-scooters must be at the forefront of discussion when considering their utility in the future. Given their flexibility in use, e-scooters could fill spatial gaps in transportation systems and provide improved mobility to those who are most transportation disadvantaged. This research aims …
Evaluating Benefits From Transportation Investments Aligned With The Climate Action Plan For Transportation Infrastructure (Capti), 2023 San Jose State University
Evaluating Benefits From Transportation Investments Aligned With The Climate Action Plan For Transportation Infrastructure (Capti), Serena Alexander, Shams Tanvir, T. William Lester
Mineta Transportation Institute Publications
Building upon two executive orders targeting the mitigation of greenhouse gas (GHG) emissions in California, the Climate Action Plan for Transportation Infrastructure (CAPTI) offers a comprehensive plan to work toward a more unified vision for transportation that prioritizes climate, health, and social equity. The purpose of this project was to help evaluate the benefits from transportation investments across the State of California. With support from Caltrans, the research team provided a holistic evaluation framework that involved an analysis of vehicle miles traveled (VMT) and emissions impacts, an economic impact analysis, and an equity analysis of transportation investments in California. Findings …