Transportation Commons^™

Interrogating The State Of Application Of Technology Within The Malawi Maritime Force As Maritime Expression : A Task-Technology Fit Approach, Gift William Kamwendo

World Maritime University Dissertations

No abstract provided.

Stakeholder Perception Of Financial Incentive In Truck Appointment Systems At Chittagong Port, Suraya Yeasmin Jui

World Maritime University Dissertations

This dissertation investigates Chittagong Port Authority (CPA) stakeholder perceptions of financial incentives in Truck Appointment Systems (TAS), aiming to address the escalating congestion and operational challenges posed by peak-time truck arrival frequency. The objectives of this research are as follows: (i) To identify the factors that influence trucking companies to arrive at the CPA gate during peak hours. (ii) To evaluate stakeholder perceptions of the effectiveness of financial incentives in the TAS to reduce peak-time truck arrival frequency at Chittagong Port. (iii) To identify the key factors influencing stakeholder acceptance or resistance towards financial incentives in the TAS.

By employing …

Evaluating The Efficacy Of Shipping Pools : An Empirical Analysis Of Tanker And Dry Bulk Segments, Ashraf Mahmud

World Maritime University Dissertations

No abstract provided.

New York City Lacks The Resources To Keep Cyclists Happy (Or Safe) But Help Is On The Way, Richard Heaton

Capstones

Across New York City, the disparity in bike resources has been on the rise, leaving many New Yorkers without access to dedicated bike lanes or other resources. This is especially prevalent in the outer boroughs, but thankfully there are organizations that look to remedy this in the future.

https://richard-heaton.medium.com/new-york-city-lacks-the-resources-to-keep-cyclists-happy-or-safe-but-help-is-on-the-way-15235462f199

Webinar: Individual Wayfinding In The Context Of Visual Impairment, Blindness, And Deafblindness, Amy Parker, Martin Swobodzinski

TREC Webinar Series

In this presentation we will highlight our past research on human indoor-outdoor wayfinding on an urban college campus. Our work is aimed at facilitating independent travel for people with blindness and low vision. Our research was funded by two successive grants from the National Institute for Transportation and Communities/US Department of Transportation. One of the central research questions sought to capture wayfinding preferences, information needs, and lived experiences of blind and low-vision pedestrian travelers. The projects afforded close collaboration with external partners, and foremost the American Printing House for the Blind. Our focus in the presentation will be on the …

Traffic Deaths In Southern Nevada: Making Roadways Safer For Nevadans, Miguel A. Soriano Ralston

Undergraduate Research Symposium Podium Presentations

Southern Nevada accounts for the majority of traffic deaths in Nevada. It remains one of the highest-ranked areas in pedestrial deaths. The leading types of these fatalities are impared driving, pedestrians, and speeding-related.

The Next Wave Of Abolishing Parking Mandates, Catie Gould, Jeannette Lee

PSU Transportation Seminars

The movement to eliminate parking mandates is having a big moment. This summer, both Oregon and California took statewide action to roll back minimum off-street parking requirements, relegalizing homes and businesses regardless of how many parking spots they have. We’ll take a look at why parking reform is so important, what to expect next in Oregon, and lessons from cities who have already gone all the way to delete this regulation from their zoning code.

Applying A Mt. Mazama Volcanic Ash Treatment As A Trail Accessibility Improvement, Charles Riley, Ashton Greer, Matthew D. Sleep

TREC Final Reports

A procedure has been developed for implementing a topically applied Mt. Mazama volcanic ash trail surface amendment for improving trail firmness and stability. This project involved implementation of previously conducted Mt. Mazama volcanic research by applying a Mazama Ash and Portland Cement solution over a 0.2-mile section of the Geo Trail at the Oregon Institute of Technology Klamath Falls campus. Testing was performed to verify ideal Ash-to-Cement-to-Water ratios. A procedure was developed and applied for batching and mixing the dry materials on-site, spreading and integrating the dry material with the existing trail surface, and wetting and compacting the surface. After …

Enabling Decision-Making In Battery Electric Bus Deployment Through Interactive Visualization, Xiaoyue Cathy Liu, Gabrielius Kudirka, Biao Kuang, Yirong Zhou, Jianlin Chen

TREC Final Reports

The transit industry is rapidly transitioning to battery-electric fleets because of the direct environmental and financial benefits they could offer, such as zero emissions, less noise, and lower maintenance costs. Yet the unique spatiotemporal characteristics associated with transit system charging requirements, as well as various objectives when prioritizing the fleet electrification, requires the system operators and/or decision-makers to fully understand the status of the transit system and energy/power system in order to make informed deployment decisions. A recently completed NITC project, No. 1222 titled An Electric Bus Deployment Framework for Improved Air Quality and Transit Operational Efficiency, developed a bi-objective …

Best Practices In Disaster Public Communications: Evacuation Alerting And Social Media, Frannie Edwards, Kaikai Liu, Amanda Lee Hughes, Jerry Zeyo Gao, Dan Goodrich, Alan Barner, Robert Herrera

Mineta Transportation Institute

This research project examines the current state of the practice for disaster public communication, the distrust of government, the training available to public information officers, and the literature available to guide the design of effective public outreach messaging, especially for rapid on-set events. Growing distrust in government had led to lack of public confidence in public agency messaging during emergencies, yet public agency public information officers are using multiple pathways, including both traditional and social media resources, to try to reach impacted communities effectively. The introduction explains the development of wildfire events in the West and their context. A literature …

Transportation Asset Management For The Electric Road System, Kamalen Maria Santos Diaz

Open Access Theses & Dissertations

Electric road systems (ERS) have been presented as a new solution towards a sustainable transportation future, fueling the widespread adoption of electric vehicles by eliminating range anxiety, reducing battery size, and being regional friendly. These systems consist of four components: electric power supply, roads, vehicles, and operations. Much of the early research conducted on ERS has been on how to initially construct these systems by focusing on the first three components, however, there is limited knowledge on how ERS will impact traditional road operations after the systems are in place. Transportation Asset Management (TAM), a major focus within the transportation …

Development And Application Of A Safety Index For Transit Stops: A Case Study From Las Vegas, Nevada, Rithesh Shivuni

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research developed a methodology to evaluate safety proximate to transit stops through a Safety Index, identified key factors associated with fatal crashes proximate to bus transit stops, and illustrated the applications of these using a case study based on the Las Vegas metropolitan area in Nevada, USA. The methodology is based on motor vehicle crashes that involve pedestrians recorded in the proximity of transit stops, and the severity of the crash outcomes. It focused on crashes which involved pedestrians that occurred within walking distances of individual transit stops. The severity of the crash outcomes was classified based on the …

Resurfacing A Trail In Oregon Using Volcanic Ash, Charles Riley, Ashton Greer

TREC Project Briefs

In the latest instance of taking research to practice, researchers at Oregon Tech have completed a pilot section of trail using a NITC-developed sustainable paving method. A quarter-mile section of the Klamath Geo Trail, just east and up the hill from the Oregon Tech Klamath Falls campus, has been successfully resurfaced using volcanic ash from Mount Mazama.

The Central Valley Transportation Challenge, Christian Wandeler, Steve Hart

Mineta Transportation Institute

The Central Valley Transportation Challenge provides underserved minority students, who are primarily from rural areas, with high quality transportation-related educational experiences so that they learn about transportation-related topics and opportunities in transportation careers. The CVTC is a project-based learning program that brings university faculty and students to K–12 classrooms in rural areas. The project operated with three main objectives: (1) support K–12 teachers’ understanding and implementation of the CVTC programs; (2) connect K–12 students with university faculty and students, and transportation professionals through the CVTC program; and (3) develop an online hub with transportation-related lesson plans and sequences. The results …

Moving From Probabilistic To Time-Based On-Time Performance (For Practitioners), Miles James Allen Crumley

PSU Transportation Seminars

On-Time Performance (OTP) is a probabilistic measure that tells the customer the likelihood that the trip they are about to take will arrive "on-time." However, this metric forces the customer to think in terms of a probability of trip timeliness and not an actual time value for how timely the trip will be. This presentation will explore a new way to examine on-time performance by quantifying the timeliness of trips. Customers can then use this information to determine which trip would be the best to take based on when they need to arrive at their destination. Using a system science …

Using Gis To Identify Barriers To Access On The Rtd W Line In Denver, Colorado, Tristan Johnson

Geography and the Environment: Graduate Student Capstones

Denver, Colorado has a long history of public transportation usage beginning with horse-drawn streetcars in 1871. As the automobile began to flourish however, the use of public transportation has languished. In 2013, the W light rail line opened serving the West Denver area. As Denver has moved toward a more transit-oriented growth model, this rail line can create a more vibrant future. Using GIS, a better understanding of the barriers to access for light rail travel is obtained and considering key variables outputs are created to assist policy makers in utilizing the W line. By using GIS to address population …

Transit Equity: Trends In Commuting Among The Employed Population In New York City, 1990-2019, Beiyi Hu

Center for Latin American, Caribbean, and Latino Studies

Introduction:

This report examines key trends in commuting among the employed population in New York City between 1990 and 2019.

Methods:

This report uses the American Community Survey PUMS (Public Use Microdata Series) data for all years released by the Census Bureau and reorganized for public use by the Minnesota Population Center, University of Minnesota, IPUMSusa, (https://usa.ipums.org/usa/index.shtml). See Public Use Microdata Series Steven Ruggles, J. Trent Alexander, Katie Genadek, Ronald Goeken, Matthew B. Schroeder, and Matthew Sobek. Integrated Public Use Microdata Series: Version 5.0 [Machine-readable database]. Minneapolis: University of Minnesota, 2021.

Discussion:

Between 1990 and 2019, most of the employed …

Commuting Times To Work In The United States, 1990 - 2018, Sebastián Villamizar-Santamaría

Center for Latin American, Caribbean, and Latino Studies

Introduction:

This report documents the evolution of commuting times in the United States between 1990 and 2018, focusing on disparities with respect to race and ethnicity, sex, marital status, income, and poverty status

Methods:

This report uses the American Community Survey PUMS (Public Use Microdata Series) data for all years released by the Census Bureau and reorganized for public use by the Minnesota Population Center, University of Minnesota, IPUMSusa, (https://usa.ipums.org/usa/index.shtml). See Public Use Microdata Series Steven Ruggles, J. Trent Alexander, Katie Genadek, Ronald Goeken, Matthew B. Schroeder, and Matthew Sobek. Integrated Public Use Microdata Series: Version 5.0 [Machine-readable database]. Minneapolis: …

Means Of Transportation To Work In The United States, 1990-2018, Sebastián Villamizar-Santamaría

Center for Latin American, Caribbean, and Latino Studies

Introduction:

This report examines how people commuted to work in the United States between 1990 and 2018, focusing on disparities with respect to race and ethnicity, sex, marital status, income, and poverty status

Methods:

This report uses the American Community Survey PUMS (Public Use Microdata Series) data for all years released by the Census Bureau and reorganized for public use by the Minnesota Population Center, University of Minnesota, IPUMSusa, (https://usa.ipums.org/usa/index.shtml). See Public Use Microdata Series Steven Ruggles, J. Trent Alexander, Katie Genadek, Ronald Goeken, Matthew B. Schroeder, and Matthew Sobek. Integrated Public Use Microdata Series: Version 5.0 [Machine-readable database]. Minneapolis: …

System-Level Risk Management Of Transportation Structures And Networks, David Y. Yang

PSU Transportation Seminars

Conventional risk assessment approaches in infrastructure management do not fully capture the system-level impact of structural failure or service disruption. As a result, the priorities of preservation projects may be misidentified, leading to suboptimal maintenance schedules and waste of resources. In this presentation, we will first illustrate why conventional risk assessment is not suitable for transportation structures and networks due to interdependency between assets, and then demonstrate how system-level preservation policies can be devised using novel algorithms adapted from the field of deep reinforcement learning. Results from a series of case studies showcase that the system-level risk management is essential …

Pedestrian Wayfinding Under Consideration Of Visual Impairment, Blindness, And Deafblindness: A Mixed-Method Investigation Into Individual Experiences And Supporting Elements, Martin Swobodzinski, Amy T. Parker, Elizabeth Schaller, Denise Snow

TREC Final Reports

In this report we discuss to-date findings of a project that aimed at assessing individual and environmental affordances in the context of human pedestrian wayfinding of visually impaired, blind, and deafblind travelers in public spaces. Our project afforded collaboration, co-design, and co-creation of knowledge between the investigators, partners at the American Printing House of the Blind and GoodMaps, the Portland State University Digital City Testbed Center, and members of the disability community. The objective of the project was to better understand how different wayfinding aids, that is, wayfinding apps, tactile maps, and verbal route descriptions, are employed by visually impaired, …

More Roads Or Public Transit? Insights From Measuring City-Center Accessibility, Lucas Conwell, Fabian Eckert, Ahmed Mushfiq Mobarak

Discussion Papers

We propose a theory-inspired measure of the accessibility of a city’s center: the size of the surrounding area from which it can be reached within a specific time. Using publicly-available optimal routing software, we compute these ”accessibility zones” for the 109 largest American and European cities, separately for cars and public transit commutes. Compared to European cities, US cities are half as accessible via public transit and twice as accessible via cars. Car accessibility zones are always larger than public transit zones, making US cities more accessible overall. However, US cities’ car orientation comes at the cost of less green …

Fragmented Or Aligned Climate Action: Assessing Linkages Between Regional And Local Planning Efforts To Meet Transportation Greenhouse Gas Emissions Reduction Targets, Serena E. Alexander, Ahoura Zandiatashbar, Branka Tatarevic

Mineta Transportation Institute

Amid the rising climate change concerns, California enacted Senate Bill 375 (SB 375) to tackle transportation greenhouse gas (GHG) emissions. SB 375 requires Metropolitan Planning Organizations (MPOs) to develop a Sustainable Communities Strategy (SCS), a regional transportation and land use vision plan, to reduce GHG emissions. Meanwhile, a local government can develop a Climate Action Plan (CAP), a non-binding, voluntary plan to reduce GHG emissions that may align with the regional SCS. Recent progress reports indicate California is not making sufficient progress to meet SB 375 emissions reduction targets, which raises important questions: (1) Are the transportation and land use …

Effect Of Weather Events On Travel Time Reliability And Crash Occurrence, Sonu Mathew, Srinivas S. Pulugurtha

Mineta Transportation Institute

The magnitude of the effect of adverse weather conditions on road operational performance varies with the type of weather condition and the road characteristics of the road links and adjacent links. Therefore, the relationship between weather and traffic is always a concern to traffic engineers and planners, and they have extensively explored ways to integrate weather information into transportation systems. Understanding the influence of weather on operational performance and safety helps traffic engineers and planners to proactively plan and manage transportation systems. The main objective of this research is to evaluate the effect of adverse weather conditions on travel time …

Exploring The Use Of Public Transportation Among Older Adults During The Covid-19 Pandemic: A National Survey, Keertana Sureshbabu, Egbe-Etu Etu, Susan Summerville, Ankur Parmar, Gaojian Huang

Mineta Transportation Institute

Public transportation is an essential part of many older adults’ lives, but the pandemic presented new challenges for the vulnerable population. Adults aged 65 years and older experienced additional challenges, such as limited mobility options (e.g., lack of buses or trains in service due a combination of government lockdowns, fear of contracting or spreading the virus, and driver shortages in certain areas) because of the pandemic, which may have resulted in more age-related declines in perceptual, cognitive, and physical functioning. This study explores how older adults living in major metropolitan cities in the United States used and perceived public transportation …

Spatio-Temporal Analysis Of Roadside Transportation-Related Air Quality (Startraq 2021): A Characterization Of Bike Trails And Highways In The Fresno/Clovis Area, Jaymin Kwon, Yushin Ahn, Steve Chung

Mineta Transportation Institute

The San Joaquin Valley is identified as an area with a high level of particulate matter (PM) in the air, reaching above the federal and state clean air standards (EPA 2019). Many of the cities in the valley are classified as the most polluted cities in the United States for both particulate matter and ozone pollution (American Lung Association, 2021). To resolve this issue, alternative forms of transportation have been considered in transportation planning. In this study, active transportation mode air quality was monitored on selected Woodward Park and Old Clovis trails and urban bike lanes. Real-time aerosol monitors, and …

Does Transit Service Reliability Influence Ridership?, Srinivas S. Pulugurtha, Raunak Mishra, Sravya L. Jayanthi

Mineta Transportation Institute

This research focused on analyzing the association between transit service reliability indicators and ridership. Further, the effect of road network, demographic, socioeconomic, and land use characteristics on transit service reliability was analyzed. The analysis was conducted at a bus stop level. Bus arrival/departure and ridership data from the Charlotte Area Transit System (CATS) was obtained. The road network, demographic, socioeconomic, and land use characteristics were captured within 0.25-mile and 0.50-mile buffers. Pearson correlation analysis was conducted to understand the association between road network, demographic, socioeconomic, and land use characteristics and bus transit service reliability measures. The results show that bus …

Understanding The Role Of Transportation In Human Trafficking In California, Kezban Yagci Sokat

Mineta Transportation Institute

Human trafficking, a form of modern slavery, is the recruitment, transport, and/or transfer of persons using force, fraud, or coercion to exploit them for acts of labor or sex. According to the International Labor Organization, human trafficking is the fastest growing organized crime with approximately $150 billion in annual profits and 40.3 million individuals trapped in slave-like conditions. While it is not compulsory to involve transportation for human trafficking, the transportation industry plays a critical role in combating human trafficking as traffickers often rely on the transportation system to recruit, move, or transfer victims. This multi-method study investigates the role …

Ai-Based Pedestrian Detection And Avoidance At Night Using An Ir Camera, Radar, And A Video Camera, Hovannes Kulhandjian

Mineta Transportation Institute

In 2019, the United States experienced more than 6,500 pedestrian fatalities involving motor vehicles which resulted in a 67% rise in nighttime pedestrian fatalities and only a 10% rise in daytime pedestrian fatalities. In an effort to reduce fatalities, this research developed a pedestrian detection and alert system through the application of a visual camera, infrared camera, and radar sensors combined with machine learning. The research team designed the system concept to achieve a high level of accuracy in pedestrian detection and avoidance during both the day and at night to avoid potentially fatal accidents involving pedestrians crossing a street. …

The Human Element In The Era Of Digitalization And Automation Of Ports : A Case Study Of South Africa, Lucky Njabulo Sithole

World Maritime University Dissertations

No abstract provided.