Social and Behavioral Sciences Commons^™

Essays On Urban Transportation And Health Economics, Alexander P. Tsiukes

Graduate Theses, Dissertations, and Problem Reports

The first chapter analyzes how Premier League games in London impact demand for the city’s bike-sharing system. Bike-sharing systems affect mode choice for within-city transportation. Using bike rental data from Transport for London, this chapter exploits the plausibly-exogenous timing of Premier League games to identify how proximity to stadiums affects demand for London’s bike-sharing system. Results indicate games at Stamford Bridge (stadium) cause a 24.36% increase in the number of bike trips arriving within 0.5km of the stadium, with effects diminishing as distance increases. In contrast, games at London Stadium decrease nearby bike-sharing use and may actually crowd out would-be …

Segac: Sample Efficient Generalized Actor Critic For The Stochastic On-Time Arrival Problem, Honglian Guo, Zhi He, Wenda Sheng, Zhiguang Cao, Yingjie Zhou, Weinan Gao

Research Collection School Of Computing and Information Systems

This paper studies the problem in transportation networks and introduces a novel reinforcement learning-based algorithm, namely. Different from almost all canonical sota solutions, which are usually computationally expensive and lack generalizability to unforeseen destination nodes, segac offers the following appealing characteristics. segac updates the ego vehicle’s navigation policy in a sample efficient manner, reduces the variance of both value network and policy network during training, and is automatically adaptive to new destinations. Furthermore, the pre-trained segac policy network enables its real-time decision-making ability within seconds, outperforming state-of-the-art sota algorithms in simulations across various transportation networks. We also successfully deploy segac …

The Rise Of Multi-Homing In Asia's Ride-Hailing Industry, Hai Wang

Asian Management Insights

Getting it right secures environmental and economic wins for the present and future.

A Gridded Co2 Emissions Inventory For Portland, Or, James Eckhardt Powell

Dissertations and Theses

Here we develop a new high resolution inventory of CO₂ emissions for the three Oregon counties which comprise the bulk of the City of Portland, Oregon, USA. Locally curated and long-running data collection efforts for on-road traffic activity and emission rates are used to model on-road emissions, and a new survey of the area's natural gas network informs the building energy model. The inventory estimates total emissions of CO₂ for each hour of the year 2018 in the on-road, residential, and commercial building sectors at 1 km² resolution. The onroad inventory compares to within 3% with an …

Sex In The Cities: A Comparative Analysis Of Vienna And The United States’ Efforts In Gender Mainstreaming Transportation, Sarah Miller

Student Research Submissions

The paper focuses on the differences in transportation systems between the United States and Vienna, Austria. Research shows that women have been an overlooked group of people within cities. Due to this, cities have not been designed for them and an example of this is transportation. Some cities like Vienna, Austria have made it their mission to create gender-equitable cities. To better understand this problem women were interviewed who had experience in the Viennese and American systems to analyze the differences. Also, certain government agencies were contacted to understand this problem from a governance standpoint. All of the interviews supported …

Grabbing The Paycheck: A Glimpse Into The Modern Economic Livelihoods Of Xe Máy Grab Drivers In Ho Chi Minh City, Vietnam, Maddie Davis

Independent Study Project (ISP) Collection

Woven into the very fabric of urban life in Ho Chi Minh City Vietnam is commuting via motorcycle (Vietnamese: xe máy). The versatility of xe máy can be witnessed in the surge of rush hour traffic, the shipment of a great variety and quantity of goods, and the crunch of people in order to get the whole family atop a single bike. Due to xe máy as the primary way much of the population gets around, Ho Chi Minh City’s transportation infrastructure and traffic patterns are highly conducive to this method of transit. Resulting from these favorable conditions, a multitude …

Attention-Based Data Analytic Models For Traffic Flow Predictions, Kaushal Kumar, Yupeng Wei

Mineta Transportation Institute

Traffic congestion causes Americans to lose millions of hours and dollars each year. In fact, 1.9 billion gallons of fuel are wasted each year due to traffic congestion, and each hour stuck in traffic costs about $21 in wasted time and fuel. The traffic congestion can be caused by various factors, such as bottlenecks, traffic incidents, bad weather, work zones, poor traffic signal timing, and special events. One key step to addressing traffic congestion and identifying its root cause is an accurate prediction of traffic flow. Accurate traffic flow prediction is also important for the successful deployment of smart transportation …

Lewisburg Bikeability Report 2022, Morgan Powell, Shaunna Barnhart, Taylor Lightman

Student Project Reports

No abstract provided.

Transport 2040 : Impact Of Technology On Seafarers - The Future Of Work, World Maritime University

Reports

No abstract provided.

Public Opinion Concerning The Siting Of Vertiports, David C. Ison

International Journal of Aviation, Aeronautics, and Aerospace

This study sought a better understanding of public opinion about the siting of vertiports to support Advanced Air Mobility (AAM). An online survey was used to collect the necessary data. The survey was divided into seven sections: personal impacts, community impacts, acceptable proximity, benefits and concerns, flight operations, open-ended comments, and demographics. The findings for personal impacts suggested a slightly positive outlook. Community impacts were assessed, and data also indicated a marginally positive outlook. The survey revealed that a tolerable average distance between the home of the respondent and a vertiport was between one to two miles. Opinions about the …

Incorporating Public Health Into Transportation Decision Making, Bruce Appleyard, Tim Garrett

Mineta Transportation Institute

Investments in transportation have the potential to significantly affect public health outcomes. Decisions to build highways, transit, or bikeways, for example, influence how residents and visitors move around a metropolitan area. Personal travel habits and proximity to transportation infrastructure play a role in how likely people are to be physically active or be exposed to dangerous traffic and toxic pollution. For this study, the research team reviewed the literature that links transportation infrastructure, the surrounding built environment context, and public health outcomes such as chronic heart and lung diseases, obesity, and death. The team then researched publicly available data that …

Air Cargo: Carriers, Cost, And Competition, Zoe Laulederkind

Theses and Dissertations

This dissertation examines the cost structure of U.S. air carriers participating in the freight transport sector. From 1991 to 2021, events such as the 9/11 terrorist attacks, the global financial crisis, and the COVID-19 pandemic have coincided with various events directly impacting the air freight transport industry. During this 30-year period, air transport has developed and implemented global tracking systems, engaged in labor negotiations, and weathered supply-chain shocks all of which warrant comprehensive evaluation of the U.S. air freight transport industry from the cost perspective. Chapter 1 of this thesis explores existence of natural monopoly and economies of scope among …

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 …

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 F. 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 F. 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: …

The Commuting Patterns Of Older Adults, Yen Cong Wong, Yan Er Tan, Grace Cheong

ROSA Research Briefs

This research brief uses data from the Singapore Life Panel (SLP) and provides a general description of the commuting patterns of older adults in November 2021. By outlining the latter, we aim to provide some indication of whether Singapore’s transport infrastructure adequately supports the commute needs of older adults and how older adults’ commute fares against the Land Transport Authority (LTA) of Singapore’s Land Transport Master Plan (LTMP). Key findings: 1. Self-owned car (32.8%) was the most preferred mode of transport, followed by the public bus (25.3%), MRT (24.4%) and walking (8.3%). 2. In terms of utilization, public bus (50.3%), …

The True Cost Of Auto Insurance In The Mountain West, 2022, Annie Vong, Saha Salahi, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet examines data on average annual premiums, percent of income spent on auto insurance, and life events associated with the rising cost of auto insurance in the Mountain West (Arizona, Colorado, Nevada, New Mexico, and Utah). The original report includes data on national averages for auto insurance premiums for all fifty states.

Multi-Agent Reinforcement Learning For Traffic Signal Control Through Universal Communication Method, Qize Jiang, Minhao Qin, Shengmin Shi, Weiwei Sun Sun, Baihua Zheng

Research Collection School Of Computing and Information Systems

How to coordinate the communication among intersections effectively in real complex traffic scenarios with multi-intersection is challenging. Existing approaches only enable the communication in a heuristic manner without considering the content/importance of information to be shared. In this paper, we propose a universal communication form UniComm between intersections. UniComm embeds massive observations collected at one agent into crucial predictions of their impact on its neighbors, which improves the communication efficiency and is universal across existing methods. We also propose a concise network UniLight to make full use of communications enabled by UniComm. Experimental results on real datasets demonstrate that UniComm …

Blockchain And Distributed Autonomous Community Ecosystems: Opportunities To Democratize Finance And Delivery Of Transport, Housing, Urban Greening And Community Infrastructure, William Riggs, Vipul Vyas, Menka Sethi

Mineta Transportation Institute

This report investigates and develops specifications for using blockchain and distributed organizations to enable decentralized delivery and finance of urban infrastructure. The project explores use cases, including: providing urban greening, street or transit infrastructure; services for street beautification, cleaning and weed or graffiti abatement; potential ways of resource allocation ADU; permitting and land allocation; and homeless housing. It establishes a general process flow for this blockchain architecture, which involves: 1) the creation of blocks (transactions); 2) sending these blocks to nodes (users) on the network for an action (mining) and then validation that that action has taken place; and 3) …

Transportation Utility Fee To Fund Transit In California, Shishir Mathur, Ralph Robinson

Mineta Transportation Institute

Public transit is a key tool to reduce greenhouse gas (GHG) emissions to combat climate change; improve safety for pedestrians, cyclists, and drivers; and expand accessibility and mobility for all. However, we can only realize this potential by making sufficient investments to provide transit service levels that attract and retain greater ridership. To help with this needed investment, a handful of local governments have turned to transportation utility fees (TUFs), primarily collected as a monthly charge on customers' utility bills or property tax bills. While more widely used to support street maintenance, this study identifies six case studies where TUF …

Our Streets: Increasing Equity In Active Transportation Planning Through Community Outreach, Jordan Hoy

Master's Projects and Capstones

ABSTRACT Significant research has demonstrated that active transportation infrastructure is essential for the growth and livability of San Francisco: it increases access to economic opportunities, promotes overall improved public health, encourages mobility without contributing to roadway congestion, prevents traffic injuries and fatalities, and supports the sustainability goals of the city. Despite the fact that communities of color will benefit the most from active transportation infrastructure development, historical disenfranchisement in tandem with a lack of diverse representation within public participation contributes to an inequitable distribution of walking and biking investments throughout the city of San Francisco. While research shows that Black …

An Assessment Of The Transit System Connecting Low-Income Households To The International Airport: A Case Study Of Southwest Alief, Texas, Abayomi Mololuwa Bakare

Theses (2016-Present)

Public transportation is part of the economic and social fabric of metropolitan areas, especially to low-income individuals who are often totally dependent on these services for their daily activities. In Houston Texas, this is made possible through the region's system of highway transit centers and other transportation options such as MetroBus and MetroRail. The role that transits plays in the connection between residential locations and employment opportunities is crucial in creating and implementing programs that will improve and maintain transit and ownership options available to vulnerable segments of Metropolitan residents. This study proposes the use of qualitative research methodology to …

Electric Vehicle (Ev) Infrastructure In The Mountain West, 2020-2021, Olivia K. Cheche, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet highlights data on electric vehicles (EVs) and EV charging stations, as originally reported by Zutobi in The 2022 EV Charging Station Report. This report examines the presence of EV infrastructure across the United States. The Mountain West states of Arizona, Colorado, Nevada, New Mexico, and Utah are considered here.

Rethink Your Commute: Good For The Planet & You, Courtney Reynolds

Sustainability Conference

Transportation choices have a big impact on the environment, as well as individual health and wellness. Many times, people may feel like they don't have any other choice than to drive to get to school, work, and other places. But exploring other options can lead to more sustainable choices and save individuals a lot of money.

At reThink Your Commute, we help people make informed decisions on how, when, and where they travel. We do this by promoting sustainable choices, connecting people to local resources, and supporting equitable access to transportation options. This 10-minute presentation will provide an overview of …

The Rise Of Southern Nevada As A Cluster For Metropolitan Transit Technology Innovations, Arthur C. Nelson

Policy Briefs and Reports

Southern Nevada is emerging as the nation’s leader in private sector-driven innovations in transportation technologies. From the humble beginnings of a monorail system serving a portion of major hotel and gaming venues along the Las Vegas Strip, now supplemented by an array of people movers, Southern Nevada continues to attract transit innovations in tunneling, Hyperloop, and driverless vehicle delivery technologies. The region may soon anchor a high-speed rail system connecting Southern Nevada to Los Angeles. The purpose of this briefing paper is to frame the nature of this emerging transportation cluster and the opportunities this creates for Southern Nevada to …

Ccrpc Bicycle Count Data Analysis And Count Program Design Strategies, Gregory Rowangould, Eliana Fox, Rose O'Brien, Julia Clarke

University of Vermont Transportation Research Center

In 2017, the Chittenden County Regional Planning Commission (CCRPC) completed the most recent update of the region’s Active Transportation Plan (ATP) with the goal of creating “a safe, comfortable, and connected regional network of pedestrian and bicycle routes that appeal to all ages and abilities”. Developing a “robust” bicycle count program was one of the key non-infrastructure recommendations in the ATP (CCRPC, 2017). The UVM Transportation Research Center (“TRC”) was contracted to evaluate current bicycle data collection efforts in the region, identify gaps and limitations and make recommendations on how to develop a comprehensive bicycle count program that could better …

Which Transportation Technologies Do We Want?, Michael Lewyn

Scholarly Works

A review of Todd Litman's book, New Mobilities- Smart Planning for Emerging Transportation Technologies

Strategies To Reduce Flight Attendant Voluntary Turnover, Jorge Tobar

Walden Dissertations and Doctoral Studies

Flight attendant voluntary turnover can lead to staffing shortages that can cause severe disruptions to flight schedules, damage the airlines’ reputations, and negatively affect revenues, which are significant challenges for airline leaders. Grounded in Herzberg’s two-factor theory, the purpose of this qualitative multiple-case study was to explore strategies airline leaders use to reduce flight attendant voluntary turnover. Data were collected from four leaders from four U.S. airlines in the southwestern United States using semistructured interviews and reviews of organizational documents. Five themes emerged from thematic analysis: improving compensation and benefits packages, implementing rewards and recognition programs, increasing supervisory support, expanding …

Public Transportation In Central Florida: Setting The Tone For Public Rail Use, Zoe Johnson

Honors Undergraduate Theses

The purpose of this research is to analyze the use of the public train usage in Central Florida to determine the feasibility of high-speed rail usage in the future. This study will be split into parts and expanded upon. The first part will observe rider perspective, values, and issues regarding rail transportation as is available in Central Florida. In further installations, which will be conducted separately from this thesis, there will be an analysis of the providers of rail transportation. It is hypothesized that there will be a moderate demand for rail transportation used by the public.

Original: The main …