Transportation Commons^™

Preparing Cities For An Automated Future, Benjamin Y. Clark

TREC Project Briefs

This report is an examination of parking, curb zones, and government service changes in the context of AVs. Given that there are very few actual AVs on the road, the analysis in this report is an attempt to project what we might see, using the current phenomenon as starting points. The report uses a mix of econometric modeling, cost accounting, and case studies to illustrate these projections. The first section of this report looks at the effects of transportation network companies (TNCs)—Uber and Lyft in particular—on parking revenue in the city of Seattle. The results of the study indicate that …

Modeling Driver-Pedestrian-Infrastructure Interactions At Signalized Midblock Crosswalks, Boniphace Kutela

UNLV Theses, Dissertations, Professional Papers, and Capstones

Cities and metropolitan areas are increasingly facilitating pedestrians’ movement by the provision of pedestrian walking facilities. As pedestrian traffic increases, the risk of crash involvement increases, especially at midblock locations, where pedestrians are exposed to unsafe interactions with vehicular traffic. To improve pedestrians’ safety at midblock locations, various countermeasures are provided, which include signalized crosswalks. Several studies have analyzed driver-pedestrian interactions, as well as pedestrian-infrastructure interactions at signalized midblock crosswalks. However, more in-depth studies are necessary, due to shortfalls of study assumptions, which have led to the application of improper statistical models, as seen in the literature. Improved models are …

Older Adults’ Perceptions Regarding Transportation Services In San Jose, Ca: Access, Barriers, And Innovations, Deborah Bolding

Mineta Transportation Institute

The purpose of this study was to examine the perceptions of older adults concerning barriers to the use of public transportation, to identify programs and services that best meet transportation needs, and to obtain suggestions for improvements or innovations in order to enable them to engage more fully in their community. Four focus groups, with a total of 25 participants, were held in three locations in San Jose, CA. While the participants were able to use public transportation to access shopping, medical services and other destinations, they expressed concerns related to physical barriers, frequency of services, the behavior of some …

Re-Org: An Online Repositioning Guidance Agent, Muralidhar Konda, Pradeep Varakantham, Aayush Saxena, Meghna Lowalekar

Research Collection School Of Computing and Information Systems

No abstract provided.

“Paying” The Way For A Better Bart Future: A Call For Better Enforcement Of Fare Evasion Policies And Strategic Planning At Bart, Ethan S. Tan

Creative Activity and Research Day - CARD

The Bay Area Rapid Transit (BART) system has undoubtedly shaped the way the San Francisco Bay Area operates today. BART has molded itself to becoming a popular form of transportation for citizens of the area. However, numerous problems have arisen in recent years in regard to the overall “healthiness” of the BART system with its ex-aging fleet of trains, undertrained staff, lack of BART Police presence, rampant illegal drug use, etc. which has made BART unpopular with riders. The root cause of these problems through, is the lost revenue through “stolen” rides. At any one of BART’s 48 stations in …

Low-Income Access To Employer-Based Transit Benefits: Evidence From 10 Large Metropolitan Regions, Andrea Hamre

Journal of Transportation Demand Management Research

While national aggregate statistics suggest employer-based transit subsidies may be inaccessible to the majority of the working poor, this is the first study to investigate the subject with disaggregate data while controlling for additional factors. This study uses household travel surveys for 10 of the largest Metropolitan Planning Organizations, grouped into seven cases. In each case, the share of workers offered an employer-based transit subsidy is lowest for workers in the lowest income quintile. Binary logistic regression results for the odds of being offered an employer-based transit subsidy are presented for two cases, Washington, DC, and Denver, CO, and the …

Tls Newsletter, Spring 2019, Unf Transportation And Logistics Society

Transportation & Logistics Society Newsletter

Inside the Newsletter: Upcoming Events. Lend a Wing Pantry. Message from the President. TLS Photo Contest

Active Transportation And Health Effects Of Safe Routes To Schools (Sr2s) Projects And Planning, Christopher E. Ferrell

Mineta Transportation Institute

On July 29, 2005 Congress passed the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU), the federal government’s transportation bill, in part, designating $612 million over five years to go to a relatively new funding program: Safe Routes to School (SR2S). The legislation mandated that state departments of transportation (DOTs) receive annual funding in an amount proportional to the number of primary and middle school grade children enrolled in their states. State DOTs could then grant that money to state, local, and regional agencies, as well as non-profit organizations to fund SR2S programs.

Improving public health …

Urban Goods Movement And Local Climate Action Plans: Assessing Strategies To Reduce Greenhouse Gas Emissions From Urban Freight Transportation, Andrew R. Goetz, Serena Alexander

Mineta Transportation Institute

This report examines how freight transport/goods movement has been addressed in U.S. city climate action planning. Transportation generally is a major contributor of greenhouse gas (GHG) emissions, and freight transport represents a growing component of transportation’s share. Almost all climate action plans (CAPs) address transportation generally, but we wished to focus on efforts to reduce GHG emissions from freight transport specifically. We analyzed 27 advanced local CAPs to determine the degree to which freight transport was targeted in goals and strategies to reduce GHG emissions. We found only six CAPs that included direct measures or programs to reduce freight emissions. …

Walk N’ Roll (Wnr) San Jose: An Initiative To Promote Active Transportation And Safe Routes To School For Children In San Jose, California, François Xavier Hans Voltaire

Master's Projects

How effective is the Walk n’ Roll (WnR) program in promoting active transportation near school zones in San Jose, California? The intent of this research question is to discern the effect of the City of San Jose’s WnR program in encouraging children to actively travel to school (walking/cycling) and using other means such as scooters and skateboards. This research will use data from 2012-2018 to measure the efficacy of the program. This project strives to discover whether the tools and strategies that the program is using impact the augmentation level of the number of students who actively travel and transport …

Route Planning For A Fleet Of Electric Vehicles With Waiting Times At Charging Stations, Baoxiang Li, Shashi Shekhar Jha, Hoong Chuin Lau

Research Collection School Of Computing and Information Systems

Electric Vehicles (EVs) are the next wave of technology in the transportation industry. EVs are increasingly becoming common for personal transport and pushing the boundaries to become the mainstream mode of transportation. Use of such EVs in logistic fleets for delivering customer goods is not far from becoming reality. However, managing such fleet of EVs bring new challenges in terms of battery capacities and charging infrastructure for efficient route planning. Researchers have addressed such issues considering different aspects of the EVs such as linear battery charging/discharging rate, fixed travel times, etc. In this paper, we address the issue of waiting …

Traffic Signal Consensus Control, Gerardo Lafferriere

TREC Final Reports

We introduce a model for traffic signal management based on network consensus control principles. The underlying principle in a consensus approach is that traffic signal cycles are adjusted in a distributed way so as to achieve desirable ratios of queue lengths throughout the street network. This approach tends to reduce traffic congestion due to queue saturation at any particular city block and it appears less susceptible to congestion due to unexpected traffic loads on the street grid. We developed simulation tools based on the MATLAB computing environment to analyze the use of the mathematical consensus approach to manage the signal …

A Decentralized Network Consensus Control Approach For Urban Traffic Signal Optimization, Gerardo Lafferriere

TREC Project Briefs

Automobile traffic congestion in urban areas is a worsening problem that comes with significant economic and social costs. This report offers a new approach to urban congestion management through traffic signal control.

Addressing Changing Demographics In Environmental Justice Analysis, Aaron Golub

TREC Project Briefs

Since 1994, every Federal agency has a mandate to develop a strategy for identifying and addressing disproportionately high and adverse human health or environmental effects on low income populations and minority populations. In transportation planning this means including those communities’ voices in the planning process, and evaluating the social impacts early on.

A new report from the Federal Highway Administration (FHWA), prepared by Portland State University and ICF International, provides an in-depth analysis of national demographic trends and a synthesis of best long-range planning practices borne out of five case studies

Improving Transportation Access Through Interdisciplinary Collaboration, Noelle Fields, Courtney Cronley, Kate Hyun, Stephen Mattingly, Multiple Additional Authors

TREC Project Briefs

This study explored how engineers, planners, and social workers interact around issues of transportation and transportation equity, and identified opportunities for enhanced collaboration and training in anticipation of emerging transportation needs for environmental justice (EJ) populations. This study provided the foundation for future educational research, identify strategies for using two Android apps (Safe Activity and My Amble) developed at the University of Texas at Arlington (UTA), and identified opportunities for collaborative solutions within the state of the practice. The study assessed the current level of knowledge amongst professionals (engineers, planners, and social workers) about the training needs of the other …

Motorbike-Related Injuries & Safety Practices Among Motorbike Riders In Kisumu, Western Kenya In 2019, Rowan Poehler

Independent Study Project (ISP) Collection

Road traffic injuries are a growing public health problem throughout the world. Kenya has is known for having unsafe roads with an estimated 13,463 road traffic fatalities in 2016 and 24% of road traffic fatalities coming from 2-and 3-wheeled vehicles (WHO, 2018). This study sought to analyze road safety measures and road traffic injuries amongst motorbike taxi drivers in Kisumu, Kenya. A qualitative survey was administered to 152 motorbike taxi drivers in Kisumu over a two-week period in April 2019. The results were then analyzed. Results showed that 70% of drivers owned a helmet for themselves and 48.3% of drivers …

Empleo Regional Y Transporte Público: Un Estudio De Caso Comparado De Accesibilidad Al Transporte De Parques Industriales En El Gran Buenos Aires Basado En La Medida De Sistema De Información Geográfica, Clara Wang

Independent Study Project (ISP) Collection

La accesibilidad al transporte es considerada como un elemento crítico del desarrollo urbano y además la clave del empleo. Este informe intenta analizar el problema de la baja tasa del empleo local enfrente de Malvinas Argentinas (MA)en relación con el bajo nivel de conectividad entre la zona industrial y residencial del municipio. Para contextualizar el problema de este desequilibrio en la región metropolitana de Buenos Aires, La Matanza (LM) será el caso de estudio por tratarse de un municipio similar en localización y estructura industrial. El Sistema de Información Geográfica (SIG) se utiliza para análisis de espacio y visualización de …

Latent Choice Models To Account For Misclassification Errors In Discrete Transportation Data, Lacramioara Elena Balan

Civil & Environmental Engineering Theses & Dissertations

One of the most fundamental tasks when it comes to analyzing data using statistical methods is to understand the relationship between the explanatory variables and the outcome. Misclassification of explanatory variables is a common risk when using statistical modeling techniques. In this dissertation, we define ‘misclassification,’ as a response that is reported or recorded in the wrong category; for example, a variable is registered as a one when it should have the value zero. Misclassification can easily happen in any data; for example, in an interview setting where the respondent misunderstands the question or the interviewer checks the wrong box. …

Whose Drive Is It Anyway? Using Multiple Sequential Drives To Establish Patterns Of Learned Trust, Error Cost, And Non-Active Trust Repair While Considering Daytime And Nighttime Differences As A Proxy For Difficulty, Scott Mishler

Psychology Theses & Dissertations

Semi-autonomous driving is a complex task domain with a broad range of problems to consider. The human operator’s role in semi-autonomous driving is crucial because safety and performance depends on how the operator interacts with the system. Drive difficulty has not been extensively studied in automated driving systems and thus is not well understood. Additionally, few studies have studied trust development, decline, or repair over multiple drives for automated driving systems. The goal of this study was to test the effect of perceived driving difficulty on human trust in the automation and how trust is dynamically learned, reduced due to …

Understanding The Construction Of Accessibility And Mobility: Non-Car Transportation In St. Louis, Missouri, Hannah N. Shumway

Geography Honors Projects

This research examines disadvantaged populations’ accessibility and mobility in the non-car transportation system in St. Louis. By employing mixed methods, this research investigates accessibility and mobility through three distinct scholarly lenses: physical infrastructure and proximity, individual experiences, and political processes. The thesis synthesizes the analyses from these three approaches in order to provide holistic policy recommendations for creating more equitable transportation systems in St. Louis and beyond. Empirical findings show that neighborhoods with lower median incomes and lower percentages of white population in St. Louis are less accessible for biking and walking, with highly variable public transit accessibility. Bike system …