Transportation Commons^™

Huburban America: New Haven And The Promise Of Mobility, Jhansiddh Setthachayanon

Library Map Prize

This project analyzes micromobility as the emerging solution to New Haven’s incomplete urban transportation project. It argues that micromobility’s legitimization through mobility hubs is key to the city’s modern connectivity. Finally, it proposes a version of new hubs for New Haven.

Does The Transit Industry Understand The Risks Of Cybersecurity And Are The Risks Being Appropriately Prioritized?, Scott F. Belcher, Terri Belcher, James Grimes, Lusa Holmstrom, Andy Souders

Mineta Transportation Institute

The intent of this study is to assess the readiness, resourcing, and capabilities of public transit agencies to detect, identify, be protected from, respond to, and recover from cybersecurity vulnerabilities and threats. This study is an update of the 2020 Mineta Transportation Institute (MTI) study, “Is the Transit Industry Prepared for the Cyber Revolution? Policy Recommendations to Enhance Surface Transit Cyber Preparedness.” In the previous study, the authors found that the transit industry was ill-prepared for cybersecurity attacks. Unfortunately, after four years and the development of new, and often free, resources, the situation has not markedly improved. In fact, this …

The Effects Of The Covid-19 Pandemic On Transit In The San Francisco Bay Area, Richard W. Lee, David B. Reinke, Christopher E. Ferrell, Charles Rivasplata, John M. Eells, Luana Chen

Mineta Transportation Institute

This report presents the findings from our study for the California State Assembly Transportation Committee on the effects of the COVID-19 pandemic on Bay Area Transit. The study consisted of a review of the literature on the effects of the pandemic on transit in the US, a detailed look at changes in ridership and economics for Bay Area transit agencies, comparisons of Bay Area transit ridership changes to those in similar US metropolitan areas, and analysis of possible remedies to restore the financial health of Bay Area transit agencies. Bay Area transit ridership has recovered somewhat from the depths of …

Measurement And Prediction Of Transit System Performance Using Probe Data Generated Through Dsrc And Non-Dsrc Technologies, Gregory L. Newmark

Mineta Transportation Institute

This research explores the application of two different probe data standards to transit performance measurement. The first section chronicles the proposed and implemented transit uses of dedicated short-range communication (DSRC) technologies during the two decades between the standard’s emergence and its announced sunset. The research finds that, despite proposed applications across safety, operation, and information domains, DSRC never became embedded in transit operations. By contrast, the general transit feed specification (GTFS) standard with its real-time (RT) extension has been widely embraced and offers the potential to use the associated VehiclePosition messages as probe data to generate detailed transit performance metrics. …

Examining Transit Service Improvements With Internet-Of-Things (Iot): A Disparity Analysis, Shailesh Chandra, Robert Valencia, Vamsi Krishna Oruganti

Mineta Transportation Institute

Literature shows that poor service reliability of transit often leads to uncertain waiting times at transit stations, diminishing their popularity and usage, and this particularly affects low-income populations more likely to rely heavily on transit. This research delves into an in-depth analysis of the inequality assessment of the Los Angeles (LA) Metro Rail lines, with a particular focus on evaluating the potential impacts of integrating Internet of Things (IoT) technology. This study investigates how IoT could influence service connectivity, accessibility, and the existing disparities in transit services. The primary goal of this study is to assess how the implementation of …

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 …

Transit Equity In Southeast Brooklyn, Noam J. Gal

Student Theses and Dissertations

Over the years, planners have considered numerous proposals to expand the subway system further into Southeast Brooklyn including the Utica Avenue Line and the Interborough Express. It remains to be seen whether any of these megaprojects will come to fruition. This honors thesis analyzes the equity impact that Brooklyn’s largest transit desert has had upon its inhabitants. I use an interdisciplinary approach to analyze both qualitative and quantitative data to explain why the subway does not extend into the focus area, how residents have adapted to the status quo, and what policymakers can do to improve transit equity in Southeast …

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 …

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 …

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

Rail Fixed Guideway Systems In Western U.S. Regions, Kelly A. Beavers

UNLV Theses, Dissertations, Professional Papers, and Capstones

This research explores the policy factors influencing the intraregional development of rail transit. For the purpose of this research, policy factors include: institutional arrangements, factors associated with governance, and factors in the policymaking process. The research questions are studied in five case study MSAs within the Pacific West and Mountain West regions of the United States: Phoenix-Mesa-Chandler, AZ; Denver-Aurora-Lakewood, CO; Riverside-San Bernardino-Ontario, CA; Los Angeles-Long Beach-Anaheim, CA; and Portland-Vancouver-Hillsboro, OR. The foundational problems that frame this research are the challenges of urban planning at a regional scale, specifically for transportation. The more specific challenge of transportation planning is situated within …

Factors Influencing Fixed-Route Transit Decision-Making: Exploring Differences By Disability And Community Type, Jordana L. Maisel, Molly E. Ranahan, Jimin Choi

Journal of Public Transportation

Transit agencies utilize the following complementary initiatives to encourage greater fixed-route transit usage by people with disabilities: (1) implement more rigorous paratransit eligibility determination practices and (2) address the factors that deter people with disabilities from using fixed-route transit. This research focuses on the latter and uses previously conducted survey data to determine the most important factors individuals with disabilities consider when deciding to use various transportation options, and how these factors vary by disability and community type. Findings indicate that individuals with mobility impairments consistently rated the built environment factors as more important to their transit mode decision-making than …

Toward A Guide For Smart Mobility Corridors: Frameworks And Tools For Measuring, Understanding, And Realizing Transportation Land Use Coordination, Bruce Appleyard, Jonathan Stanton, Chris Allen

Mineta Transportation Institute

The coordination of transportation and land use (also known as “smart growth”) has been a long-standing goal for planning and engineering professionals, but to this day it remains an elusive concept to realize. Leaving us with this central question -- how can we best achieve transportation and land use coordination at the corridor level?

In response, this report provides a review of literature and practice related to sustainability, livability, and equity (SLE) with a focus on corridor-level planning. Using Caltrans’ Corridor Planning Process Guide and Smart Mobility Framework as guideposts, this report also reviews various principles, performance measures, and place …

Is The Transit Industry Prepared For The Cyber Revolution? Policy Recommendations To Enhance Surface Transit Cyber Preparedness, Scott Belcher, Terri Belcher, Eric Greenwald, Brandon Thomas

Mineta Transportation Institute

The intent of this study is to assess the readiness, resourcing, and structure of public transit agencies to identify, protect from, detect, respond to, and recover from cybersecurity vulnerabilities and threats. Given the multitude of connected devices already in use by the transit industry and the vast amount of data generated (with more coming online soon), the transit industry is vulnerable to malicious cyber-attack and other cybersecurity-related threats. This study reviews the state of best cybersecurity practices in public surface transit; outlines U.S. public surface transit operators’ cybersecurity operations; assesses U.S. policy on cybersecurity in public surface transportation; and provides …

Curb-Sided: How Technology Disrupts The American Transportation Planning Process, Mary Angelica Painter

Dissertations

The disruptive arrival of Uber, Lyft, and other transportation network companies (TNCs) into American cities ignited arguments on how policy-makers should regulate such entities. Policy debates started among policymakers, companies, and existing industries and interests. In attempts to persuade policy, actors adopted a variety of language and used different levels of government to achieve policy goals. In almost all cases, TNCs were able to gain favorable policy through image framing and venue shopping – the key components to Punctuated Equilibrium Theory (PET). This analysis looks at the policy process of three American cities: Chicago, IL, St. Louis, MO, and Austin, …

Transit Access Equity In Richmond, Va, Rachel Jordan

Theses and Dissertations

The purpose of this thesis is to analyze the extent of public transit access equity issues in Richmond, VA. The City of Richmond has an established public transportation network system, and the thesis explores the level of access for urban residents to use existing public transportation services. Technologies and programs have begun to emerge across the United States to help solve transit accessibility challenges. The thesis assesses the level of transit access equity that exists in Richmond and introduces technologies and services that could help improve accessibility and equity. The thesis uses a mixed methods approach that will consist of …

Examining The Development Effects Of Modern-Era Streetcars: An Assessment Of Portland And Seattle, Jeffrey Brown, Joel Mendez

Mineta Transportation Institute

Most U.S. cities pursuing streetcars are doing so primarily for their purported development effects, as opposed to for their transportation role, yet there is little evidence about the nature or magnitude of these development effects due to a scarcity of rigorous, empirical research. Most available work simply presents descriptive information about development outcomes (typically measured as changes in population, employment, land values, or permit activity) within streetcar corridors as indicators of the streetcar’s development effects. Alternate factors which may have influenced such results are often not considered, placing into question the validity of such measures.

This study examines the development …

The State And Future Of Autonomous Vehicle Regulation In The United States, Nikolay Nyashin

Dissertations, Theses, and Capstone Projects

Autonomous vehicle technology is poised to revolutionize transit around the world. There are currently tens of private companies either testing or building autonomous vehicles, including industry juggernauts like Ford and Google. This new mode of transportation falls into a regulatory grey area. Once cars reach full autonomy, governments will have to decide what entities will regulate them, where they will be allowed to drive, who will be responsible for them and a host of other issues. In some municipalities like San Francisco and Phoenix, autonomous vehicles (AVs) are being tested on public streets in real life conditions. Meanwhile, in 2017, …

Explaining Market Urbanism, Michael Lewyn

Scholarly Works

Compares Market Urbanism to New Urbanism and Landscape Urbanism

Improving Livability Using Green And Active Modes: A Traffic Stress Level Analysis Of Transit, Bicycle, And Pedestrian Access And Mobility, Maaza C. Mekuria, Bruce Appleyard, Hilary Nixon

Mineta Transportation Institute

Understanding the relative attractiveness of alternatives to driving is vitally important toward lowering driving rates and, by extension, vehicle miles traveled (VMT), traffic congestion, greenhouse gas (GHG) emissions, etc. The relative effectiveness of automobile alternatives (i.e., buses, bicycling, and walking) depends on how well streets are designed to work for these respective modes in terms of safety, comfort and cost, which can sometimes pit their relative effectiveness against each other. In this report, the level of traffic stress (LTS) criteria previously developed by two of the authors was used to determine how the streets functioned for these auto alternative modes. …

The Challenge Of Protecting Transit And Passenger Rail: Understanding How Security Works Against Terrorism, Brian Michael Jenkins

Mineta Transportation Institute

Terrorists see transit and passenger rail as an attractive target. Designed for public convenience, trains and stations offer terrorists easy access to crowds of people in confined environments where there are minimal security risks and attacks can cause high casualties. This report examines the unique attributes of the terrorist threat, how security measures against terrorism have evolved over the years, and their overall effectiveness.

Does security work? Empirical evidence is hard to come by. Terrorist incidents are statistically rare and random, making it difficult to discern effects. The fact that terrorists focus most of their attacks on targets with little …

Public Transit Equity Analysis At Metropolitan And Local Scales: A Focus On Nine Large Cities In The Us, Greg P. Griffin, Ipek N. Sener

Journal of Public Transportation

Recent studies on transit service through an equity lens have captured broad trends from the literature and national-level data or analyzed disaggregate data at the local level. This study integrates these methods by employing a geostatistical analysis of new transit access and income data compilations from the Environmental Protection Agency. By using a national data set, this study demonstrates a method for income-based transit equity analysis and provides results spanning nine large auto-oriented cities in the US. Results demonstrate variability among cities’ transit services to low-income populations, with differing results when viewed at the regional and local levels. Regional-level analysis …

The Us Transit Bus Manufacturing Industry, David Czerwinski, Xu (Cissy) Hartling, Jing Zhang

Mineta Transportation Institute

Manufacturing buses for the US transit market has been a challenging business over the last several decades. It is a small market with volatile demand. Many manufacturers have gone bankrupt, left the market, or been acquired by competitors. Manufacturers of transit buses in the US must comply with a wide range of operational and design regulations. The most salient policy areas include regulating emissions, disabled access, procurement, alternative fuels, the Altoona Test, pooled purchases and piggybacking, spare ratios, workforce training, minimum useful life, Buy America, and research & development (R&D). The purpose of this report is to provide policy makers …

Planning For Bike Share Connectivity To Rail Transit, Greg P. Griffin, Ipek N. Sener

Journal of Public Transportation

Bike sharing can play a role in providing access to transit stations and then to final destinations, but early implementation of these systems in North America has been opportunistic rather than strategic. This study evaluates local intermodal plan goals using trip data and associated infrastructure such as transit stops and bike share station locations in Austin, Texas, and Chicago, Illinois. Bike sharing use data from both cities suggest a weak relationship with existing rail stations that could be strengthened through collaborative, intermodal planning. The study suggests a planning framework and example language that could be tailored to help address the …

Impact On Bus Ridership From Changes In A Route’S Span Of Service, Jacob Simmons, Peter Haas

Faculty Publications

Ridership response to changes in a bus route’s span of service—the start time of the first trip to the end time of the last trip each day—was examined specifically for hours that were not altered by a change in the span of service. Data were obtained for 39 routes from nine transit agencies in the western United States that experienced changes in the span of service without any other types of changes to enable the largest known analysis of such data from American transit systems. Results demonstrated that bus routes receiving an increase in the span of service experienced a …

The Benefits Of Transit In The United States: A Review And Analysis Of Benefit-Cost Studies, Christopher E. Ferrell

Mineta Transportation Institute

This white paper presents the findings from a review and analysis of the available literature on benefit-cost (b-c) estimates of existing U.S. transit systems. Following an inventory of the literature, the b-c estimates from each study were organized according to the type of study area (e.g., rural, small urban, urban, etc.). Through this process, categories of monetary transit benefits were identified. The estimated dollar value for each benefit category was divided by the total estimated costs of providing the transit services, thus creating a benefit-specific b-c ratio for each category and allowing benefits from each study to be compared on …

Economic And Traffic Impacts Following The Installation Of New Bicycle Facilities: A Denver Case Study, Stephen Antonio Rijo

Electronic Theses and Dissertations

America is currently experiencing a unique departure from the historical vehicle miles traveled (VMT) trend, often referred to as "peak travel." Decreasing VMT numbers suggest that the US is currently experiencing an unprecedented change in the way individuals utilize transportation systems. The following research calls on a need to understand the importance of improving alternative transportation infrastructure, namely cycling facilities, and how this impacts local businesses and their communities. This research informs the overarching question, "What are the economic and traffic impacts of cycling facilities?" A mixed methods analysis of retail sales tax, traffic count, and RTD transit access data …

Accessibility's Influence On Population Location Near Light Rail In The Denver Region, Christophe Michael Zuppa

USF Tampa Graduate Theses and Dissertations

Accessibility is the most important concept in transportation planning because it describes the ease of travel to opportunities vital for everyday needs. Theoretically, people locate closer to transit corridors if accessibility improves. One desired benefit from light rail is denser land use patterns in the form of Transit Oriented Development (TOD) that captures population growth. In October 1994, the City of Denver, CO, joined the list of American cities that have implemented light rail within the last 33 years. Since then, five corridors have opened there, and planners are retooling their zoning codes to allow TOD near light rail. The …

Measuring The Performance Of Livability Programs, Mti Report 12-06, Peter J. Haas, Lisa Fabish

Mineta Transportation Institute

This report analyzes the performance measurement processes adopted by five large “livability” programs throughout the United States. It compares and contrasts these programs by examining existing research in performance measurement methods. The “best practices” of the examined performance measurement methods for each program are explored and analyzed with respect to their key characteristics. The report entails an appropriately comprehensive literature review of the current research on performance measurement methods from the perspective of various stakeholders including the public and government agencies. Additionally, the results of this literature review are used to examine the actual performance measures of the target programs …

Transit In A Border Zone: The Demand For Public Transportation In Three Texas Border Cities, Adam Gregory Walke

Open Access Theses & Dissertations

Factors affecting the demand for public transportation include those, like fares or the level of service, that transit administrators can directly influence as well as those, like gasoline prices, that are beyond administrators' control. This study considers both but focuses on the latter and, more specifically, on how proximity to an international border affects transit ridership. Pedestrian border crossings have a significant effect on ridership levels in El Paso, Brownsville, and Laredo, Texas. Also, ridership correlates positively with the purchasing power of the peso in Laredo and with Mexico's industrial production index in El Paso. In the context of prior …