Transportation Commons^™

Steps To Supplement Park-And-Ride Public Transit Access With Ride-And-Ride Shuttles, John S. Niles, J. M. Pogodzinski

Mineta Transportation Institute

Public transit ridership in California declined in the five years before the pandemic of 2020–21 and dropped significantly further after the pandemic began. A sharp downward step in the level of transit boarding occurred after February 2020, and continues to the date of this report as a result of the public-health guidance on social distancing, expanded work-at-home, and a travel mode shift from public transit to private cars. A critical issue has come to the foreground of public transportation policy, namely, how to increase the quality and geographic reach of transit service to better serve the essential trips of mobility …

Developing An Effective Targeted Mobile Application To Enhance Transportation Safety And Use Of Active Transportation Modes In Fresno County: The Role Of Application Design & Content, Samer Sarofim

Mineta Transportation Institute

Do pedestrians and cyclists need their own app? Pedestrians and cyclists in Fresno county think so, and this research examined this need and how it relates to the importance of app design. Survey participants (all who regularly use active transportation modes) along with a variety of transportation stakeholders, including the Fresno Council of Government, the California Department of Transportation (Caltrans) District 6, and the City of Fresno — Public Works Department, indicated the importance of designing effective communication tools to enhance the utilization of active transportation modes and to ensure the safety of vulnerable road users. In this study, over …

Move: Mobile Observers Variants And Extensions, Ryan Florin

Computer Science Theses & Dissertations

Traffic state estimation is a fundamental task of Intelligent Transportation Systems. Recent advances in sensor technology and emerging computer and vehicular communications paradigms have brought the task of estimating traffic state parameters in real-time within reach.

This has led to the main research question of this thesis: Can a vehicle accurately estimate traffic parameters using onboard resources shared through CV technology in a lightweight manner without utilizing centralized or roadside infrastructure?

In 1954 Wardrop and Charlesworth proposed the Moving Observer method to measure traffic parameters based on an observed number of vehicle passes. We start by proposing methods for detecting …

النقل السري بمدينة فاس, مخلص الدرقاوي العلوي

Dirassat

Clandestine Transport in Fez

The article introduces the peculiarity of the “Clandestine Transport” in Fez and its types, and it assesses its size and spatial distribution. The purpose here is to know the structure of the clandestine transport network and, thus, explain the phenomenon by uncovering its causes. The study makes use of the analysis of bibliographic data and of the opinions of the actors.

The researcher relied mainly- due to the limited data - on the field observation technique as a systematic approach to the article to find the elements to capture the implications of the clandestine transport phenomenon, …

Webinar: Electric Bus Deployment: Cost And Environmental Equity, Cathy Liu

TREC Webinar Series

This presentation introduces an innovative spatiotemporal analytical framework and web-based visualization platform developed by researchers at the University of Utah to assist transit agencies in identifying optimal deployment strategies for a battery-electric bus (BEB) system by using a combination of mathematical programming methods, GIS-based analysis, and multi-objective optimization techniques. The framework allows transit agencies to optimally phase in BEB infrastructure and deploy the BEB system in a way that can minimize the capital and operational cost of the BEB system while maximizing its environmental benefits (i.e., emission reduction).

Robotic Parking Technology For Congestion Mitigation And Air Quality Control Around Park & Rides, Mahdi Yoozbashizadeh, Forouzan Golshani

Mineta Transportation Institute

A lack or limited availability for parking may have multiple consequences, not the least of which is driver frustration, congestion, and air pollution. However, there is a greater problem that is not widely recognized by the public, namely the negative effect on the use of transit systems due to insufficient parking spaces close to key transit stations. Automated parking management systems, which have been successfully deployed in several European and Japanese cities, can manage parking needs at transit stations more effectively than other alternatives. Numerous studies have confirmed that quick and convenient automobile access to park-and-ride lots can be essential …

Equity In Accessibility, A Case Study Of City Of Sacramento, Meredith C. Milam

City and Regional Planning

This paper is a Geographic Information Systems (GIS) spatial analysis of the transportation accessibility and equity in Sacramento, California. A literature review examines discriminatory regulatory policies in the 1900s that wrote racial segregation into law. The effects of these policies have lasting effects on spatial dispersal of people and create barriers to accessibility and therefore result in inequitable transportation systems. The accessibility and equity analysis in Sacramento explores demographic data, job concentration and available modes of transportation, and commuter data. The results of the analysis suggest that there is no “one-size-fits-all” approach when it comes to measuring accessibility and equity. …

First Train Timetabling And Bus Service Bridging In Intermodal Bus-And-Train Transit Networks, Liujiang Kang, Hao Li, Huijun Sun, Jianjun Wu, Zhiguang Cao, Nsabimana Buhigiro

Research Collection School Of Computing and Information Systems

Subway system is the main mode of transportation for city dwellers and is a quite signif-icant backbone to a city's operations. One of the challenges of subway network operation is the scheduling of the first trains each morning and its impact on transfers. To deal with this challenge, some cities (e.g. Beijing) use bus 'bridging' services, temporarily substitut -ing segments of the subway network. The present paper optimally identifies when to start each train and bus bridging service in an intermodal transit network. Starting from a mixed integer nonlinear programming model for the first train timetabling problem, we linearize and …

Parking Spaces To People Places, Shawn Canny, Natalie Knowles, Arva Hussain, Ann Le, Megan Doherty, Elizabeth Cox

Master of Urban and Regional Planning Workshop Projects

In partnership with the Portland Bureau of Planning and Sustainability (BPS), we sought to better understand how off-street parking space could accommodate economic activity in East Portland, the city’s most economically and racially diverse neighborhood. We focused on two different neighborhoods based on equity considerations and interest: the Rosewood and the Jade Districts. The goal was to better understand these areas with granularity but also to juxtapose them looking for similarities and differences that could guide our recommendations for using parking spaces and serving the community. This project was exploratory in nature. Our research questions and resulting deliverables were dynamic. …

Do Multi-Use-Path Accessibility And The Clustering Effect Play A Role In Residents' Choice Of Walking And Cycling?, Chih-Hao Wang, Na Chen

Mineta Transportation Institute

The transportation studies literature recognizes the relationship between accessibility and active travel. However, there is limited research on the specific impact of walking and cycling accessibility to multi-use paths on active travel behavior. Combined with the culture of automobile dependency in the US, this knowledge gap has been making it difficult for policy-makers to encourage walking and cycling mode choices, highlighting the need to promote a walking and cycling culture in cities. In this case, a clustering effect (“you bike, I bike”) can be used as leverage to initiate such a trend. This project contributes to the literature as one …

What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Twelve Of A National Survey, Asha Weinstein Agrawal, Hilary Nixon

Mineta Transportation Institute

This report summarizes the results from the twelfth year of a national public opinion survey asking U.S. adults questions related to their views on federal transportation taxes. A nationally-representative sample of 2,516 respondents completed the online survey from February 5 to 23, 2021.

The questions test public opinions about raising the federal gas tax rate, replacing the federal gas tax with a new mileage fee, and imposing a mileage fee just on commercial travel. In addition to asking directly about support for these tax options, the survey collected data on respondents’ views on the quality of their local transportation system, …

Addressing Barriers To The Use Of Value Capture To Fund Transit-Oriented Developments, Shishir Mathur, Aaron Gatdula

Faculty Research, Scholarly, and Creative Activity

No abstract provided.

Webinar: Eliminating Cash Options For Public Transit Fares: Costs, Benefits And Equity Impacts, Aaron Golub

TREC Webinar Series

Many transit agencies plan to automate their fare collection and limit the use of cash, with the goals of improving boarding and data collection while lowering operating costs. Yet about 10% of adults in the United States lack a bank account or credit card, and many either rely on restrictive cell-phone data plans or don’t have access to internet or a smartphone. This webinar will present part of a larger research project exploring these issues in the cities of Denver, Colorado, and Eugene and Portland–Gresham, Oregon. In this part, we explore the tradeoffs between reducing cash acceptance, ridership and the …

Transportation And Gentrification: Impacts On Low-Income Black Households In Portland, Steven Howland

PSU Transportation Seminars

Portland’s Black population has been heavily impacted by gentrification in the historic Albina community. Nearly half of Portland’s Black population lives in the area east of 82nd Ave, known as East Portland. This has had substantial impacts on both Black households that can continue living in Albina and those living in East Portland. The suburban-esque built environment of East Portland makes it difficult to get around and reach basic necessities. Those living in Albina have taken on exorbitant rents. Both groups suffer from a geographic divide that has made it difficult to rely on family and friends for basic needs …

Mass Transit Policy: Responding To Covid-19, Susan E. Baer, George R. Larkin

Journal of Sustainable Social Impact

Mass transit is vital to daily life in U.S. cities and many other cities throughout the world. Mass transit systems are vulnerable to pandemics like COVID-19 and other less serious threats. Post COVID-19 mass transit policy must be different than its predecessors if mass transit is to provide a reliable, sustainable, and equitable means of transportation. Future mass transit systems will be the outcome of public health, technological, economic, and political considerations. This paper provides an initial attempt to identify and discuss these four considerations as most relevant to the development of an equitable and efficient mass transit policy for …

A Spatial Analysis Of Supply-Demand Of Public Transportation In Jefferson County, Kentucky., Nastaran Abdoli

Electronic Theses and Dissertations

Public transportation is important as it serves individuals, especially the transit-dependent population, by providing a basic mobility service to these people and all others who rely on public transportation. This research utilized estimating public transportation demand and supply to analyze the spatial patterns of public transportation in Jefferson County, Kentucky. The study focuses on the transit-dependent population, and it considers indicators of age, poverty status, vehicle ownership, and foreign-born population with less than five years residency in the United States. This study conducted a public transit supply-demand analysis to identify areas with imbalanced supply and demand in Jefferson County at …

Fair Housing And Transit-Centric Development: Finding A Path Forward, Alison Cingolani

Master's Projects

This study examines the implementation of land use planning under SB 375, and analyzes the siting of low-income housing related to areas rich in opportunity in Santa Clara County. How do sites planned or chosen for the development of housing in the current planning cycle relate to areas of opportunity?

Tripdecoder: Study Travel Time Attributes And Route Preferences Of Metro Systems From Smart Card Data, Xiancai Tian, Baihua Zheng, Yazhe Wang, Hsao-Ting Huang, Chih-Cheng Hung

Research Collection School Of Computing and Information Systems

In this paper, we target at recovering the exact routes taken by commuters inside a metro system that are not captured by an Automated Fare Collection (AFC) system and hence remain unknown. We strategically propose two inference tasks to handle the recovering, one to infer the travel time of each travel link that contributes to the total duration of any trip inside a metro network and the other to infer the route preferences based on historical trip records and the travel time of each travel link inferred in the previous inference task. As these two inference tasks have interrelationship, most …

Ability Of Bay Area Cities To Accommodate Plug-In Electric Vehicles: A Process Evaluation, Chi-Pei Fang

Master's Projects

Numerous studies have mentioned that there are lots of factors that may affect electric vehicle adoption, including residents’ income, manufactures’ behavior, mass transportation system, and so on (Larson et al., 2014; Majumdar, 2005; Millard-Ball, 2012; Azevedo et al., 2017; Liao, 2018). While the issue of electric vehicle adoption has been explored in a wide range of contexts, there is a limited number of studies to understand how the policies are implemented from the perspective of a “city.”

In recent years, several studies have started to pay more attention to a city's role in electric vehicle adoption (Baker et al., 2012; …

Uri And Its Students: A Contract For The Provision Of A Safe Environment, Danielle Joan Beatrice

Senior Honors Projects

DANIELLE BEATRICE (English; Philosophy; Business) URI and Its Students: A Contract for the Provision of a Safe Environment

Sponsor: Judith Swift (Communication Studies, Coastal Institute)

When students begin to attend college, they expect to be consumed with busy schedules, heavy workloads, and an exciting social life. Students do not anticipate being in dangerous situations. However, this does not mean that such situations do not occur. Therefore, it is essential to teach students to be active participants in educating themselves and their peers regarding prevention and response to emergency situations. My Honors Project aims to increase the awareness of safety-related issues …