Experimental Investigation Of The Self-Healing Potential Of Bacteria For Sustainable Concrete Structures,
2023
California State University, Long Beach
Experimental Investigation Of The Self-Healing Potential Of Bacteria For Sustainable Concrete Structures, Pitiporn Asvapathanagul, Simone Galano, Andrea Calabrese, Mehran Rahmani, Maggie Ly, Daniela Flores, Michael Hernandez, Nicholas Banuelos
Mineta Transportation Institute
Although concrete is the most widely used building material in the world, its limited tensile strength makes cracking a common phenomenon in concrete elements. This study investigates the potential of autonomous self-healing as an eco-friendly and lowcost method to increase the durability of concrete. The crack-healing potential of different types of high-alkaline-tolerant bacteria or calcite-precipitation microorganisms is investigated. High-alkaline-tolerant bacteria and calcite-precipitation microorganisms were used to retrofit lab-fractured concrete samples. The samples healed with each of these bacteria groups were cast and tested under compressive load up to failure to measure the compressive strength of the concrete samples. The outcomes …
Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects,
2023
San Jose State University
Preconstruction Support Cost Hours Estimating On Caltrans Pavement Rehabilitation Projects, Nigel Blampied, Tariq Shehab, Elhami Nasr, Laxmi Sindhu Samudrala
Mineta Transportation Institute
Because the construction phase accounts for the majority of project costs for pavement rehabilitation projects, most research on infrastructure project cost estimating focuses on that phase, rather than on the preconstruction phases. Nevertheless, costs incurred prior to construction, referred to in this report as "preconstruction costs" are significant and worthy of consideration (See Section 2.1 of the report for a more detailed and precise definition of preconstruction). In the 20202021 fiscal year, for instance, the California Department of Transportation (Caltrans) spent more than $169 million on preconstruction work for pavement rehabilitation projects. This report presents the results of a study …
Historic Downtown Streetscape Plan Price City, Utah,
2023
Utah State University
Historic Downtown Streetscape Plan Price City, Utah, Patricia Beckert
All Graduate Plan B and other Reports, Spring 1920 to Spring 2023
The idea of a small-town Main Street has profound meaning within the American culture that has prevailed for the past two centuries. Historically, Main Street serves as the beating heart of a community, a place where economic, social, cultural, and civic activities are centered (Francaviglia, 1996; Main Street America, n.d.). Since the beginning of the 19th century, many factors have led to the decline of Main Streets, and despite a variety of efforts from different stakeholders, that decline has only intensified in recent decades (Isenberg, 2008; Orvell, 2014 Howard, 2015). In 1980, after a three-year project conducted by the National …
The Use And Influence Of Health Indicators In Municipal Transportation Plans,
2023
Portland Sate University
The Use And Influence Of Health Indicators In Municipal Transportation Plans, Kelly Rodgers
PSU Transportation Seminars
As a social determinant of health, transportation significantly contributes to well-being through several pathways. Researchers and practitioners have called for health indicators as one way to integrate public health concerns into transportation decision-making. However, it is unclear how indicators are used and what their impact is on policy. This case study of five cities explored how health-related indicators are being used in municipal transportation plans, whether they are institutionalized into transportation agency decision-making processes, and what influence they have on administrative decision-making. In addition, this research also explored the conceptual use of indicators as it relates to social learning and …
Sex In The Cities: A Comparative Analysis Of Vienna And The United States’ Efforts In Gender Mainstreaming Transportation,
2023
University of Mary Washington
Sex In The Cities: A Comparative Analysis Of Vienna And The United States’ Efforts In Gender Mainstreaming Transportation, Sarah Miller
Departmental Honors & Graduate Capstone Projects
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 …
What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Thirteen Of A National Survey,
2023
San Jose State University
What Do Americans Think About Federal Tax Options To Support Transportation? Results From Year Thirteen Of A National Survey, Asha Weinstein Agrawal, Hilary Nixon
Mineta Transportation Institute
This report summarizes the results from the thirteenth 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 2,620 respondents completed the online survey from January 31 to March 10, 2022. 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 …
Tourism, Mapping, Retail And Recreational Trails: A Case Study Of Connectivity Between Trails And Adjacent Downtowns In Anniston, Alabama, Usa,
2023
Jacksonville State University
Tourism, Mapping, Retail And Recreational Trails: A Case Study Of Connectivity Between Trails And Adjacent Downtowns In Anniston, Alabama, Usa, Jennifer Green
Theses
This study examines the estimated increase in economic impact on a geography’s local economy by creating cross-marketing efforts between expanding an established outdoor recreation trail to a closely located city downtown commerce district. This research will analyze the resulting potential rise in sales/lodging tax revenues for that city by mapping the trail and downtown district, and cross-marketing the other to users of both or either venue. Potential increase in economic impact will be estimated utilizing IMPLAN methodology by assessing the economic impact on the local economy that a percentage range of increased spending resulting from this cross-marketing effort could generate.
A Continuation Of The Differentiation Of Transit Agencies And Their Funding In The United States,
2023
Otterbein University
A Continuation Of The Differentiation Of Transit Agencies And Their Funding In The United States, Hannah Stapp
Undergraduate Honors Thesis Projects
This paper explores the role of efficiency, and effectiveness, measured in relation to the differentiation of public transportation agencies operating in the United States with a bus mode. Data is gathered from the National Transit Database (NTD) from 2015-2019, at the agency level. A k-means clustering approach is used to determine how these ratios segment agencies in the market. After agencies are classified into three groups, a discriminant analysis is done to affirm the distinctiveness of the solution. Next, an Ordinary Least Squares (OLS) regression model is run each year to investigate whether or not the ratios used to form …
Towards Data And Solution-Focused Approaches For Homeless Populations On Publictransit,
2023
The University of Texas at Arlington
Towards Data And Solution-Focused Approaches For Homeless Populations On Publictransit, Anne Nordberg, Jaya Davis, Stephen Mattingly, Nithisha Gudipati, Ebonie Kinney, Hadiisha Butts
TREC Final Reports
People experiencing homelessness frequently rely on public transit systems and facilities as more than a mode of transportation to needed services, but also as safe shelters from weather and danger. This is a challenge for many transit agencies and impacts transit employees and passengers. Dallas and the surrounding counties have the largest homeless population in Texas, and they utilize the services of the Dallas Area Rapid Transit (DART) that serves 220,000 people per day in Dallas County and 12 surrounding counties. While there is much research focused on people experiencing homelessness, there are gaps in understanding how this population utilizes …
Do Travel Costs Matter For Persons With Lower Incomes? Using Psychological And Social Equity Perspectives To Evaluate The Effects Of A Low-Income Transit Fare Program On Low-Income Riders,
2023
Portland State University
Do Travel Costs Matter For Persons With Lower Incomes? Using Psychological And Social Equity Perspectives To Evaluate The Effects Of A Low-Income Transit Fare Program On Low-Income Riders, Katharine Mcmahon, Morgan Taylor, Liu-Qin Yang, Liming Wang, Aaron Golub, Greg Townley
TREC Final Reports
Objective: Access to transit can deliver a host of benefits to the riders and to the region. Previous research aiming to study these benefits has primarily relied on data collected from the opening of new routes or transit systems and focused on the general population. Little is known how low-income riders (LIR) react and benefit in response to when the cost barrier to access to transit is removed. With an intention to increase ridership while addressing the needs of transit-dependent riders in the region, TriMet (Portland, OR) expanded the Honored Citizens Program (HCP) in July 2018 to include low-income …
Grabbing The Paycheck: A Glimpse Into The Modern Economic Livelihoods Of Xe Máy Grab Drivers In Ho Chi Minh City, Vietnam,
2023
SIT Study Abroad
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 …
A Gravity Model Integrating Land-Use And Transportation Policies For Sustainable Development: Case Study Of Fresno, California,
2023
California State University, Fresno
A Gravity Model Integrating Land-Use And Transportation Policies For Sustainable Development: Case Study Of Fresno, California, Chih-Hao Wang, Na Chen
Mineta Transportation Institute
The idea of urban compaction has been long proposed and promoted to address the problem of urban sprawl in many American cities. However, there are still rare successful cases of such implementation in the United States. This study uses a classic gravity model, TELEM (Transpiration, Economic, and Land-Use Model) to examine to what extent a land-use or transportation policy must be regulated to make the urban compaction occur in a typical auto-dependent city—Fresno, California. Five scenarios are considered (BL, L1, L2, T1, and T2), in which the baseline (BL) is a natural growth scenario. Without any policy interventions, the city …
Modeling And Evaluating Alternatives To Enhance Access To An Airport And Meet Future Expansion Needs,
2023
University of North Carolina at Charlotte
Modeling And Evaluating Alternatives To Enhance Access To An Airport And Meet Future Expansion Needs, Srinivas S. Pulugurtha, Abimbola Ogungbire, Chirag Akbari
Mineta Transportation Institute
The continued growth of air travel calls for the incessant construction effort at many airports and their surroundings. Thus, there is a need to determine how airports can better manage existing infrastructure to accommodate this growth. This study, therefore, focuses on (1) investigating how changes in transportation infrastructure have affected travel time reliability (TTR) of the surrounding road network within the airport vicinity over time, and, (2) exploring selected unconventional intersection designs and proposing new inbound/outbound access routes from the nearby major roads to the airport. The efficiency of road networks that surrounds large airports is discussed using Charlotte Douglas …
Using Thermal Remote Sensing To Quantify Impact Of Traffic On Urban Heat Islands During Covid,
2023
San Jose State University
Using Thermal Remote Sensing To Quantify Impact Of Traffic On Urban Heat Islands During Covid, My-Thu Tran, Bo Yang
Mineta Transportation Institute
A three-month lockdown in the U.S. at the beginning of the COVID-19 outbreak in 2020 greatly reduced the traffic volume in many cities, especially large metropolitan areas such as the San Francisco Bay Area. This research explores the impact of transportation on climate change by using remote sensing technology and statistical analysis during the COVID-19 lockdown. Using thermal satellite data, this research measures the intensity of the urban heat island, the main driver for climate change during the urbanization process. The research team acquired morning and afternoon MODIS data in the same periods in 2019 before the pandemic and 2020 …
Durations Of Dockless E-Scooter Trips Before And During The Covid-19 Pandemic In Austin, Tx: An Analysis Using Hazard-Based Duration Models,
2023
Singapore Management University
Durations Of Dockless E-Scooter Trips Before And During The Covid-19 Pandemic In Austin, Tx: An Analysis Using Hazard-Based Duration Models, Amin Azimian, Junfeng Jiao
Research Collection College of Integrative Studies
The pandemic arising from the 2019 coronavirus disease has significantly affected all facets of human life across the world, including economies and transportation systems, thereby changing people’s travel behaviors. This research was aimed at exploring the relationship between socio-economic factors and e-scooter trip durations before and during the pandemic. We developed a hazard-based duration approach and estimated multiple spatial and non-spatial models on the basis of 2019 and 2020 dockless e-scooter data collected from the City of Austin’s Open Data Portal. The results indicated an overall increase in e-scooter trip durations after the pandemic. Moreover, analysis of variables revealed potential …
Webinar: Planning And Development In Gateway Communities, Post Covid,
2023
University of Arizona
Webinar: Planning And Development In Gateway Communities, Post Covid, Philip Stoker
TREC Webinar Series
Gateway communities are the small towns outside of national parks, forests, scenic rivers, and ski resorts. This presentation will highlight the housing, transportation, and development challenges that these communities faced in the aftermath of the COVID 19 pandemic. Our study captured the perspectives of over 200 communities using a questionnaire and case study approach. We present these results and highlight the innovative strategies that these communities are using to address their housing and transportation challenges.
Is It Worth Promoting Battery Swapping? A Social Welfare Perspective On Provider- And Consumer-Side Incentives,
2023
Xidian University
Is It Worth Promoting Battery Swapping? A Social Welfare Perspective On Provider- And Consumer-Side Incentives, Zhaojun Yang, Xu Zu, Jun Sun, Quanlong Lei, Yali Zhang
Information Systems Faculty Publications
In countries that promote further EV diffusion, battery swapping opens up a market outlet for time-sensitive consumers as well as another green policy channel. To better understand this phenomenon from the perspective of policy-making, this study establishes a Hotelling model of a competitive market comprising a battery swapping service provider and a charging service provider. The analyses of three scenarios, no subsidization, consumer subsidization, and provider subsidization, reveal how to maximize social welfare. Considering subsidy amount, consumer time preferences, service time, and operating costs, the findings provide valuable insights for policymakers. Whereas incentive programs are generally helpful for battery swapping …
Planning For Pedestrians And Bicyclists During Construction Projects,
2023
Texas A&M Transportation institute
Planning For Pedestrians And Bicyclists During Construction Projects, John Habermann, P.E.
Purdue Road School
This session will explore how the Texas Department of Transportation Waco District addressed pedestrian/bicyclist safety and mobility during a multi-year construction project along I-35. This presentation will demonstrate the value of online tools, field implementations, and data collection. Attendees will learn the value of assembling a stakeholder steering committee; counting pedestrian and bicyclists before, during, and after construction; effectively using pavement clings; and using a webpage dedicated to pedestrian/bicyclist updates.
See A Sign? Make A Call,
2023
Texas A&M Transportation institute
See A Sign? Make A Call, John Habermann, P.E.
Purdue Road School
DOT staff and technology resources have the proven potential to help combat human trafficking if DOT employees know the indicators of human trafficking and how to cooperate with requests from agencies for information that can be derived from DOT assets. The Texas A&M Transportation Institute, NCHRP, and the Heart of Texas Human Trafficking Coalition will discuss the intersection of human trafficking with the transportation sector. Attendees will also learn the main components of human trafficking, the basic signs of human trafficking on DOT facilities, and resources to use in their own states.
Final Report: California Tribal Nations Transportation Planning Needs Assessment Study,
2023
Mineta Transportation Institute
Final Report: California Tribal Nations Transportation Planning Needs Assessment Study, Seetha Reddy, Ashley Parker, David Reinke, Kaely Colligan
Mineta Transportation Institute
The Tribal Transportation Planning Needs Assessment Study was a collaborative project conducted by Caltrans and the Mineta Transportation Institute, San Jose State University. The primary goal of the project was to identify the current state of transportation planning activities and partnerships within Tribal governments in California, so that Caltrans can meaningfully engage more actively with Tribal governments early in the planning process and better meet the transportation needs of Tribal communities. The study focused on the 109 federally recognized Tribal Nations in California, and collected data through a survey questionnaire. The key task undertaken by the study team was to …
