Transportation Commons^™

Ai-Based Environmental Code Checking Tool For Sustainability Best Management Practices Of Infrastructure Construction Projects, Joseph J. Kim, Pooja D. Chavan

Mineta Transportation Institute

Infrastructure construction and operation are major contributors to global greenhouse gas emissions, which account for approximately one-third of global CO₂ emissions and add to long-term environmental and air quality challenges. Sustainability rating systems such as Envision for infrastructure construction projects provide structured guidance to help teams reduce these impacts, but verifying compliance requires reviewing large volumes of project documents by hand, making the process time consuming and difficult to scale. Therefore, this research develops an AI-based environmental code checking tool that automates the interpretation of project documents and evaluates compliance on lifecycle GHG assessment under Credit CR1.2 of Envision—in other …

Mountain Development In Nepal: Settlements, Infrastructure, And Economic Transformation, Keshav Bhattarai, Ambika P. Adhikari

Himalayan Research Papers Archive

As Nepal urbanizes, expands infrastructure, strengthens local governments, and explores deeper connectivity with India and China, climate change is increasing floods, landslides, heat, and water insecurity. Rapid internal migration, rising disaster risks, youth outmigration, and dependence on remittances are also revealing the limits of conventional urban development, especially in the mountainous region. The central challenge for Nepal is no longer just to accommodate growing towns and cities, but to build settlements that are safe, productive, environmentally resilient, and capable of sustaining long-term prosperity.

This paper argues that Nepal's urban future must be guided by a new development paradigm centered on …

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.

An Ambient Nox Reduction Reactor System With And Without Forced Air, Hamid Rahai, Rylan Moffit, Komal Gada, Jeremy Bonifacio

Mineta Transportation Institute

Ambient nitrogen oxide (NOX) is one of the main ingredients involved in the formation of ground-level ozone (smog), which contributes to global warming and the formation of particulates in the atmosphere and causes respiratory illnesses, especially in children, older adults, and people with lung diseases. Investigations on adding titanium dioxide (TiO2) nanoparticles to the paint used on concrete surfaces such as buildings and its potential in reducing ambient NOX concentration have provided opportunities for the research and development of methods for passive control and filtration of the ambient NOX. The present research used numerical geometrical optimization to identify an optimized …

Assessing Vulnerabilities Associated With High-Risk Dams In Utah, Courtney Flint Dr., Michael Englert, Upmanu Lall Dr.

I-GUIDE Forum

Across the United States, the age of dam infrastructure presents a substantial threat. The potential for structural failure associated with these aging dams is exacerbated by increased climate uncertainty and the threat of dam overtopping due to extreme and prolonged precipitation events. These compound threats place downstream areas at pronounced risk. These downstream areas vary widely. Some are relatively free of vulnerable elements, while others have a complex mix of infrastructure, populations, and ecologically important elements. This paper highlights the risk situation associated with aging dams and hydroclimatic extremes, the methodological and geospatial challenges and opportunities associated with mapping the …

Best Metros For Manufacturing In The Mountain West, 2024, Taylor Volk, Sean Curry, Mohit Pande, Anirudh Polagani, Kristian Thymianos, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet examines data on the top U.S. metros for manufacturing across four Mountain West states (Arizona, Colorado, Utah, and Nevada). The original report, titled “Best Metros for Manufacturing in the U.S.” by Commercial Search includes data on the top 100 U.S. metros for manufacturing.

Smart Highway Construction Site Monitoring Using Artificial Intelligence, Mehran Mazari, Yahaira Nava-Gonzalez, Ly Jacky N. Nhiayi, Mohamad H. Saleh

Mineta Transportation Institute

Construction is a large sector of the economy and plays a significant role in creating economic growth and national development,and construction of transportation infrastructure is critical. This project developed a method to detect, classify, monitor, and track objects during the construction, maintenance, and rehabilitation of transportation infrastructure by using artificial intelligence and a deep learning approach. This study evaluated the performance of AI and deep learning algorithms to compare their performance in detecting and classifying the equipment in various construction scenes. Our goal was to find the optimized balance between the model capabilities in object detection and memory processing requirements. …

Beneath I-280: Excavating A Neighborhood Lost To San José Freeways, Leila Ullmann, Gordon Douglas

Mineta Transportation Institute

Throughout the 1960s and 1970s, thousands of people in San José, California were displaced from their homes as the state used eminent domain to purchase land and uproot neighborhoods for the construction of Interstate freeways. This report presents a multifaceted research and public knowledge effort that uncovers some of the communities buried beneath these freeways, in the area where I-280 and CA-87 meet today near downtown San José. The project builds primarily from previously unprocessed California Department of Transportation (CalTrans) archival documents, which this project studies for the first time. The records are rich in detail about valuation and sale …

Examining The Externalities Of Highway Capacity Expansions In California: An Analysis Of Land Use And Land Cover (Lulc) Using Remote Sensing Technology, Serena E. Alexander, Bo Yang, Owen Hussey, Derek Hicks

Mineta Transportation Institute

There are over 590,000 bridges dispersed across the roadway network that stretches across the United States alone. Each bridge with a length of 20 feet or greater must be inspected at least once every 24 months, according to the Federal Highway Act (FHWA) of 1968. This research developed an artificial intelligence (AI)-based framework for bridge and road inspection using drones with multiple sensors collecting capabilities. It is not sufficient to conduct inspections of bridges and roads using cameras alone, so the research team utilized an infrared (IR) camera along with a high-resolution optical camera. In many instances, the IR camera …

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) …

Evaluation Of Sustainability Determinants To Develop A Sustainability Rating System For California Infrastructure Construction Projects, Joseph Kim, Patricia Mccarthy

Mineta Transportation Institute

This study evaluates the important sustainability determinants that affect factors’ success in meeting their sustainability goals when conducting infrastructure construction projects in California. The study implemented the online survey method to evaluate the sustainability characteristics that infrastructure industry professionals currently are aware of under the current situation in California. A data set of 25 validated survey responses is used for statistical data analysis using analysis of variables, Kruskal-Wallis tests, and two sample t-tests. The analysis results showed that the median response values for the six major sustainability categories do not show any significant difference. The results also showed that no …

Digital Twin Technology Applications For Transportation Infrastructure - A Survey-Based Study, Hector Cruz

Open Access Theses & Dissertations

In the past couple of decades, various industries have taken advantage of emerging advanced technologies, such as digital twin (DT), to find more effective solutions in their respective areas. In the transportation infrastructure sector, the concept and implementation of DT technologies are slowly gaining traction but lagging behind other major industries. To better understand the limitations, opportunities and challenges for the adoption of DT in this sector, a survey questionnaire was distributed to collect information from industry professionals involved in transportation infrastructure projects. The purpose of this study is to understand how DT technology is being perceived by the industry. …

Workshop Outcomes Report: 1st International Workshop On Seismic Resilience Of Arctic Infrastructure And Social Systems, Majid Ghayoomi, Katharine Duderstadt, Alexander Kholodov, Alexander Shiklomanov, Matthew Turner, Elham Ajorlou

Faculty Publications

No abstract provided.

How American Transit Agencies Determine Fare Policy: It All Comes Down To Politics, Julian Thesseling

CMC Senior Theses

This paper will provide readers with an understanding of the variables that US transit agencies grapple with when developing fare policy, with a particular focus on the political process. The framework chapter will examine the objectives of public transportation and how agencies face difficulties in achieving these objectives. While this paper will focus on American transportation policy, the framework will draw from the experiences of cities across the world. Three case study chapters will then each discuss an American city or region’s approach to fare policy, and how variables have either complicated or enhanced agencies’ ability to develop effective fare …

Developing Guidelines For Assessing The Effectiveness Of Intelligent Compaction Technology, Mehran Mazari, Siavash F. Aval, Siddharth M. Satani, David Corona, Joshua Garrido

Mineta Transportation Institute

Many factors affect pavement compaction quality, which can vary. Such variability may result in an additional number of passes required, extended working hours, higher energy consumption, and negative environmental impacts. The use of Intelligent Compaction (IC) technology during construction can improve the quality and longevity of pavement structures while reducing risk for contractors and project owners alike. This study develops guidelines for the implementation of IC in the compaction of pavement layers as well as performing a preliminary life-cycle cost analysis (LCCA) of IC technology compared to the conventional compaction approach. The environmental impacts of the improved construction process were …

Traffic Scorecard In Mountain West Cities, Kelliann Beavers, Eshaan Vakil, Katie M. Gilbertson, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This fact sheet presents congestion and mobility trends in 14 Mountain West cities as compiled by INRIX Research and author Trevor Reed, in the Global Traffic Scorecard, March 2020. The INRIX Global Traffic Scorecard examines the impact of vehicle travel on 975 congested cities in the world; this fact sheet focuses on the Mountain West, providing insight on the ranking and impacts of congestion. This fact sheet also supplements INRIX’s scorecard with population data from the U.S. Census Bureau to provide context for the rankings.

Traffic-Related Pedestrian Deaths In The Sun Belt Region, Madison Frazee-Bench, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This Fact Sheet presents data from Smart Growth America on the number of pedestrian fatalities in U.S. states and congressional districts. For the purpose of this fact sheet, the data included focus on the Sun Belt region between 2008 and 2017, highlighting areas with the highest rates of traffic-related pedestrian deaths.

Solving The First Mile/ Last Mile Problem: Electric Scooter And Dockless Bicycles Are Positioned To Provide Relief To Commuters Struggling With A Daily Commute, Kelly Grosshuesch

William & Mary Environmental Law and Policy Review

Commuters in cities across the United States struggle to find ease in their daily commute. Public transportation no longer provides residents with an adequate and reliable source of transportation.1 For many commuters, getting to and from nodes of public transportation is difficult and a deterrent from using public or shared transportation instead of driving.2 This, therefore, increases vehicle congestion and car emissions in cities. While multiple new technologies and innovations have emerged to attempt to help commuters with the trip to and from public transportation, most have fallen short.3 But two new innovations that have gained major popularity among consumers, …

Transportation Affordability In The Mountain West, Saha Salahi, Kelliann Beavers, Elia Del Carmen Solano-Patricio, Caitlin J. Saladino, William E. Brown Jr.

Transportation & Infrastructure

This Fact Sheet highlights “The Most and Least Affordable Cities For Public Transit” in the Mountain West. Extracting from Paul Reynolds’ analysis of over 70 transit system across the United States from 2014 to 2015, this fact sheet focuses on data for the 7 municipalities in the Mountain West: Albuquerque, NM; Ogden, UT; Boulder, CO; Phoenix, AZ; Las Vegas, NV, Salt Lake City, UT, and Denver, CO.

The Urban Heat Island Effect In Nevada, Ember Smith, Kaylie Pattni, Caitlin Saladino, William E. Brown

Environment

This fact sheet explores the temperature difference between Nevada cities and their undeveloped surrounding areas using reports by the Urban Land Institute, Climate Central, National Public Radio (NPR), and various governmental organizations. We investigate what “urban heat islands” are, their effects, the correlation between heat and income, and factors that contribute to rising temperatures in Las Vegas, North Las Vegas, Henderson, and Reno.

A Sustainable Performance-Based Methodology To Address The Impact Of Climate Changes On The, Oscar Ortega

Open Access Theses & Dissertations

This research focuses to address the effects of climate change on the transportation asset management. Climate change has resulted in increased storms, droughts, flooding, temperatures, and other climate to become more significantly frequent and powerful. As a result, climate change is now affecting the transportation assets around the world. This Thesis is divided into six components: the literature review, development of the framework, development of the methodology, case study, discussion, and conclusions. The literature review will show threats, risks, and performance measures to monitor the climate change impact on transportation infrastructure. The literature review includes transportation asset like bridges, roads, …

The Need For Enhanced Physical Infrastructure In The United States, Tanvi Gandham

CMC Senior Theses

An examination of necessary infrastructure improvements in the United States.

Massachusetts Urban Bicycle Preparedness, Rick L. Sheiber

Instructional Design Capstones Collection

Since 2007, Boston has made tremendous strides in shedding its designation by Bicycling Magazine as one of the “Worst Biking Cities” (Zezima, 2009, p. A12) by designating over 92 miles of bike lanes throughout the city and introducing bicycle initiatives like Boston Bikes, the Hubway bicycle sharing program. These efforts have resulted in a dramatic rise in the number of cyclists in Greater Boston and a decrease in accidents involving bicycles ((Pedroso, Angriman, Bellows & Taylor, 2016). While the quantitative research has been primarily positive, a 2017 survey initiated LivableStreets and the Longwood Area Cyclists of commuters in the Longwood …

Paying For Infrastructure In An Urban Environment: Roles Of Ideological Beliefs And Self-Interest In Support For Two Funding Mechanisms, Juita-Elena (Wie) Yusuf, Lenahan O'Connell, Khairul A. Anuar, Kaitrin Mahar

School of Public Service Faculty Publications

This study examines public preferences for two revenue options—fuel taxes and tolls—to finance transportation infrastructure in an urban area with the use of the results of a survey of residents of the Hampton Roads region of southeastern Virginia. Specifically, the study addresses two related research questions: (a) To what extent do residents support instituting tolls, increasing the fuel tax, or both? (b) What roles do self-interest and ideological beliefs play in support of increasing the fuel tax, imposing tolls, or doing both? The study finds that 50% of respondents expressed a willingness to support fuel taxes or tolls for infrastructure, …

An Overview Of System Design Issues Related To Safety Aspects Of Bicycle Infrastructure, Jan L. Botha

Mineta Transportation Institute

The purpose of this report is to provide a critical review of the current practices and policies regarding infrastructure design for bicycling. The infrastructure is discussed primarily from a system perspective.

The wide range of bicyclists’ physical characteristics (such as size, power, skill, response to road and traffic conditions) makes it challenging for the designer to design bicycle facilities with the same sophistication and safety as facilities for motor vehicles. An attempt should be made to integrate the design standards for motor vehicles and bicycles into common design manuals. Incompatibility of the standards may make it clear when separate facilities …

The Effects Of Discussion And Information On Public Support For Tax And Fee Increases For Transportation, Juita-Elena Yusuf, Lenahan O'Connell

School of Public Service Faculty Publications

This research note compares the effect on willingness to raise taxes and government fees of three common approaches to public consultation: (a) a telephone survey with no information or discussion, (b) a focus group with discussion but no information relating need to the proposed tax or fee, and (c) a focus group with discussion and such information. Our purpose is twofold: (a) illustrate the contribution of pertinent information to public acceptance of tax or fee increases, and (b) suggest a more comprehensive and informative approach to consultation with the public. We do so using the examples of raising the gas …

California Voting And Suburbanization Patterns: Implications For Transit Policy, Mti Report 12-05, Matthew J. Holian, Matthew E. Kahn

Mineta Transportation Institute

Public transit is an environmentally friendly transportation mode that usually focuses on transporting people within and to the city center. However, over the last 60 years, population and employment has been suburbanizing. As the median voter lives further from the city center, and thus enjoys fewer benefits from accessing public transit, does this reduce such a voter’s propensity to support public investment in public transit improvements? We analyze voting patterns on 20 transit-related ballot propositions from state-wide elections in California between 1990 and 2010. Controlling for demographic, socio-economic and political ideological factors, we focus on the role of suburbanization as …

Planning Bicycle Infrastructure Based On The Quickest Or Easiest Route Method, Olena Tokmylenko

All Theses

Current bicycle models assume average speed along the route and among routes and that travel time is proportional to distance. There is no method that determines realistic cycling time based on change in speed due to topography. My research proposes a model for the development of bicycle infrastructure based on reducing travel time and level of difficulty. I identified that topography, human power, and riding speed have strong relationship and developed a bicycle travel time model where speed is a function of human power and topography. I solved the shortest route problem with time impedance where time was computed based …

Slides: Impacts Of Energy Deficits In Cooking, Illumination, Water, Sanitation, And Motive Power, Paul S. Chinowsky

2012 Energy Justice Conference and Technology Exposition (September 17-18)

Presenter: Dr. Paul Chinowsky, Director, Mortenson Center in Engineering for Developing Communities; Professor, University of Colorado

25 slides

Integration Of Bicycling And Walking Facilities Into The Infrastructure Of Urban Communities, Research Report 11-05, Cornelius Nuworsoo

Mineta Transportation Institute

Several manuals, handbooks and web resources exist to provide varied guidance on planning for and designing bicycle and pedestrian facilities, yet there are no specific indications about which of the varied treatments in these guides work well for users. This project highlights best practices and identifies program characteristics associated with high levels of non-motorized travel, with an emphasis on bicyclists and pedestrians. It highlights practices in the California communities of Davis, Palo Alto and San Luis Obispo. The case studies are used to illustrate how urban communities have integrated non-motorized transportation modes into the physical infrastructure and worked to educate …