All Research Products | National Center for Sustainable Transportation

Exploring Microtransit Adoption and its Impacts on Transportation Access for Underserved Populations

Research Product Type

Research Report

This project evaluates a broad range of factors influencing microtransit adoption and travel behavior among underserved populations using original revealed choice survey data collected from February – May 2024 with online and intercept surveys.

Dataset: A Survey of Agencies on Mitigating Extreme Heat Exposure through Novel Materials and Improved Pedestrian Infrastructure Design

Research Product Type

Data

This is the dataset of the National Center of Sustainable Transportation (NCST) project titled A Survey of Agencies on Mitigating Extreme Heat Exposure through Novel Materials and Improved Pedestrian Infrastructure Design.

Assessing the Growth of Multi-EV Households in California

Research Product Type

Research Report

This work is the first to examine households’ decision to maintain at least two plug-in electric vehicles (PEVs) in their household fleets.

Bikesharing and other micromobility services can improve connectivity between affordable housing communities and transit

Research Product Type

Policy Brief

A team at the University of California, Davis, conducted a case study in Sacramento, California, to explore bikesharing as an option for connecting affordable housing residents with transit services. This brief summarizes the findings from that research and provides implications for the field.

Dataset: MOVES-Matrix 3.0: On-Road Energy and Emission Modeling with High-Performance Supercomputing

Research Product Type

Data

This is the dataset for the NCST project "MOVES-Matrix 3.0: On-Road Energy and Emission Modeling with High-Performance Supercomputing."

Dataset: Using Multi-Modal Path-Specific Transit Trips in Transportation Social Sustainability Analysis: Case Study in Atlanta, GA

Research Product Type

Data

Research performed in this supplemental NCST study improved model algorithms to increase analytical efficiency and to integrate ridership demographics, so that energy use impacts could be assessed across demographic groups for use in social sustainability analysis.

Rural travel burdens in the United States: Unmet need and travel costs

Research Product Type

Associated Publication

Using the 2017 National Household Travel Survey, this study quantifies and compares travel burdens in rural versus nonrural communities in the United States.

Dataset: Enhanced Accounting for Item Cost Variability in AASHTOWare Project Software Dataset

Research Product Type

Data

This is the dataset for project "Enhanced Accounting for Item Cost Variability in AASHTOWare Project Software"

Exploring the Differences in Types of Commodities and Delivery Methods among Online Shoppers during the Early Stage of the COVID-19 Pandemic

Research Product Type

Associated Publication

This research examines the factors that can help explain the differences between users and non-users of online shopping in the U.S.A. during April and May 2020 to help understand the barriers to home-based shopping accessibility.

Dataset: Dataset of air travelers’ ground transportation choice at four airports in Northern California

Research Product Type

Data

This dataset is collected during the project "Air travelers’ Ground Transportation Choice at Four Airports in Northern California."It contains the survey responses regarding the use of the four airports in Northern California.

Sensitivity of AERMOD (V21112) RLINEXT dispersion model outputs by source type to variability in single noise barrier height and separation distance

Research Product Type

Associated Publication

The research presented in this paper explores the impacts of noise barrier characteristics on AERMOD-predicted concentrations.

Dataset: A Modeling Framework for Near-Road Population Exposure to Traffic-Related PM2.5 and Environmental Equity Analysis: A Case Study in Atlanta, Georgia

Research Product Type

Data

In this study, a modeling framework for population exposure to traffic-related PM2.5 is proposed and applied to the I-575/I-75 Northwest Corridor (NWC) in Atlanta, GA, for environmental equity analysis. This dataset contains the energy and emission rate matrices used for the study.

Sensor placement considering the observability of traffic dynamics: On the algebraic and graphical perspectives

Research Product Type

Dissertation / Thesis

Traffic sensors serve as one of the most important sources for such data by providing an accurate and reliable general picture of the traffic system. In this dissertation, a new sensor location model is developed to maximize the observability of link densities in a dynamic traffic network described using a piecewise linear ordinary differential equation system.

Sensor placement considering the observability of traffic dynamics: On the algebraic and graphical perspectives

Research Product Type

Associated Publication

In this paper, the authors present a new sensor location model that aims to maximize observability of link densities in a dynamic traffic network described using a piecewise linear system of ordinary differential equations.

Exploring the Environmental Sustainability and Social Equity Benefits of Micromobility Services

Research Product Type

Dissertation / Thesis

This dissertation consists of six studies that explore the environmental sustainability and social equity implications of micromobility services, separately and together. The studies compiled in this dissertation examine the implications of travel behavior for environmental sustainability through the lens of equity.

Using Multi-Modal Path-Specific Transit Trips in Transportation Social Sustainability Analysis: Case Study in Atlanta, GA

Research Product Type

Research Report

Research performed in this supplemental NCST study improved model algorithms to increase analytical efficiency and to integrate ridership demographics, so that energy use impacts could be assessed across demographic groups for use in social sustainability analysis.

Synthetic Fleet Generation and Vehicle Assignment to Synthetic Households for Regional and Sub-regional Sustainability Analysis

Research Product Type

Research Report

In this study, a modeling framework was developed to generate high-resolution synthetic fleets, for use with synthetic household modeling in activity-based travel models, by integrating various data sources.

Travel Demand Modeling and the Assessment of Environmental Impacts: A Literature Review

Research Product Type

Research Report

The purpose of this literature review is to assess what is currently known about the ability of travel demand forecasting models (TDMs) to provide accurate forecasts for different types of transportation plans and projects with respect to different outcome measures of interest.

Dataset: Synthetic Fleet Generation and Vehicle Assignment to Synthetic Households for Regional and Sub-regional Sustainability Analysis

Research Product Type

Data

This is the dataset for the project "Synthetic Fleet Generation and Vehicle Assignment to Synthetic Households for Regional and Sub-regional Sustainability Analysis" (GT-DOT-716).

Mobility, Energy, and Emissions Impacts of SAEVs to Disadvantaged Communities in California

Research Product Type

Research Report

This study delves into the energy and emissions impacts of Shared Autonomous and Electric Vehicles (SAEVs) on disadvantaged communities in California.