environment | National Center for Sustainable Transportation

Instantaneous Hybridization Factor: New Metric to More Accurately Model Hybrid-Electric Vehicle Emissions

Research Product Type

Research Brief

This research brief summarizes the findings from University of Vermont work to develop a new parameter that could serve as the basis for future hybrid vehicle emissions models: the instantaneous hybridization factor.

Integrating Car-Following Models and Vehicle Specific Power Emission / Fuel Consumption

Principal Investigator Hongyu Lu
Georgia Institute of Technology

In this research, widely used car-following models are re-assessed for use in emission/fuel consumption estimation, with their impact on vehicle specific power and instantaneous engine work as comparative indices.

Project Status

In Progress

Intelligent Transportation Systems for Improving Traffic Energy Efficiency and Reducing GHG from Roadways

Research Product Type

Policy Brief

This policy brief discusses the benefits of Intelligent Transportation Systems (ITS), which have generated considerable enthusiasm in the transportation community due to their potential for improving roadway safety, reducing traffic congestion, and enhancing the mobility of people and goods.

Life Cycle Assessment and Life Cycle Cost Analysis of Pavements from Alkali-Activated Materials

Principal Investigator Kimberly E. Kurtis, Ph.D.
Georgia Institute of Technology

This research proposal will compare alkali activated materials, asphalt and “green” asphalt pavement technology through life cycle assessment and life cycle cost analysis, using the state of Georgia as a case study.

Project Status

Complete

Life Cycle Assessment for Complete Streets: Framework and Pilot Studies

Principal Investigator Alissa Kendall, Ph.D.
University of California, Davis

This project evaluates complete streets through a life cycle assessment approach, taking into consideration sociodemographic factors in addition to environmental factors.

Project Status

Complete

Life Cycle Modeling of Technologies and Operational Strategies for a Sustainable Freight System in California

Principal Investigator Alissa Kendall, Ph.D.
University of California, Davis

This research will apply a life cycle perspective to assess the energy use, greenhouse gas emissions, air quality impacts, and costs of on-road freight vehicle technologies and operational strategies identified under California's Sustainable Freight Action Plan.

Project Status

Complete

Life Cycle Modeling of Technologies and Strategies for a Sustainable Freight System in California

Research Product Type

Research Report

The goal of this research is to quantify the life cycle environmental impacts and life cycle costs for on-road goods movement in California to estimate the abatement potential and economic costs and benefits of electrifying California’s freight truck sector.

Managing the Impacts of Freight in California

Principal Investigator Genevieve Giuliano, Ph.D.
University of Southern California

The purpose of this research is to generate recommendations on the most effective strategies for reducing freight related congestion and its impacts

Project Status

Complete

Modeling for Local Impact Analysis

Principal Investigator Petros Ioannou, Ph.D.
University of Southern California

This project developed a set of traffic simulation models for the Los Angeles/Long Beach region that allowed the researchers to evaluate impacts on transportation system efficiency and on the environment.

Project Status

Complete

Monitoring Sea Level Rise at the Local and Regional Scale

Research Product Type

Policy Brief

This policy brief summarizes findings from a project which utilized a method to monitor shoreline and infrastructure changes in response to sea level rise using a network of time-lapse cameras.