energy | National Center for Sustainable Transportation

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 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 Roadway Systems to Reduce GHG Emissions and Improve Energy Efficiency: A Focus on Traffic Operations

Principal Investigator Matthew Barth, Ph.D.
University of California, Riverside

In this project, the researchers survey a variety of traffic operation strategies that have both an indirect energy-emissions benefit as well as strategies that are developed specifically for reducing energy consumption and emissions.

Project Status

Complete

Modeling Bioenergy Supply Chains: Feedstocks Pretreatment, Integrated System Design Under Uncertainty

Research Product Type

Dissertation / Thesis

This dissertation presents a methodology that incorporates uncertainty element to the existing integrated modeling framework specifically designed for advanced biofuel production systems using dedicated energy crops as feedstock resources. The goal of the framework is to support the bioenergy industry for infrastructure and supply chain development.

Modeling Integrated Bioenergy Supply Chain Systems Under Uncertainty

Principal Investigator Yuanzhe Li
University of California, Davis

This dissertation develops an integrated modeling framework for advanced biofuel production system from dedicated energy crops under uncertainty. The goal of this framework is to support strategic infrastructure development and policy making for bioenergy production systems.

Project Status

Complete

Modeling the Impact of Road Grade on Driving Behavior, Vehicle Energy Consumption, and Emissions

Principal Investigator Haobing Liu, Ph.D.
Georgia Institute of Technology

This study addresses two issues: 1) how road grade impacts vehicle speed and acceleration distributions, and how such distributions vary across vehicle types, roadway types, traffic conditions, etc.; and 2) how significant the impact of integrating grade interactions is with respect to energy, emissions, and air quality modeling.

Project Status

Complete

Network-wide Emissions Estimation Using the Macroscopic Fundamental Diagram

Principal Investigator Rafegh Aghamohammadi
Georgia Institute of Technology

Estimation of emissions and energy consumption using MOVES (Motor Vehicle Emission Simulator) model is cumbersome for large-scale network and intractable for real-time analysis and control purposes

Project Status

In Progress

Next Generation Electric Vehicle Energy Modeling in Transportation Networks

Research Product Type

Dissertation / Thesis

In this study, a modal-based approach for estimating energy consumption and emissions of electric vehicles is proposed.