greenhouse gases

Barriers to Reducing the Carbon Footprint of Transportation

  • Principal Investigator Giovanni Circella, Ph.D.
  • University of California, Davis
The key objective of this contract is to inform the California Air Resources Board on the quickly evolving transportation patterns resulting from the deployment and adoption of emerging transportation technologies, and the disruptions associated with the COVID-19 pandemic, and identify opportunities for reduction of vehicle miles travelled (VMT) and greenhouse gas (GHG) emissions from transportation.
Project Status
In Progress

Benchmarking GHG Emissions from California Concrete Production and Readily Implementable Mitigation Methods

Research Product Type
Research Report
The manufacturing of Portland cement leads to notable greenhouse gas (GHG) emissions, which has driven interest in alternative concrete mixture designs, cement production processes, and other emissions mitigation strategies. To demonstrate the efficacy of such mitigation strategies, environmental impact assessments are commonly performed. However, examination of the probability that a reduction in GHG emissions will occur given known limitations on data quality and variability in data remains poorly studied.

Democratization of Electric Vehicle Charging Infrastructure

  • Principal Investigator Adam Davis, Ph.D
  • University of California, Davis
The electrification of privately owned vehicles is a necessary step to eliminating transportation greenhouse gas emissions. The adoption of electric vehicles so far has been heavily focused among high-income commuters who live in major metropolitan areas.
Project Status
In Progress

Emissions Impact of Connected and Automated Vehicle Deployment in California

This research seminar will cover Giovanni Circella's study that examined the existing literature on the expected impacts of CAV deployment on travel demand, gathered feedback through a workshop with leading experts in the field, and explored several California scenarios of light-duty CAV vehicle technology adoption, usage preferences, and policies in 2050 to estimate the associated VMT and resulting criteria pollutant and GHG emissions.

Measuring, Analyzing, and Identifying Small-Area Vehicle Miles Traveled Reduction

  • Principal Investigator Susan Handy, Ph.D.
  • University of California, Davis
This project will complete a minimum of three case studies of local communities that have experienced substantial changes in the transportation system and/or land development patterns to assess the change in VMT that has resulted; the forces contributing to transportation and land use changes, including local and/or regional policy changes, will also be examined.
Project Status
In Progress

Quantifying Environmental Impacts from Concrete Production, While Accounting for Data Variability and Uncertainty

Research Product Type
Policy Brief
Concrete is also responsible for over 8% of annual anthropogenic greenhouse gas (GHG) emissions globally. As population and urbanization increase and existing infrastructure deteriorates, demand for production of concrete will increase, and with it, the environmental burdens from its production. The models used to determine environmental impacts of producing concrete have considerable uncertainty and variability. This makes it challenging to identify the most effective means of mitigating these burdens.