Modeling and Simulation

The Center for Transportation Analysis staff model a diverse array of phenomena from traffic flows to energy demand, from travel behavior to refinery operations. We have produced critical planning systems used every day by the U.S. Air Force to schedule and route airlift (CAMPS), and key components for the Department of Energy's National Energy Modeling System. We have designed and developed models for personal computers, mainframes and the internet, using a wide variety of languages and modeling tools.

Primary Contact:

Recent Work:

  • Refinery Operations
    • Refinery impacts of diesel fuel reformulation with vector-based blending.
    • Development of vector-based methodology for estimation of diesel fuel emissions of oxides of nitrogen and particulate matter.
    • Estimation of ethanol demand in United States regional production of oxygenate-limited gasoline.
    • Refinery and logistics impacts of a Renewable Fuels Standard.
    • Impacts of MTBE phase-out.
    • Impacts of Mobile Source Air Toxics rule.
    • Cost of benzene reduction in gasoline.
  • Motor Fuel Consumption Modeling
  • Temporary Loss of Highway Capacity
  • Assigned Freight Movement and Passenger Travel on Transportation Networks
  • Intermodal Bottleneck Evaluation Tool (IBET)
  • Emergency Evacuation Modeling

Selected Presentations

Highlights

Transportation Energy Data Book: Edition 31
On July 31, 2012, ORNL release Edition 31 of the Transportation Energy Data Book (TEDB). The TEDB is a compendium of data on transportation with an emphasis on energy. Designed for use as a desktop reference, the TEDB was first published in 1976 and has continued to Edition 31. The TEDB is produced by Oak Ridge National Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.

ORNL Sustainability Summit
On May 2-3, ORNL held a Sustainability Summit to advance the deployment of sustainable technologies in the southeast. Diane Davidson developed and moderated at the Sustainable Transportation session, with Ron Littlefield, Mayor of Chattanooga, along with ORNL's Stacy Davis and David Greene.

U.S. DOE's Annual Merit Review and Peer Evaluation Meeting
David Greene, Zhenhong Lin and Jing Dong attended the U.S. DOE's Annual Merit Review (AMR) and Peer Evaluation Meeting in Washington, DC, May 14-17, 2012. David's presentation, "Fuel Cell Vehicle Penetration Relative to Vehicle Portfolio," and Zhenhong's presentation, "Impact of Program Targets on Vehicle Penetration and Benefits," were reported on by Slate and the Green Car Congress.

White House and U.S. DOE sponsored "Energy Data Jam"
David Greene participated in the White House and U.S. DOE sponsored "Energy Data Jam" at Stanford University On May 21, 2012. The invitation only workshop brought together "40 of the most innovative entrepreneurs, software developers, chief executive officers (CEOs), energy experts and policy makers to discuss how we can unleash the power of data, technology, and innovation to help with our pressing energy goals."

Vehicle Technologies Program Fact of the Week
Stacy Davis, Bob Boundy, and Susan Diegel develop Facts of the Week that are posted on the DOE Vehicle Technologies Homepage. For the month of March, half of the top 10 landing pages for the DOE Vehicle Technologies Homepage were Facts that they have written. (A landing page is where one enters the website for the first time.) "The FOTW pages are our biggest traffic-getters" says Suzanne Williams who compiles the Vehicle Technology website statistics for DOE.