Research Staff


Oscar FranzeseTim J. LaClair
Ph.D., Mechanical Engineering
(T) 865.946.1305
(F) 865.946.1541

Specialty Research Areas:

  • Vehicle Fuel Efficiency
  • Modeling and Simulation
  • Hybrid Vehicle Propulsion and Control
  • Vehicle Safety and Stability
  • Traffic Management Technologies
  • Energy Storage and Utilization

Current or Recent Work:

  • Heavy Truck Rollover Characterization
  • Assessment of Advanced Fuel Efficiency Technologies
  • Smart Cruise Control and Collaborative Traffic Management Systems

Significant Publications:

Pape, D., M. Arant, W. Brock, E. Broshears, C. Chitwood, R. Clinansmith, J. Colbert, M. Cutler, R. Hathaway, M. Keil, T. LaClair, M. McAuley, J. Patterson, J. Petrolino, C. Pittro, A. Spezia, D. Wafer, “U32: Vehicle Stability and Dynamics: Longer Combination Vehicles, Final Report,” NTRCI (2011).

Pape, D., M. Arant, W. Brock, D. Delorenzis, T. LaClair, A. Lim, J. Petrolino, A. Spezia, “U31: Vehicle Stability and Dynamics: Electronic Stability Control, Final Report,” NTRCI (2011).

LaClair, T.J., Large Scale Duty Cycle (LSDC) Project: Tractive Energy Analysis Methodology and Results from Long-Haul Truck Drive Cycle Evaluations, ORNL/TM-2011/455, Oak Ridge National Laboratory, Oak Ridge, TN, 2011.

LaClair, T.J. and Truemner, R., "Modeling of Fuel Consumption for Heavy-Duty Trucks and the Impact of Tire Rolling Resistance," SAE Commercial Vehicle Engineering Congress and Exhibition, November 2005. SAE Paper 2005-01-3550.

LaClair, T.J. and Zarak, C., "Truck Tire Operating Temperatures on Flat and Curved Test Surfaces," presented at the 2004 Tire Society meeting, September, 2004, Akron, Ohio, Tire Science and Technology, Vol. 33, pp. 156-166, 2005.

LaClair, T.J., "Tire Rolling Resistance and its Impact on Vehicle Fuel Consumption," Proceedings of the 2004 International Tire Exhibition and Conference (ITEC), September, 2004, Akron, Ohio.

LaClair, T.J., "Tire Rolling Resistance," in The Pneumatic Tire, Edited by J. Walter and A. Gent, University of Akron, Published by The National Highway Traffic Safety Administration, 2005.

Arant, M., Attanayake, U., Franzese, O., Hathaway, R., Keil, M., Knee, H., LaClair, T., Nelson, S., Pape, D., Ro, K., Heavy Truck Rollover Characterization (Phase-B) Final Report, NTRCI, 2009. (In press).


Edition 36 of the Transportation Energy Data Book Released
The Transportation Energy Data Book (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 35. The TEDB is produced by Oak Ridge National Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.

2016 Vehicle Technologies Market Report
The 2016 Vehicle Technologies Market Report was released May 25, 2017 via the web. The report details the major trends in U.S. light-duty vehicle and medium/heavy truck markets. This report is produced by Oak Ridge National Laboratory for the U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy.

Numerous CTA Staff gave presentations at the DOE Annual Merit Review Meeting, June 6-10, 2016.
The U.S. Department of Energy's (DOE's) 2016 Annual Merit Review and Peer Evaluation Meetings for the Hydrogen and Fuel Cells Program and the Vehicle Technologies Program were held June 6-10, 2016. Numerous CTA Staff presented at this event.