1. Center for Transportation Research, College of Engineering, The University of Tennessee, Knoxville, TN, USA
2. Automobile & Traffic Engineering College, Liaoning University of Technology, Liaoning, China
3. Department of Civil & Environmental Engineering, The University of Tennessee, Knoxville, TN, USA
4. Traffic Engineering, Inc., Houston, TX, USA
5. School of Automobile, Chang'an University, Shaanxi, China