1. Assistant Research Professor, Maryland Transportation Institute (MTI), University of Maryland, College Park, MD, USA
2. Assistant Professor, The University of Utah, Floyd & Jeri Meldrum Civil Engineering, Salt Lake City, UT, USA
3. Herbert Rabin Distinguished Professor Director, Maryland Transportation Institute (MTI) University of Maryland, College Park, MD, USA
4. Graduate Research Assistant, Maryland Transportation Institute (MTI), University of Maryland, College Park, MD, USA
5. Assistant Division Chief Programming Planning and Development Division State Highway Administration (SHA) Maryland Department of Transportation (MDOT), Hanover, MD, USA