Ph.D., Civil Engineering, University of Arkansas, Fayetteville, Arkansas, 1997.
M.S.C.E., Civil Engineering, University of Arkansas, Fayetteville, Arkansas, 1994.
B.S.C.E., Civil Engineering, Louisiana Tech University, Ruston, Louisiana, 1985.
Center Director, University Transportation Center for Mobility, Texas Transportation Institute, May 2006 - Present.
Director, Mack-Blackwell Rural Transportation Center, University of Arkansas, Fayetteville, Arkansas, May 1999 - April 2006.
Assistant Professor, Department of Civil Engineering, University of Arkansas, Fayetteville, Arkansas, July 1998 - April 2006.
Assistant Professor, Department of Civil Engineering, University of Florida, July 1997 - May 1998.
Senior Graduate Assistant, University of Arkansas, Fayetteville, Arkansas, August 1992 - May 1997.
Summerlin Associates, Inc., Little Rock, Arkansas, August 1987 - July 1992.
Black & Veatch, Dallas, Texas, March 1985 - August 1987.
Professional Engineer in Arkansas, Registration No. 7387, 1990.