Professor Yi Jiang is a Full Professor in the School of Construction Management of Purdue University. He received his Master’s and PhD degrees in Civil... Read More

Jim is a Master Black Belt at The Heritage Group, the parent company of US Aggregates. He has over 30 years of experience designing, deploying,... Read More

I am a research engineer at the Division of Research, Indiana Department of Transportation, specializing in pavement friction and traffic safety. I have been in... Read More

Melissa Ehrhart is the INDOT Statewide Geologist. She has been with INDOT for 10 years as the Fort Wayne District Geologist to the current position.... Read More