Mr. Thornton is a Principal at VAI with over 20 years of experience in the areas of Traffic Engineering and Transportation Planning. He has conducted numerous analyses including Impact Assessments, Corridor Studies, Signal Warrant Analyses, Functional Design Reports, and Parking Evaluations for a variety of land uses at Vanasse & Associates, Inc.  He has been involved in various aspects of Traffic Engineering, including the preliminary design and analysis of roadways, intersections, roundabouts, highway interchanges, and traffic signal systems.