Dr. Carrigan began her career in civil engineering as a highway designer joining a Massachusetts consulting firm. Dr. Carrigan later joined the Massachusetts Highway Department, then later a second consulting firm. She was responsible, during these engagements, for the design of highway geometric improvements; the design of highway reconstruction and maintenance projects; the design of signalized and unsignalized intersections and interchanges; the preparation of temporary traffic control plans; construction and maintenance inspection; and preparation of contract documents.

Dr. Carrigan formed a research consulting business with two partners in 2010 and has subsequently been almost exclusively focused on roadside and highway safety research. Dr. Carrigan has or is currently conducting research funded by the National Academy of Science’s National Cooperative Highway Research Program (NCHRP), the Federal Highway Administration (FHWA), and a variety of other government and industry sponsors.
 

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