John Sangster is a current doctoral student in civil engineering. It is building safer roads for when his kids are driving that motivates him to pursue his degree and career.
His TEDxVirginiaTech talk, "Can We Live with Traffic?," focused on the inherent problems of conventional signalized intersections, and seeks to shed light on known solutions that are not being widely implemented.
TED is a nonprofit organization devoted to "Ideas Worth Spreading." The annual TED Conference invites the world's leading thinkers and doers to speak for 18 minutes.