"The general press and transportation specialty publications are bursting with reports of new developments in four major disruptive transportation technologies:
As we look back on the auto revolution since 1945, we have spent trillions of dollars on cars and related infrastructure. These investments transformed our country and greatly assisted us to an unprecedented level of prosperity. Yet there are many things we would no doubt do differently with 20/20 hindsight to shape the use of cars in relation to other modes of travel and in relation to the urban forms we want to live in. As we look on in amazement at the current technological prowess on display in the auto and mobility industries, it is important that we learn from the automobile revolution of the last 75 years. We can learn from the past to shape new developments to meet shared goals as these technologies unfold, rather than suffer the impacts of unintended consequences."