- About the Lecture
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About the Lecture
Transportation systems, as we know them today, will simply not sustain the worlds’ growing population. Imagine a projected population of nine billion individuals. If this future population had mobility patterns like drivers in the United States, there would be a staggering 7.6 billion motor vehicles, using 440 million barrels of oil and producing 62 billion tons of CO2 per year.
John Sterman says it is self-evident that our current transportation model simply will not scale. But, since the gross world product (GWP) is growing at 3.2% annually, and doubles every twenty years, our current model of development is an overture for environmental disaster.
It is clear to Sterman that we need to think differently about the problem. People need access to goods, services, people, and opportunities. This access is what traditional forms of transportation provide. We also need to see transportation in its complexity, and expect that our planning efforts will have totally unintended, unexpected “rebound” effects. Sterman provides two examples of these rebound effects.
The first examines the relationship between reducing traffic congestion and mass transit. Traditionally, the solution to traffic congestion has been one of supply and demand, and new roads are built to accommodate the increase in vehicle traffic. But, notes Sterman, augmenting road capacity just does not work: When new capacity is added, new vehicle trips, or longer ones, are encouraged. These trips quickly fill up the new road capacity, which produces a spiral of more severe traffic congestion. Meanwhile, some portion of these new auto trips come at the expense of public transit, which, upon losing riders, then reacts by either cutting service, or increasing fares. This downward spiral of public transit has a feedback loop which increases the attractiveness of driving. Sterman observes that planning is chaotic if we don’t pay attention to these feedback loops and really think through what it is people want to achieve.
A different, but equally complex set of feedback loops, has been the undoing of the alternative fuels industry. Over a thirty-year horizon, three countries, namely Brazil, New Zealand, and Argentina each developed a national policy and provided incentives to reduce their dependence on foreign oil. Unfortunately, none of their fuel programs grew large enough to achieve sufficient scale economies. Sterman characterizes these new starts as “sizzle and fizzle”. He cautions us from repeating their mistakes as a current initiative gets underway to develop a hydrogen vehicle and fueling network in California.
Having volume and scale will help us go down the learning curve, and we also need to bring many groups into the problem solving- these include vehicle manufacturers, fuel retailers, suppliers, and consumers. But, technology alone will not solve the problem. Sterman says we should prepare for the counter-intuitive lessons of transportation, and recognize that we will achieve better results if we make driving less attractive.Related Videos
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- About the Speaker
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About the Speaker
John Sterman PhD '82
Jay W. Forrester Professor of Management and Engineering Systems
Director, System Dynamics Group, MITJohn D. Sterman's research includes systems thinking and organizational learning, computer simulation of corporate strategy, and the theory of nonlinear dynamics. He is the author of many scholarly and popular articles on the challenges and opportunities facing organizations today, including the book Modeling for Organizational Learning, and the award-winning textbook Business Dynamics.
Sterman's research centers on improving managerial decision making in complex systems. He has pioneered the development of "management flight simulators" of corporate and economic systems.
Sterman has twice been awarded the Jay W. Forrester Prize for the best published work in system dynamics. He won a 2005 IBM Faculty Award, and the 2001 Accenture Award for the best paper of the year published in the California Management Review (with Nelson Repenning). He has five times won awards for teaching excellence from the students of the MIT Sloan School of Management, and was named one of the Sloan School's "Outstanding Faculty" by the 2001 Business Week Guide to the Best Business Schools. - About the Host
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About the Host
Transportation@MIT
Transportation@MIT is a coordinated effort to address one of civilization’s most pressing challenges: the environmental impact of the world’s ever-increasing demand for transportation.
Building on MIT’s rich tradition of engineering research and interdisciplinary collaboration, the initiative knits together the wide-ranging, robust research already under way at the Institute and creates new opportunities for education and innovation.
Video Player
Sustainable Accessibility: A Grand Challenge for the World and for MIT
- John Sterman PhD '82
- February 9, 2010
- Running Time: 1:01:32
