Transportation

Perspective: A New System for Preventing Bridge Collapses


George C. Lee, Ernest Sternberg


Of these, combined and consequent events are the most likely multihazard events except for scour, which can cause long-term subsequent events. In practice, it may be difficult to distinguish between combined and consequent events. The critical lesson is that bridge design and planning must increasingly take into account such combinations of events. Comprehensive monitoring Bridge […]

This article is in Health Care Touchstones: Cost and Quality, Spring 2008

Practical Pieces of the Energy Puzzle: Getting More Miles per Gallon


Christopher Evans, Lynette Cheah, Anup Bandivadekar, John Heywood


The answer may require looking beyond CAFE standards and implementing other consumer-oriented policy options to wean drivers away from past habits. In December 2007, concerns over energy security and human-induced climate change prompted Congress to increase Corporate Average Fuel Economy (CAFE) standards for the first time in 20 years. The new standards aim to reduce […]

This article is in Practical Pieces of the Energy Puzzle, Winter 2009

After the Motor Fuel Tax: Reshaping Transportation Financing


Martin Wachs


Congress should seize the opportunity to shift to a system of direct user fees to support transportation activities. Congress will soon begin considering a new transportation bill that is expected to carry a price tag of $500 billion to $600 billion to support a huge number of projects nationwide. Public debate over the bill is […]

This article is in What Science Can Do, Summer 2009

Bringing U.S. Roads into the 21st Century


Stephen Ezell


A wide range of technologies and techniques are now available to vastly improve the performance of our transportation system, but we have been slow to adopt them. Information technology (IT) has transformed many industries, from education to health care to government, and is now in the early stages of transforming countries’ transportation systems. Although many […]

This article is in Making College Affordable, Summer 2010

California’s Pioneering Transportation Strategy


Daniel Sperling, Mary Nichols


The state that has become identified with freeways and smog now aspires to become the leader in reducing motor vehicles’ carbon footprint and changing the way people travel. No place in the world is more closely associated with the romance of the automobile and the tragedy of its side effects than California. Having faced the […]

This article is in Economic Stimulus, Winter 2012

Perspective: Getting the Most Out of Electric Vehicle Subsidies


Jeremy J. Michalek, Mikhail Chester, Constantine Samaras


The electrification of passenger vehicles has the potential to address three of the most critical challenges of our time: Plug-in vehicles may produce fewer greenhouse gas emissions when powered by electricity instead of gasoline, depending on the electricity source; reduce and displace tailpipe emissions, which affect people and the environment; and reduce gasoline consumption, helping […]

This article is in Social Science and Environmental Policy, Summer 2012