The development of ultrcapacitors for electric and hybrid vehicle applications has been underway since the early 1990s. In this report, those development activities are reviewed and the status of the technology, as of mid-1995, is assessed. It was found that work is being done in the United...

The adoption of alternative fuel vehicles (AFVs) has been regarded as one of the most important strategies to address the issues of energy dependence, air quality, and, more recently, climate change. Despite decades of effort, we still face daunting challenges to promote wider acceptance of AFVs...

The design and lifecycle cost model designs a motor vehicle to meet range and performance requirements specified by the modeler, and then calculates the initial retail cost and total lifecycle cost of the designed vehicle. The model can be used to investigate the relationship between the...

Using retrospective data collected from a survey of more than 200 State of California workers, including current, former, and non-telecommuters, this study analyzes the relationship between telecommuting and commute time, distance, and speed over the ten-year period from 1988 to 1998. We find...

Several travel indicators were compared between telecommuting (TC) days and non-telecommuting days for a sample of 72 center-based telecommuters in California. Distance traveled decreased significantly on TC days, with average reductions of 51 person-miles (58%) and 35 vehicle-miles (53%). When...

Since its initiation in the early 20th century, the federal transportation funding program has focused on highway construction for automobile travel. In the last few decades, public transportation has received 20% of federal resources, a significant share, but non-motorized modes such as...

Carsharing provides members access to a fleet of autos for short-term use throughout the day, reducing the need for one or more personal vehicles. Over ten years ago, carsharing operators began to appear in North America. Since 1994, a total of 40 programs have been deployed—28 are...

Beijing could be an attractive region to initiate a hydrogen infrastructure for transportation. Air quality is poor, oil imports are soaring, and there is a desire to introduce innovative responses for the 2008 Olympics. If Beijing were to proceed to build hydrogen infrastructure before and...

A considerable body of research on induced travel has emerged over the last several decades, and induced travel has been acknowledged by the U.S. Transportation Research Board and Environmental Protection Agency. This has brought renewed attention to the representation of induced travel in...

The science and technology of ultracapacitors are reviewed for a number of electrode materials, including carbon, mixed metal oxides, and conducting polymers. More work has been done using microporous carbons than with the other materials and most of the commercially available devices use carbon...