To more accurately predict hourly running stabilized link volumes for emissions modeling, a new method was recently developed that disaggregates the period-based model link volumes into hourly volumes using observed traffic count data and multivariate multiple regression (MMR). This paper...

This report documents changes to the methods and data in a recently revised version of the greenhouse-gas emissions model originally documented in Emissions of Greenhouse Gases from the Use of Transportation Fuels and Electricity, ANL/ESD/TM-22, Volumes 1 and 2, Center for Transportation...

The integration of innovative technologies with traditional modal options in transit oriented developments (TODs) may be the key to providing the kind of high-quality transit service that can effectively compete with the automobile in suburban transit corridors. The EasyConnect II project...

The study of temporal patterns of telecommuting is essential in understanding the adoption of telecommuting and, hence, the impacts of telecommuting on the demand for equipment and services as well as the demand for travel. This research examines, in the context of center-based telecommuting,...

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...