We have been collaborating in a panel study of commuter behavior in southern California which has been running since winter 1990. We were interested in setting up a panel so that we could study the dynamics of commuting behavior, especially in a situation where the environment was changing...

In the United States, federal funding for public transit often accounts for a large proportion of a local agency's budget, especially for capital investments. For this reason, local governments can be expected to plan a portfolio of projects that maximize federal contributions. This study...

Using two years of crash and average annual daily traffic data we examine the locations and conditions linked to truck-involved crashes (accidents). A binomial logit model is used to describe how the probability that a crash involves a truck is a function of the percentage of annual average...

1998 will be a big year for both automakers and clean-air advocates. In less than three years, the seven largest car sellers in California must sell zero-emission vehicles (ZEVs) - 2 percent of their sales of vehicles under 3750 lbs loaded weight. Given the size of the current market, that's...

Every year, Americans drivers spend hundreds of billions of dollars on highway transportation. They pay for vehicles, maintenance, repair, fuel, lubricants, tires, parts, insurance, parking, tolls, registration, fees, and other items. These expenditures buy Americans considerable personal...

A structural model is used to explain activity interactions between heads of households and, in so doing, to explain household demand for travel. The model attempts to capture links between activity participation and associated derived travel, links between activities performed by male and...

The January 17, 1994 Northridge Earthquake damaged four major freeways in the Los Angeles area, creating the prospect of gridlock in the nation's prototypical automobile city. This paper examines the effect of the transportation damage on business activity. Using survey responses from 559 firms...

Using micro data from the US Census, this paper tests the importance of the spatial isolation of minority and poverty households for youth employment in the largest US metropolitan areas. We first estimate a model relating youth employment probabilities to individual and family characteristics,...