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,...

The accurate prediction of rutting development is an essential element for the efficient management of pavement systems. In addition, progression models of highway pavement rutting can be used to study the effects of different loading levels, and thus in allocating cost responsibilities to...

Travel demand models focus on explaining how much individuals actually travel but offer no insight into how much individuals think they travel. The authors propose that the latter is an important determinant of traveler behavior, and that actual mobility is refracted through a variety of filters...

In this article, we describe the development of atransit trip planner(TTP) for mobile devicescalled Transitr, and evaluate its performance. The system predicts the shortest paths betweenany two points in the transit network using real-time information provided by a third party busarrival...

Communities and countries experiencing poverty, high unemployment, and economic reliance on tobacco growing are vulnerable to predatory tobacco industry behaviour. This analysis presents a cross-national survey of social disruption in tobacco farming to illustrate the association between tobacco...

Objective: To describe how the transnational tobacco industry has collaborated with local Asian tobacco monopolies and companies to promote a scientific and regulatory agenda. Methods: Analysis of previously secret tobacco industry documents. Results: Transnational tobacco companies began...