Theories of relationships between land use and transportation, and the empirical research conducted to test these relationships are reviewed. Recent empirical research seldom supports theoretical expectations. These results are explained by the changes in urban structure that have occurred over...

We investigate employment subcenters in the Los Angeles region using’1980 Census journey-towork data. A simple subcenter definition is used, based solely on gross employment density and total employment. We find a surprising dominance of downtown Los Angeles and three large subcenters...

Consider a consumer who can choose to travel on a congestible fast mode or on a congestible slow mode. Users who most value time will use the fast mode. A toll on the slow mode can induce some people who initially use that mode to switch to the fast mode. A toll on the slow mode with revenue not...

The major goal of travel behavior research is to understand and model the processes by which people make decisions regarding activities and travel. These decisions, including whether, when, where, and with whom to participate in particular activities, and the choice of mode and route, are...

Employment and the journey to work have long been a focus of transportation study. Although today, the work trip accounts for a much smaller share of total trips than it did a few decades ago, there are several reasons why this subject deserves our continued attention. In planning for the...

The nation is about to enter into the second stage of welfare reform with its federal reauthorization within the upcoming year. The first stage of welfare reform started the enactment of the 1996 Personal Responsibility and Work Opportunity Act (PRWORA), which transformed welfare from an income...

This paper presents findings from a recent study on roadway design preferences among pedestrians, drivers, bicyclists, and public transit users along a major urban corridor in the East San Francisco Bay Area.  Sponsored by the California DOT, the research focused on exploring design...

This paper reports on research conducted by the Safe Transportation Research and Education Center and sponsored by the California Department of Transportation (“Caltransâ€) to establish performance measures for pedestrian and bicycle safety and mobility along urban arterials. Although...

Growing interest in sustainable transportation systems and livable communities has created a need for more complete measures of pedestrian travel. Yet, many performance measures do not account for short pedestrian movements, such as walking between stores in a shopping district, walking from a...

High octane gasolines, includang "premium" and midgrade, steadily gained market share in the United States during the 1980s, increasing from 12% of the total gasohne market in 1983 to 15% in 1985 and 30% in 1989. This 18% increase in market share represents an aggregate revenue transfer from...