This paper summarizes the literature on the effectiveness of employee ridesharing programs. It provides the conceptual and empirical basis for our evaluation of AQMD's mandatory ridesharing ordinance, Regulation XV. We review the literature on the following topics: 1) employee ridesharing...

Regulation XV of the South Coast Air Quality Management District in Southern California requires all work sites at which there are 100 or more employees to implement a ridesharing program by which the organization's "average vehicle ridership" is intended to be increased to a specified target...

Trip reduction policies are increasingly utilized in U.S. metropolitan areas to address congestion and air quality problems. These policies typically focus on the journey to work and are aimed at reducing the amount of drive-alone commuting by providing transit and ride-sharing incentives....

Americans often look to Southern California as a place where lifestyle trends are born. Now, ironically, the land that has long glorified the car culture is galvanizing commuting behavior and encouraging abstinence from the once-respectable custom of solo driving. The catalyst for this...

Traffic congestion is a disruptive fact of urban life. It inflicts delays and frustrations in virtually all major cities in the world, new or old, rich or poor. Although many countermeasures have been tried, it is hard to name a city in which there is much satisfaction with the existing state of...

This paper presents an empirical analysis of subcenter growth. We develop a series of hypotheses based on the theoretical concepts that have been proposed as explanations for the emergence and growth of subcenters. We then conduct tests of these hypotheses using 1970-80 data from the Los Angeles...

We investigate employment subcenters in the Los Angeles region using 1980 Census journey-to-work 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 with...

With this first issue of Access, we at the University of California Transportation Center seek to introduce our research to a diverse community of readers. By presenting our findings in a nontechnical format, we hope to make them accessible to professionals in various fields and to citizens who...

The precise relationship between transportation and land use continues to elude us. It seems self-evident that transportation facilities and services have enormous effects on land use patterns. We've all observed developments occur around freeway interchanges, and we all know the history of...