Nicholas J. Klein

Immigrants and Travel Demand in the United States: Implications for Transportation Policy and Future Research

Immigrants account for a majority of recent urban population growth in the United States, and for much economic growth as well. This is expected to continue for the next several decades. The foreign-born are much more likely to use transit, carpool, walk, and bicycle, particularly in their first few years of living in the United States. These trends represent challenges and opportunities for transportation and land use planners to increase the environmental sustainability of population growth, use existing transportation systems to their maximum efficiency, and support economic development. But doing so depends on anticipating the travel demands of varying immigrant groups, and those demands in turn depend on their employment and residential location choices. The authors present the most current data available on these trends, summarize research literature, and identify the major research questions needing answers to understand how to accommodate the travel demands of immigration-driven population growth.

Remembrance of Cars and Buses Past: How Prior Life Experiences Influence Travel:

Does living in a neighborhood with high-quality public transit influence travel behavior later in life, even if you move to a neighborhood with worse transit service? To test this, we construct residential histories of individuals using decades of data from the Panel Study of Income Dynamics. We find that past experiences shape transportation futures. Exposure to transit during young adulthood in particular is associated with an auto-light lifestyle and greater transit usage later in life. This research suggests a long-term benefit for encouraging transit at younger ages to foster a “transit habit.”

Firm Births, Access to Transit, and Agglomeration in Portland, Oregon, and Dallas, Texas

The formation of new firms is one process by which economies grow and innovate. Public transportation services may facilitate the birth of new firms by both providing better access and causing local densification that leads to agglomeration economies. In this study firm births are investigated to determine how they are related to newly provided light rail transit service in two metropolitan areas in the United States. A geocoded time-series database of firm establishments in Dallas, Texas, and Portland, Oregon, from 1991 through 2008 is used. The data set allows the study of spatial patterns by industry and the analysis of the relationship of firm births to rail station proximity, accessibility, and local agglomeration while controlling for a number of potentially confounding factors. Positive, large, and statistically significant relationships are found in Portland between rail station proximity and firm births. The rail proximity results in Dallas are also generally positive, though not as large; this finding is consistent with the smaller accessibility value of rail in Dallas, as well as policies encouraging commercial development near rail in Portland. Rail proximity increases firm births across almost all industrial sectors in both of these metropolitan areas when controlling for the negative effects on firm births of local own-industry employment. Local block-level agglomeration and generalized accessibility are also highly significant but appear to work independently of rail access. These results imply that passenger rail service increases firm births near rail stations by expanding access to the labor market but not by increasing information spillovers or increasing face-to-face interactions.

More than just a bus ride: The role of perceptions in travel behaviour

The purpose of this article is to add another dimension to our understanding of travel behaviour by highlighting how individual decisions about travel are simultaneously influenced by both rational, calculable metrics of the transportation system but also by socially constructed, context-specific perceptions that travellers hold about the travel modes themselves. The context for this study is a rapid transformation of the market for intercity buses in the Northeast United States. In the past 15 years, new entrants have transformed a humdrum industry into a dynamic sector of the intercity travel market. The new entrants, curbside buses, have largely shunned traditional bus terminals in favour of picking up and dropping off bus passengers on city streets. Ridership has steadily increased, and these new bus companies have expanded operations throughout the country. Drawing on a series of focus groups with intercity bus passengers, I describe how two sets of factors drive intercity travellers’ choice to travel onboard the new intercity buses. First, the new companies offer operational and economic advantages. Second, and surprisingly, focus group participants have different perceptions of the new bus companies than the old – and these perceptions appear to be influencing their travel decisions.