Local area freight networks (LANs) are used to collect and distribute freight within metropolitan regions. Focusing on common carriers, this paper classifies LAN topologies, then shows how the optimal topology depends on demand characteristics. Continuous space approximations are used to analyze...

It is a truism repeated countless times in the course of a transportation professional's career - "Travel is a derived demand" - that is, derived from the demand for spatially separated activities. Belief in this truism underlies a number of transportation policies designed to reduce motorized...

lmprovements m accesstbthty are increasingly suggested as strategies leading to a reduction in vehicular travel, congeshon, pollution and their related impacts This approach assumes that individuals, if offered an opportunity, are likely to reduce their travel It also assumes that...

Using census block groups data on socio-demographics, land use, and travel behavior, we test the cutoffs suggested in the literature for trustworthy estimates and hypothesis testing statistics, and evaluate the efficacy of deleting observations as an approach to improving multivariate normality,...

This paper investigates the importance of attitudinal and lifestyle variables to residential neighborhood choice for 492 residents of three San Francisco Bay Area neighborhoods. One neighborhood, North San Francisco (N=155), was classified as traditional, whereas the other two, Concord (N=165)...

Telecommuting, which is the performance of work at home or at a center close to home using telecommunications, has attracted growing interest among planners and researchers as a strategy for reducing traveldemand. This paper investigates the potential of telecommuting as a trip reduction...

To better understand how road congestion adversely affects trucking operations, we surveyed approximately 1200 managers of all types of trucking companies operating in California. More than 80% of these managers consider traffic congestion on freeways and surface streets to be either a "somewhat...

Binary designation of a residential neighbourhood as either traditional or suburban is a distortion of reality, since a location may have some characteristics of both types and since residents in different parts of the neighbonrhood may perceive its character differently. This paper presents and...

Freight transportation plays a vital role in the economy of the nation and the state of California in particular. The value of total freight shipments originating in California in 1997 is estimated $638.5 billion, 10.6 percent of all US shipments by value. This represents 706.5 million tons of...

Modern panel surveys frequently suffer from high and likely non-ignorable attrition, and transportation surveys suffer from poor travel time estimates. This paper examines new methods for adjusting forecasts and model estimates to account for these problems. The methods we describe are...