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...

Welfare-to-work transportation programs are predicated on a conceptualization of the spatial mismatch hypothesis that focuses on the central-city residential locations of welfare participants, rapidly expanding job opportunities in the suburbs, and the long commutes needed to connect them....

Numerous scholars assert that welfare recipients face a mismatch between their residential location in inner-city or rural areas where they live far from employment opportunities located in the suburbs. However, the findings of this study bring into question the wholesale application of the...

Welfare-to-work transportation programs are permissed on a conceptualization of the spatial mismatch hypothesis that focuses on the physical seperation between the central city locations of welfare participants, rapidly expanding job opportunities in the suburbs, and the long commutes needed to...

The responsibility for developing transportation programs for welfare participants spans multiple public agencies. Consequently, federal funding programs require that agencies work together to develop a coordinated response to addressing the transportation needs of welfare participants. Based on...

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...

Today’s teens are members of the first generation to have never known a world without instantaneous and nearly ubiquitous mobile phone access. They also must surmount greater hurdles to driver’s licensing than any previous generation faced. And they are struggling to transition...

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...