Transportation agencies spend billions of dollars annually on managing a wide range of assets to meet public, legislative, and agency expectations. These assets vary from the physical transportation infrastructure, to equipment, material stocks, data and information, and human resources. The...

The evaluation of transportation projects has traditionally been carried out in the context of economic efficiency in terms of savings in travel time, vehicle operating cost, and safety. The broader long-term effects on economic development (i.e., job, income and business growth) are a concern...

Airport security screening, and the amount of time it costs travelers, has been a persistent concern to travelers, airport authorities, and airlines – particularly in recent years where changes in perceived threats have resulted in changes in security procedures that have caused great...

Time-constant assumptions in discrete-response heterogeneity models can often be violated. To address this, a time-varying heterogeneity approach to model unobserved heterogeneity in ordered response data is considered. A Markov switching random parameters structure (which accounts for...

<title/> The dynamic characteristics of automobile demand are critical for national economic and revenue predictions. Automobile demand and ownership level forecasts are also the basis for travel demand models, land-use-transport interaction models, and transport policies and regulations. In this...

One of the key aspects of graduated driver licensing programs is the new-driver experience gained in the presence of a guardian (a person providing mandatory supervision from the passenger seat). However, the effect that this guardian-supervising practice has on adolescent drivers’...

The level of service (LOS) concept in the Highway Capacity Manual has been used as a qualitative measure representing freeway operational conditions for over 35 years. One key element that has not been adequately addressed is how road users perceive LOS. This exploratory research examines...

This paper presents an empirical analysis of the statistical bias resulting from the endogeniety of vehicle specific attributes in econometric models of household vehicle utilization. Using data from a recent U.S. household survey, both corrected and uncorrected vehicle utilization models are...