It seems that transportation planners everywhere are looking for ways of reducing vehicle miles of travel (VMT) by automobile, even as citizens seem determined to drive more. The trend may be especially evident here in California where everyone seems to believe that use of cars is excessive,...

This research, sponsored by the Port Authority of New York and New Jersey, involved the development and application of a model of International Gateway Competition, to be used for purposes of airport demand forecasting and airline strategy assessment. The model, named ALIGATER (AirLine...

One of the challenges facing intermodal integration is that the planning framework needed for it lacks appropriate measures of level of service that cut across the modes involved and the connections between them. In this study we develop a framework and a set of metrics of level of service in a...

The State of California will face an important transportation investment decision during the coming decade. With ever increasing demands for intercity travel in the entire corridor between Sacramento and San Diego, the State will need to consider the options available for expanding the capacity...

Changes in the U.S. domestic airline route system have increased competition between international gateways. To assist in understanding this phenomenon, a system of models that predicts airline passenger flows resulting from different airline gateway hubbing strategies has been developed. The...

The Intermodal Surface Transportation Efficiency Act of 1991, calls for closer coordination of intermodal transportation as a method to solve many of today’s transportation problems. The passage of this Act has prompted many engineers and planners to re-assess the potential benefits of...

This report attempts to derive a more accurate economic model to describe the supply and cost mechanisms that influence the market for traffic information. It first gives a history of the traffic information market, its economies-of-scale, and its potential for future development.e history of...