The surge of road pricing projects in the U.S. and around the globe over the past fifteen years has been enabled by a set of new communication and transportation technologies. There is currently a wide array of technical configurations ranging from systems based on “tried and true” shortrange radio communications to experimental systems relying on global positioning satellites. These technologi...

This paper deals with the following question associated with congestion pricing in a general network with either fixed or elastic travel demand: what is the maximum efficiency loss of a general second-best pricing scheme due to inexact marginal-cost pricing in comparison with the first-best pricing or system optimum case? A formal answer to this question is provided by establishing an inefficie...

Pricing of roadways opens doors for infrastructure financing, and congestion pricing seeks to address inefficiencies in roadway operations. This paper takes a cost-benefit approach to illuminate how the costs of infrastructure can be offset via pricing, while ascertaining the welfare impacts of flat-toll, standard congestion pricing, and credit-based congestion pricing policies. While most road...

Costs associated with traffic externalities such as congestion, air pollution, noise, safety, etcetera are becoming “unbearable”. The Braess paradox shows that combating congestion by adding infrastructure may not improve traffic conditions, and geographical and/or financial constraints may not allow 5 infrastructure expansion. Road pricing presents an alternative to combat the mentioned extern...

We seek to better understand the scheduling of activities in time through a dynamic model of commuting with congestion, in which workers care solely about leisure and consumption. Implicit preferences for the timing of the commute form endogenously due to concave preferences and temporal agglomeration economies. Equilibrium exists uniquely and is indistinguishable from that of a generalized ver...

Traditional approaches to multipath routing ignore the economic incentives necessary in aligning both networks and users towards a common goal. While theory suggests congestion pricing can be used to maximize social welfare, even within such a framework we have no consistent method for evaluating, constructing and disseminating paths. Our research focuses on building on existing congestion pric...

The problem of sharing bandwidth in a communication network has been the focus of much recent research aimed at guaranteeing an appropriate quality of service to users. This is particularly challenging in an environment with a great diversity of users and applications, which makes it difficult, if not impossible, to tightly constrain user attributes and requirements. This motivates shifting the...

We consider a service provider (SP) who provides access to a communication network or some other form of on-line services. Users access the network and initiate calls that belong to a set of diverse service classes, diiering in resource requirements, demand pattern, and call duration. The SP charges a fee per call, which can depend on the current congestion level, and which aaects users' demand...