As the provision of roads has become market driven, many intriguing issues have emerged, such as the strategic interactions among private firms in determining road supply and pricing in a network and, more importantly, the resulting inefficiencies when competition substitutes for government...

The purpose of this paper is three fold: First, it demonstrates the non-convergence of the bisection method proposed in the literature for the trial-and-error implementation of the marginal-cost pricing in the absence of a demand function. Second, it provides a modified version of the bisection...

Speed limits are usually imposed on roads in an attempt to enhance safety and sometimes serve the purpose of reducing fuel consumption and vehicular emissions as well. Most previous studies up to date focus on investigation of the effects of speed limits from a local perspective, while...

The Renewable Identification Number (RIN) system is a tracking mechanism that enforces the U.S. Renewable Fuel Standard by monitoring obligated parties’ compliance with the biofuel consumption mandates. This paper incorporates the RIN system into the design of a biofuel supply chain that...

A system of tradable travel credits is explored in a general network with homogeneous travelers. A social planner is assumed to initially distribute a certain number of travel credits to all eligible travelers, and then there are link-specific charges to travelers using that link. Free trading...

Morning commuters choose their departure times based on a combination of factors—the chances of running into bottleneck congestion, the likely schedule delays, and parking space availability. This study investigates the morning commute problem with both bottleneck congestion and parking space...

The objective of this paper is to enhance the insights into commuters' travel choice behaviors in a competitive railway/highway system with continuum park-and-ride services along a travel corridor. It is assumed that parking charges gradually decrease from the city center to the corridor...

Private provision of public roads through build-operate-transfer (BOT) contracts is increasing around the world. This paper investigates the properties of Pareto-efficient BOT contracts using a bi-objective programming approach under perfect information. Under certain conventional assumptions,...

This paper presents a general framework and a rigorous approach for the quantitative analysis of the behavior of equilibrium flows with elastic demand when the problem is subjected to perturbations in network characteristics. Explicit expressions of the derivatives of the equilibrium solutions...

Dispersion of traffic flow on urban road segments is often described by some typical statistical models such as the normal distribution model and the geometric distribution model. These probability-based models can fit traffic flow well under ideal physical environments but may not work...