We consider finding static yet robust recurring milk-run tours while dynamically routing the vehicle between site visits. The network arcs experience recurrent congestion, leading to stochastic and time-dependent travel times. Based on vehicle location, time of day, and current and projected network congestion states, we generate dynamic routing policies (DRP) for every pair of sites using stoc...

For the intensively studied vehicle routing problem (VRP), two real-life restrictions have received only minor attention in the VRP-literature: traffic congestion and driving hours regulations. Traffic congestion causes late arrivals at customers and long travel times resulting in large transport costs. To account for traffic congestion, time-dependent travel times should be considered when con...

Fiscal instruments are potentially among the most effective, and cost-effective, options for addressing externalities related to poor air quality, urban road congestion, and greenhouse gases. This paper takes a case study, focused on Mauritius (a pioneer in the use of green taxes) to illustrate how existing taxes, especially on fuels and vehicles, could be reformed to better address these exter...

This paper develops a spatial general equilibrium model to explore the endogenous relations between urban sprawl, job decentralization, and traffic congestion, and then compare the efficiency and welfare impacts of anti-congestion policies. Results suggest that congestion spurs firms to decentralize and agglomerate away from the urban center, with households living more centrally. A congestion-...

Traffic congestion continues to be a persistent problem throughout the world. As vehicle-to-vehicle communication develops, there is an opportunity of using cooperation among close proximity vehicles to tackle the congestion problem. The intuition is that if vehicles could cooperate opportunistically when they come close enough to each other, they could, in effect, spread themselves out among a...

Vehicular ad hoc network (VANET) is one of the most modern and promising technologies for revolutionizing the transportation system where vehicles can communicate via a wireless medium. The IEEE 802.11p includes communication between vehicles (V2V) and between vehicle and roadside infrastructure (V2I). VANET provide the communication framework for dissemination of safety critical message such a...

Cooperative vehicle safety systems rely on vehicular networking for vehicle tracking and collision warning. The most pressing challenge in such systems is to maintain real-time tracking accuracy while avoiding network failure and congestion. In vehicular networking, vehicle density is changing rapidly. This unique characteristic can cause network disconnection or channel congestion. Moreover, t...

Vehicles traffic congestion on the road is reflected as delays while traveling. This congestion has a number of negative effects such as energy consumption, wastage of time and increased tailpipes emission of idling vehicles probably bad for our health. Vehicular congestion has become the serious problem and it is getting worse day by day as the growth of the vehicles significantly increased. I...

The Urban Mobility Report (UMR) is a widely-cited study that quantifies and monetizes (measures in monetary units) traffic congestion costs in U.S. metropolitan regions. This report critically examines the UMR's assumptions and methods. The UMR reflects an older planning paradigm which assumes that " transportation " means automobile travel, and so evaluates transport system performance based p...

Many urban areas face traffic congestion. Automatic traffic management systems and congestion pricing are getting prominence in recent research. An important stage in such systems is lane prediction and on-road self-positioning. We introduce a novel problem of vehicle self-positioning which involves predicting the number of lanes on the road and localizing the vehicle within those lanes, using ...