In this work, we investigate the potential benefits of introducing relay stations in the round-trip ridesharing problem. In the classical round-trip ridesharing system, the pick-up and drop-off locations for the rider don’t differ from his origin and destination, respectively, for both outgoing and return trips. This system is straightforward but inflexible and unbalanced as it puts the whole d...

The importance of electric vehicles has increased steadily in recent years. As battery capacities increase and charging stations for electric vehicles become more widespread, long-distance routes that require charging stops are starting to become feasible. While route planning problems for electric vehicles are well-studied, little research has focused on incorporating charging stops. In this t...

Compared to conventional cars, electric vehicles still suffer from a considerably shorter cruising range. Combined with the sparsity of battery loading stations, the complete transition to E-mobility still seems a long way to go. In this paper, we consider the problem of placing as few loading stations as possible such that on any shortest path there are enough to guarantee sufficient energy su...

With respect to the planning problems of electric vehicle charging stations in the urban area, the paper presents a planning model which considers the road network structure, vehicle flow information, distribution system structure and capacity constraints, etc. Under the relative constraints of distribution network, the model selects the station sites and plug-in locations with the objective of...

In this article, we investigate the cost-effective 5G-enabled vehicular networks to support emerging vehicular applications, such as autonomous driving, in-car infotainment and location-based road services. To this end, self-sustaining caching stations (SCSs) are introduced to liberate on-road base stations from the constraints of power lines and wired backhauls. Specifically, the cache-enabled...

Motivated by the increasing popularity of electric vehicles (EV) and a lack of charging stations in the road network, we study the shortest path hitting set (SPHS) problem. Roughly speaking, given an input graph G, the goal is to compute a small-size subset H of vertices of G such that by placing charging stations at vertices in H, every shortest path in G becomes EV-feasible, i.e., an EV can t...

In this paper, we conduct a systematic study of human-initiated cascading failures in three critical inter-dependent societal infrastructures due to behavioral adaptations in response to a crisis. We focus on three closely coupled socio-technical networks here: (i) cellular and mesh networks, (ii) transportation networks and (iii) mobile call networks. In crises, changes in individual behaviors...

Road transportation networks are a segment of society’s critical infrastructure particularly susceptible to service disruptions. Traffic incidents disrupt road networks by producing blockages and increasing travel times, creating significant impacts during emergency events such as evacuations. For this reason, it is extremely important to incorporate traffic incidents in evacuation planning mod...

A prospective study was carried out over the 10 years 1978-87 to determine the incidence and implications of sudden death in road users--that is, drivers, pedestrians, cyclists, and motorcyclists. During the study period 30,000 patients were seen in the same accident and emergency departments of East Berkshire after road traffic incidents or accidents, of whom 267 either were brought in dead or...

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