Consider the problem that consists in maximizing the revenue generated by tolls set on a subset of arcs of a transportation network, and where origin-destination flows are assigned to shortest paths with respect to the sum of tolls and initial costs. In this work, we address the instance where toll arcs must be connected, as occurs on highways. Our main results are concerned with the theoretica...

Traditional public transport is evolving towards more flexible services and operation modes in order to better serve the needs of the population, capture additional demand, and increase its profitability. The transportation system that we study integrates traditional bus transportation and on-demand services. Demand-responsive lines provide a classical, scheduled, transportation service among a...

The purpose of this paper is to solve the stochastic demand for unbalanced transport problem using heuristic algorithms obtain optimum solution, by minimizing costs transporting gasoline product Oil Products Distribution Company Iraqi Ministry Oil. most important conclusions that were reached are results prove possibility solving random transportation when uncertain programming model. obvious f...

Today, companies need to make use of appropriate patterns such as supply chain management system to gain and preserve a position in competitive world-wide market. Supply chain is a large scaled network consists of suppliers, manufacturers, warehouses, retailers and final customers which are in coordination with each other in order to transform products from raw materials into finished goods wit...

An analysis was conducted to examine the market visibility of small aircraft as a transportation mode in competition with automobile and scheduled commercial air travel by estimating the pool of users that would potentially switch on-demand air travel due to cost/time saving. These new aircraft greatly increase the practicality of regional aircraft as a transportation mode that can avoid the co...

Considerably less research has been done on modeling freight demand with disaggregate discrete models than on modeling passenger demand. The principal reason for this imbalance is the lack of freight demand data. Freight demand characteristics are expensive to obtain and are sometimes confidential. This paper analyzes the freight demand characteristics that drive modal choice by means of a larg...

We study the equilibrium quality under user uncertainty in a multi-commodity selfish routing game with many types of users, where each user type experiences a different level of uncertainty. We consider a new model of uncertainty where each user over or under-estimates their congestion costs by a multiplicative constant. We present a variety of theoretical results showing that when users under-...

Activity-based models of travel demand have received considerable attention in transportation planning and forecasting over the last few decades. FEATHERS (The Forecasting Evolutionary Activity-Travel of Households and their Environmental Repercussions), developed by the Transportation Research Institute of Hasselt University, Belgium, is a micro-simulation framework developed to facilitate the...