The risk assessment of liquefied natural gas (LNG) transportation routes has raised researchers' concerns in recent years, which is a group multi-criteria decision-making (GMCDM) problems that involves experts' opinions from different fields. To improve the effectiveness evaluating process, this paper proposes method to recognize potential risks and selects best LNG route. Firstly, authors cons...

This work presents an algorithm for the optimization of urban traffic flow that computes the vehicle routes and traffic lights timing in real time. The optimization procedure uses a genetic algorithm whose fitness function consists of a high-level Petri net model of the urban traffic flow, which simulation results in the fitness value to be used. The outcome of this work is the optimization of ...

total VKT (2). In developed countries, freight road transport continues to grow at a faster rate than the gross domestic product (3). This growth in commercial vehicle activity is increasing preexisting concerns over the associated negative externalities of urban freight movements. These externalities include greenhouse gases, air pollution, safety, and congestion and have been estimated to be ...