SACCO , Nicola

The optimal design of traffic light settings assumes in general that all the input parameters are known and constant for each design reference period, neglecting the effects of the uncertainty of the incoming flows or of other intersection characteristics, such as the saturation flows or the lost time. Responsive traffic plans only partially...

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The problem of optimally routing a class of guided vehicles on an urban traffic network is considered in this paper. The guided vehicles give their requests in terms of origin, destination, and time window, and the control system returns to each of them the start time and the path to be followed, as provided by the solution of an original...

Petri nets and railway networks are considered in this paper with the aim of providing a comprehensive model to be used for analysis, optimisation, and control purposes. The overall model consists of two interconnected Petri nets that represent, respectively, the physical part of the network (stations, blocks, crossovers, tracks, and so on, as...

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The problem of optimizing traffic light phases dates back to the fifties. Since there, many solutions for different network configurations (isolated intersections, coordinated intersections, and so on) and different modeling and solution approaches (empirical models, queue theory approaches, mathematical programming models, etc.) have been...

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In recent decades, technologies that can lead to fully automated driving have had a rapid development. In this framework, 'road transport automation' can potentially result in significant changes to the operation of road systems throughout the world. It is impossible to foresee how long it will take to realize such potential changes, because...

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In this paper, a class of hybrid Petri nets is shown to provide a valuable model of urban networks of signalised intersections. In fact, such networks can be fruitfully considered to be hybrid systems, where the vehicle flow behaviour is represented by means of a time-driven model, and the traffic light dynamics is represented by an...

In the last decades, the continuous growth of the containerized freight transportation has led to a fast development of container terminals, that, as a consequence, need keeping the handling equipment efficient and tech-nologically advanced. In this framework, the investments for enhancing the handling throughput, and for reducing the...

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Due to their characteristics, freeways appear to be ideal sites for testing new traffic regulation strategies, based on continuously improved information systems. In this framework, a particular consideration has recently been devoted to the application of neural networks (NNs) to freeway supervision and control. In this paper, the solution to...

In such a framework, this paper is intended to define a methodology for understanding the costs of the "whole damage" deriving from the "chain-effect" caused by a critical infrastructure problem. In doing so, a Petri Net (PN) modelling approach for distributed networks will be proposed.