1,720,994 research outputs found
A Study Of Crowd Behavior In Emergency Tunnel Procedures
No full textIn the last years unfortunately some tragedies have
occurred inside tunnels (i.e. Mont Blanc Road Tunnel in 1999 and
others) causing many deaths and serious injuries for several people,
so a greater sensibility towards safety, both in terms of infrastructure
and devices but also in terms of people awareness, has been grown.
The authors propose to study the importance of the human
behavior and all the factors involving one’s choices during the
evacuation phase inside a long motorway tunnel.
In order to take into account all the criteria that affect the choices,
especially human factors typical of a PECS model, which involves
Physical, Emotional, Cognitive and Social behaviors, a multicriteria
analysis has been conducted, using Modeling and Simulation (M&S)
reproducing a decision network thanks to Saaty’s AHP (Analytic
Hierarchic Process).
This model is quite similar to the classical PECS models proposed
such as Adam Model, in which Adam, thanks to his attributes
and knowledge, tries to survive inside his world exploring it and
avoiding all the potential dangerous situations; in fact, the person
inside the tunnel, thanks to his/her physical, emotional, cognitive and
social attitudes (these ones not present in Adam’s world where he is
alone), has to manage how to survive from a fire or a smoke
intoxication reaching safety as soon as he can even sacrificing, at
least, an expensive good as a car is
Pool Logistics for Power Plant Service
No full textThe present study concerns a conceptual model to be
used for managing power plant service; the system is
devoted to support pool management by using
simulation as testing criteria and intelligent
optimization for alternative solution investigation
Design of Experiment and Monte Carlo Simulation as Support for Gas Turbine Powerplant Availability Estimation
No full textModeling And Simulation For Supporting Investigative Inquiries In The Jp And Ps Sector
No full textThe paper proposes the application of Virtual Reality and Simulation to support reconstruction of a crime scene in order to support Police investigations and judiciary analysis. The possibility of use M&S and VR Techniques for anti-terrorism investigations and repression are presented and discussed in the paper as well
as the potentials offered by Data Mining Techniques in monitoring contents of intercepted conversations and messages
Agent Directed HLA Simulation for Complex Supply Chain Modeling
No full textThe Authors outline a new modeling methodology designed to simulate a complex logistics network and to ensure interoperability through application of intelligent Agent High Level Architecture for Distributed Supply Chain Managemen
Two methodologies to support gas turbine power plant availabilty estimation: design of experiment and Montecarlo simulation
No full textMaintenance is an important aspect in order to guarantee the efficiency of industrial facilities. For power plants the
high availability ratios can be obtained only with preventive maintenance but the result costs increases rapidly. In order to
reduce the cost level of the maintenance activity, on-condition maintenance is carried out on an increasing subset of
components. Only using appropriate reliability models can identify the optimal mix between preventive and on-condition
maintenance. Some time the data required by such models are inadequate or missing and the performances of the implemented
system can fall quite rapidly. The authors propose an innovative approach based on a hierarchical Montecarlo simulator able to
estimate properly the power plant reliability and, at the same time, improve its performances by a fine-tuning of its parameters.
A real life case study is than presented and discussed, even with economical consideration
A System Dynamics Decision Cockpit For A Container Terminal: The Case Of Voltri Terminal Europe
No full textThe drastic changes in market features imposed in the last decades by market globalization and production delocalization, have determined the need for ports to quickly react to market change in order to capture and manage the increasing quantity of global freight. But because of the highly dynamic and stochastic context, ports have to adjust in real time their planning of work in the most efficient way. For instance, a ship’s delay or a truck’s strike can modify the operative scenario, consequently imposing to rescheduling the container terminal activities. In this context the system dynamics paradigm can usefully help in efficiently modeling the port activities in order to take the right decisions under different scenarios. More specifically the system dynamics model can be efficiently integrated with an ERP system in order to receive real time data, and then, through a suitable decision cockpit– which allows an easy management of huge amount of dynamic data - created with the system dynamics, carry out real time what-if analysis and then make the most appropriate decisions for a particular port context.
The paper presents the case of Voltri Terminal Europe, one of the biggest container terminal in the Mediterranean area. In particular the goal of the paper is to model, through the system dynamics approach, the functioning of VTE and to helps its management through an efficient decision cockpit, connected with an ERP system
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