Modelling and Performance Evaluation of Railway transport Systems using P-timed Petri Nets

摘要

The regular increase in the number of passengers makes the management of transportation systems more and more complex. Railway transport requires specific needs. Indeed, many decision and optimization problems occur from the planning phase to the implementation phase. Railway transport networks can be considered as discrete event systems with time constraints. The time factor is a critical parameter, since it includes dates and schedules to be respected in order to avoid overlaps, delays and collisions between trains. The uncertainties affect the service and the availability of transportation resources and, consequently, the planned transport schedule. Petri nets have been recognized as powerful modelling and analysis tools for discrete event systems with time constraints. Consequently, they are suitable for railway transport systems. This article is devoted to the modelling, analysis and performance evaluation of the railway transport network system of the Sahel Tunisia in order to help operators to design efficient and robust schedules.