Abstract
The transportation of hazardous materials (HAZMAT) on congested motorways and accident management are areas of increasing interest for public safety and environmental awareness. This paper proposes the structure of a Decision Support System (DSS) for monitoring HAZMAT vehicles, aiming at solving two problems: assessing the risk induced on the population by HAZMAT vehicles travelling in the motorways and selecting the optimal routes and restoration procedures for the heavy vehicles. Two main modules of the DSS are specified: the Risk Assessment Component and the simulation module. In order to model and simulate the traffic network, a Coloured Timed Petri Net model is employed and a DSS prototype is described and applied to a stretch of a motorway in the North-East of Italy. The proposed DSS allows estimating in real time the risk of HAZMAT transportation, by taking into account the type of transported hazardous material, the traffic and the density of population living close to the motorway.
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