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In urban areas the demand for public transportation is constantly growing. Underground railway systems overcome the problem of limited space on the ground and are therefore one of the most powerful systems in urban public transportation. These facilities can be very complex and are used by a large amount of passengers. Therefore, it is important to maintain the safety for people and buildings. Especially in the case of fire or arson attack.
This paper focusses on a fire scenario in a complex subway station for different weather conditions. The purpose is to identify the influences of different weather conditions on the smoke spread and the ability of self-rescue in case of a burning luggage.
The evaluation of the fire simulations will focus on toxicity and visibility taking into account the FED concept.
A lot of research has been done in the past for the case of fire in underground structures. The focus of research had been fires in rail or road tunnels. But with the view on underground stations, research is not as profound since experiments can only be done during the operating breaks without leading to any structural damage. Hence, there have been only some numerical investigation on fictive and existing stations. A lot of research in the ventilation of subways and tunnels has been done in the past. Also a combination of different weather conditions has to been taken into account.
In this research an existing underground station for different weather conditions is considered. To validate the results of the simulation, the research consists of an experimental and numerical part. The aim is to identify the impact of different weather conditions on a specific fire scenario and the corresponding escape routes.