In the current and future context, vehicles powered by alternative fuels are of increasing interest, being an option for the future zero-emission transport sector. In particular, hydrogen fuel cell vehicles (HFCVs), which represent the latest generation of electric vehicles, are spreading very rapidly in recent years. This revolutionary technology is powered by the chemical reaction that occurs between hydrogen and oxygen within fuel cells, rather than the typical combustion of fossil fuels that occurs in conventional engines. The issues related to safety and management of HFCVs connected risks must be thoroughly studied, especially in confined spaces, such as road tunnels, and indoor car parks.