Transportation infrastructures are often of substantial dimensions, and are crowded with thousands of people passing through them every day, representing specific challenges for system designers due to the fact that these spaces are furthermore characterised by a multitude of requirements, in accordance with the specific activities performed within them. Examples of such space usage include passenger terminals, public areas, retail areas, control systems (electronic equipment), catering services, administrative offices and luggage storage. The HVAC design process for these areas must take into account the high energy consumptions involved, as well as the need for flexibility due to the continuous expansion resulting from ever-increasing volumes of traffic. In addition to this, specific safety requirements render the design process even more challenging. Aermec’s customers receive experience from a partner offering expertise acquired over many years within the heating, cooling and air treatment of prestigious transportation infrastructures, with a range of innovative energy-efficient solutions offering well-being to travellers from all over the world.