Safety is another key factor. In fact, railway interiors must be designed with safety regulations in mind, first and foremost those included in the TSI standard, integrating appropriate alarm systems, emergency signaling and first response systems into the 'furnishings.

Consideration must also be given to the customization of interiors, which is an important distinguishing feature that rail companies adopt by choosing unique colors, furnishings and designs to give their trains a recognizable identity. In conclusion, the creation of interiors in the railway industry is a complex process that requires paying attention to numerous factors, including ergonomics, materials, lighting, additional services and safety, while keeping passenger travel comfort at the center of the design.