This image depicts the interior of a double-deck RER commuter train, operating within the transit network serving Bussy-Saint-Georges, France

This image depicts the interior of a double-deck RER commuter train, operating within the transit network serving Bussy-Saint-Georges, France. The vantage point is from the lower deck, looking upward towards the upper deck and across a segment of the lower deck. The train car features a light grey/green ceiling with several circular recessed lights and parallel fluorescent strip lights along the upper level. Walls are predominantly light grey/white. A large white bulkhead partially separates the lower and upper levels in the foreground. On the left of this bulkhead, a white sign with a red "No Smoking" symbol and a transit line map are visible. A yellow and black warning sign with pictograms is affixed to the right side of the bulkhead. A set of six stairs, featuring white risers, dark grey treads with metallic anti-slip strips, and grey metal handrails on both sides, ascends from the lower to the upper level on the right. On the upper deck, visible through the central opening, a Black female in her late 20s to 30s, with dreadlocks, is seated in a black leather jacket and blue jeans, smiling and looking towards the right. Behind her, another passenger is partially visible, draped in a light-colored blanket, with a black rolling suitcase on the floor nearby. On the lower deck, visible beneath the bulkhead and to the left, multiple passengers are seated. One man with dark hair and glasses is seated, looking down. Adjacent to him, a woman with reddish-orange hair and glasses, wearing a patterned scarf, is seated. Closer to the foreground, two individuals are seated, one with dark hair, glasses, and a dark jacket, appearing to interact with the other. The seats are upholstered in either red or orange fabric, both featuring light-colored, organic or floral patterns. The floor is dark grey and textured.