Monochrome London Underground at a Platform

Photorealistic black-and-white photograph of a London Underground train at a station platform. Emphasize urban transit with iconic roundel signage on a column, tiled walls, and a map in the background. The train sits at the platform edge with doors closed, while no passengers are visible to keep focus on the train and station architecture. Compose a low, platform-edge perspective with converging lines of rails and ceiling beams receding into the distance. Use high-contrast monochrome lighting from fluorescent tubes to create stark highlights and deep shadows on the metal carriage and surrounding architecture. Add a subtle film-grain texture and a gentle vignette to evoke timeless street photography. Include architectural details: striped platform edge, metal columns, and staircases to concourses. The mood should feel cinematic, documentary, and timeless, capturing the rhythm and scale of urban transit.