train moving along a track at an underground station

train moving along a track at an underground station. The train is mostly silver with red accents and red polka dots. People can be seen inside the train through the windows. The train tracks are surrounded by various pieces of equipment and there is a gray box sitting near the tracks in the foreground. The station has an industrial appearance with exposed pipes and structural elements. A digital clock on a pillar in the background reads "21:23:12".