A safety poster inside a Tokyo Metro station warns passengers not to rush onto closing trains—a longstanding focus of the network’s passenger-safety campaigns. Tokyo’s subway operators, including Tokyo Metro and Toei, use a mix of mascots and bold graphic styles to discourage last-second boarding, which remains one of the most common causes of platform accidents and door malfunctions.

These posters are typically placed on or near platform screen doors, which have been installed progressively across the network since the early 2000s to reduce injuries and improve train-dwell consistency. The messaging reflects Japan’s broader public-transportation safety culture: preventing delays, protecting passengers, and maintaining precise headways in some of the most heavily used rail corridors in the world.

This particular design features a cartoon warning style common in Metro stations along lines such as the Marunouchi, Yamanote interchanges, and the Keisei connection points at Ueno and Nippori.

A weathered metal sign mounted on a brick wall warns “NO SMOKING BEYOND THIS POINT,” its paint cracked and dulled by decades of exposure. Signs like this were once common in milling and industrial facilities across Minneapolis, where airborne dust from grain or manufacturing posed a significant fire risk. The hand-lettered typography and aged surface reflect a bygone era of factory safety culture, preserving a small but telling fragment of the city’s industrial heritage.