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Rail stations, whether in Japan or elsewhere, are also great places to see “nudge theory” at work. Pioneered by behavioral economist Richard Thaler, who was awarded the 2017 Nobel Memorial Prize for his work, and Harvard Law School professor Cass Sunstein, the theory posits that gentle nudges can subtly influence people towards decisions in their own (or society’s) best interests, such as signing up for private pension schemes or organ donation. In the U.K., there’s a government office devoted to the idea, the Behavioural Insights Team (or “nudge unit”), and their work often shows up in the transit realm.

In 2016, for instance, London Underground operator Transport for London partnered with the behavioral science department at the London School of Economics to develop ways of encouraging riders to queue on both sides of station escalators as a means of increasing their capacity in the capital’s Holborn Station. Among other measures, simple hand and footprints were also painted on each side of the “up” escalators. In Australia, researchers conducted an experiment with lighted directional arrows on signposts to improve flows of departing passengers. Using a camera system designed to recognize and distinguish brisk-walking businesspeople from dawdling tourists, for example—green arrows would flash to direct commuters in an efficient route towards the exit.

When it come to passenger manipulation, what sets the stations of Japan apart from their counterparts is both the ingenuity behind their nudges and the imperceptible manner in which they are implemented. Japan’s nudges reflect a higher order of thinking. The orderliness of society is taken as a given—Japanese commuters know how to queue on an escalator and can easily navigate the confusing, but wide-open, spaces of Tokyo’s rail stations without assistance. This allows rail operators to instead focus on deeper psychological manipulation.

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