Their observation that people check in at their home metro stations most is interesting. The exciting part is that they built a device to measure stimuli and bodily response. This chart correlates a ride on the Sokolnicheskaya Line, also known as the “red line,” and set to 11 when it comes to Stalinist Architecture. Look at the chart:
It’s not really a new idea, but I don’t think I’ve ever seen it applied to a subway system. The designers of the Washington Metro put a lot of thought into the sensory cues for riders, from the comfort levels in the cars, to the blinking lights that indicate a sudden blur of light and a darkening of the station.
They have some other ideas, which you can see in their presentation: