This is probably off-topic, but are they using different colors for male and female escalator users? Does it matter? They already have different graphics, but for some reason felt the need to make it really clear that there are different gendered people here, riding escalators? Very strange.

Also, it doesn't seem to address the "total time for the ride", the minimization of which is of course the reason why people want to walk in escalators. That's the egoistical reason, to minimize overall throughput is perhaps somewhat less interesting to each individual.

That said, optimizing the system as a whole for throughput is a good goal so perhaps it's time to change escalator culture!