Walking on an escalator is usually not very efficient thing - you cut throughput in half and will maybe save 30 to 60 seconds walking down, and only if you'll a

Walking on an escalator is usually not very efficient thing - you cut throughput in half and will maybe save 30 to 60 seconds walking down, and only if you'll actually catch a train in that period. Walking upwards is even less efficient - saving 10-20 seconds by inconveniencing hundreds of people? Really? All this is comparable to people crossing streets on red light and afterwards walking slower than me crossing on green.