Bar none
The old travelator problem, I agree its b**dy annoying after a long flight and I am able bodied, what it must be like for those that struggle to walk, I know there are wheelchairs, but many are too proud to ask for help.
Are they deliberately switched off for conservation or are they broke ?
Now heres one to test the combined wealth of knowledge of pprune,
How much does a moving walkway cost to run per hour ??