The posters are either relentlessly peppy--"Let's go to work as one man for road maintenance!"

FORBES: Dictator Chic

The CSA collects regular payments from non-resident parents, but by October 2006 one in four applications for maintenance - received by the agency since 2003 - were still waiting to be cleared.

BBC: Parents and staff suffered during the CSA reforms, MPs say

The same drug improves survival by one month when used as maintenance therapy for lung cancer.

FORBES: Drawing The Line On Overpriced Cancer Drugs

What SBC questioned was why oil and gas companies shut down their turbines for maintenance roughly twice a year while airlines only maintained their turbines one every couple years.

FORBES: Energy

I'd have to build up a little bit and all that lot, but you know, it's like, and here's one I really want to go for: caretaker, cleaner job, maintenance, and all that.

BBC: Programme transcript

It also pointed out that, with less than half of the company's operations and maintenance staff in the RMT, and 38 of these voting for a strike, less than one in five supported the action.

BBC: NEWS | UK | Network Rail staff vote to strike

Some of the larger rapid transit systems have a more interconnected web of tracks and tunnels, so if maintenance is happening in one tunnel, the trains can be rerouted in a different tunnel (for example, NY MTA).

FORBES: Why Does BART Need To Do Nightly Maintenance?