People notice people, not signs

It's as true in advertising as it is on the High Street or the motorway - there are so many messages being thrown at us that it's not surprising we filter almost all of them out. So i thought this was a novel approach from TFL at Victoria Station. If no one takes any notice of the signs, but they do take a bit more notice of people instructing them what to do, then why not have a lifesize sign of a person with a sign, telling me what to do? Looks bizarre, gets your attention, works for me.