[Gllug] Oyster cards vulnerable?

[Rob Crowther]

Tethys wrote:
> 
> With a
> paper ticket, you could walk through the barriers without breaking stride.
> With Oyster, you have to stop and wait for the card to be recognised. 

I find that I can walk through a barrier without breaking stride using 
Oyster these days, though it wasn't the case when they first came out. 
I wonder if the speed is somewhat station dependent, a latency factor 
back to the server?  It also wasn't the case for a few months after I 
sat on my card wrong and bent it in the middle...

> Watching people wave their Oyster card repeatedly
> over the reader in a vain attempt to get it to scan 

Is there some technical/physical reason why wiggling and waving the card 
ought to make it easier to scan, rather than just holding it still on 
the scanner?

Rob

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