On Wed, 02 Jan 2008 01:01:02 GMT, Richard J. wrote:

Holloway Road and Caledonian Road had been completely cleaned by
the 27th, Arsenal by the 29th - good work, TfL anti-graf squad.
No visible damage to the new (or old) tiles in any of the
stations. Speedy removal is the best defence.

Absolutely. So why is the Belle Isle area never cleaned up?

Where is Belle Isle? Is that the area around Barnsbury where the
CTRL portal is? Or am i thinking of something else?

Yes, between Gas Works and Copenhagen tunnels, I thought.

The reason is that Network Rail are far less efficient at dealing with
graffiti than Metronet and Tube Lines.

This is particularly evident along the Finchley Road to
Harrow-on-the-Hill route. The bridge supports on the Metronet side of
the tracks have no graffiti, while those on the Network Rail side are
covered in it.