On 14/11/2011 20:10, Simon Weaseltemper wrote:
On 14/11/2011 19:14, JNugent wrote:
On 14/11/2011 17:16, Simon Weaseltemper wrote:

It is covered in motorcycle training. On motorways, the legality of it
has
always been debatable but the police “allow” it so long as is done
with care.
In traffic, the things to watch for are unannounced, all of a sudden
right
turns or u-turns from cars. Traffic pulling out from the left, (ie
they are
turning right but will be looking for traffic to their left and not
expecting
a two wheeled vehicle coming up on the outside). Oncoming traffic
(obviously). Doors, it is rare that a driver will throw open their
door in
traffic but it does happen. Fag ends are a particular problem when
they get
thrown out of the window but when they are, and they just miss you if you
shout “thanks” straight away as you pass the car, it freaks the hell
out of
the driver. PS chucking fag ends out of cars is illegal.
Pedal cyclists filtering on the left have additional problems such as
oncoming traffic turning right and the traffic they are passing
turning left.
Getting doored by a passenger getting out is a very real problem.
Don’t be
fooled by the provision of a cycle lane, a cycle lane in this instance
is a
very dangerous place. Then if you do get to the front, you need to get in
front of the car in front to make sure they see you. If it is a larger
vehicle, especially with a high cab, DON’T DO IT, wait behind. For
others it
was the last thing they did. Don’t be fooled by cycle lanes either, they
offer no protection.
And…
Never ever ever (no never) filter on the left if there are railings,
even if
there is a cycle lane. If the traffic moves left or turns left you
will die
by crushing.

All well and good.

Which Road Traffic Act defines it?

Probably none

Where is it mentioned in the Highway Code?

Probably nowhere, it’s the kind of stuff you need to learn to stay alive.

So it's unofficial, "folk" advice and nobody else is obliged to take the
slightest notice of it?