Update November 2015:
VicRoads advice is that this practice is not legal
ie. You are not allowed to lane filter between traffic and an adjacent kerb.

Update January 2016:
Lane filtering, with some conditions, is now legal in Victoria.
Further details here: Victoria – Motorcycle Filtering

An Adam internet user# commented on my “Legal But Stupid” post about the motorcyclist pictured right.

If traffic is stopped and not turning, it’s called filtering why sit on a street backed up with parked with cages.

Never said it was illegal in this instance, but here are some of the reasons it’s stupid:

• overtaking on the left of a semi-trailer.
• there are trucks pulling out from the left
  (you can see one pictured)
• there was damn all gap on the left.
  It could be illegal

*

, but heck, aside from working as a motorcycle courier, I do not have legal expertise.  But there is

trafficlaw.com.au

.  Doing a

search over there

shows up the following possible offences:
• Improper overtaking or passing
• Turning or stopping without signalling

# – if you don’t use a real email address, you’re not going to get your comment approved.
* – offences taken from Victorian Road Safety (Drivers) Regulations 2009

Update November 2015:
VicRoads advice is that this practice is not legal
ie. You are not allowed to lane filter between traffic and an adjacent kerb.

Update January 2016:
Further details here: Victoria – Motorcycle Filtering

Saw this recently

From the Victorian Safety Road Rules 2009

141 No overtaking etc. to the left of a vehicle
(1) A driver (except the rider of a bicycle) must not
overtake a vehicle to the left of the vehicle
unless—
(a) the driver is driving on a multi-lane road and
the vehicle can be safely overtaken in a
marked lane to the left of the vehicle; or
(b) the vehicle is turning right, or making a
U-turn from the centre of the road, and is
giving a right change of direction signal; or
(c) the vehicle is stationary and it is safe to
overtake to the left of the vehicle.

I did some hairy things when I worked as a motorcycle courier, but I would never have been as stupid as that.