Trucks are generally not permitted to park in urban streets for long periods of time.

The rules relating to heavy vehicles parking in urban streets are contained in a notice published in the Victoria Government Gazette, Periodical No. P 2 of 28 October 1999 (Road Rules - Victoria).

Clause 200 (2) and (3) states that:

(2) The driver of a heavy vehicle, or long vehicle, must not stop on a length of road in a built-up area for longer than one hour, unless the driver is permitted
     to stop on the length of road for longer than one hour by information on or with a traffic control device, or is permitted to do so by the council.

(3)  HEAVY VEHICLE - means, a vehicle with a GVM of 4.5 tonnes or more;
     LONG VEHICLE - means, a vehicle that, together with any load projection, is 7.5 metres long, or longer;
     ROAD - does not include a road related area, but includes any shoulder of the road.

In addition, GVM - (Gross Vehicle Mass) - means the maximum loaded mass of the vehicle as specified by the vehicle's manufacturer.

Also, Clause 208, (2) and (3) of the Road Rules - Victoria, states that:

(2) The driver must position the vehicle to face in the direction of travel of vehicles in the marked lane or line of traffic on, or next to, the part of the road where
     the driver parks.

(3) If the road is a two-way road, the driver must position the vehicle parallel, and as near as practicable, to the far left side of the road.