Built-up areas
The speed limit in a built-up area is 50 kilometres per hour (km/h) unless signed otherwise.  A built-up area is where there are buildings and/or houses next to the road or there is street lighting at intervals not over 100 metres apart for a distance of 500 metres or more.

Rural areas
The speed limit outside built-up areas in Victoria is 100 km/h unless signs tell you otherwise.  Some main streets in rural town centres have 50 km/h speed limits and, many rural railway level crossings have 80 km/h speed limits.

School speed limits
Static or electronic variable signs are used to alert drivers to lower their speed around schools.  For detailed information see School speed zones.

Speed limited areas
There are other signs which designate speed limits for whole areas (networks of roads) which have a sign on each road into the area.

Shared zones
Shared zones have a speed limit of 10 km/h or as indicated on the shared zone sign.

Excessive speed and hooning
Hoon driving causes a vehicle to travel at very high speed, or in a manner that produces burnouts and doughnuts.  Dangerous driving, careless driving, failure to have proper control of the vehicle and causing the vehicle to make excessive noise or smoke are also considered hoon-related offences if they are committed in circumstances involving the improper use of a motor vehicle.  Under the Road Safety Act 1986 Victoria Police is authorised to impound or immobilise vehicles for 48 hours when members reasonably believe that an individual has committed a hoon related offence.