Stolen from my favourite Facebook group (warning: not really safe for work).
Literally my thoughts as I try to navigate around Brisbane. A trip from the west to the airport can involve up to half a dozen tolls if you do it wrong.
It's easy to work it out yourself.
Road funding is 8.3 billion from councils per year plus 5.6 billion (federal maintenance) +15 billion (federal projects) plus whatever the states spend. Plus there are other parts of road funding that come from other budgets but it's well over 30 billion all up. The number of registered cars in Australia is 21 million. So over $1500 per car per year for road expenditure.
Rego (excluding the insurance component which doesn't go towards roads) is about $200 depending on the state. So the rest is coming from general revenue.
Note that they never claimed rego paid for all the road costs. It's just something that's commonly assumed.