The Monorail.

Sydney has a forgotten transport system. When the Monorail was built over two decades ago it was greeted with scorn and vituperation by a small clique who demanded that it be torn down. There are still plaintive squawks from this group from time to time.
The Monorail has proven itself as a reliable transport system linking Darling Harbour with the theatre district of the CBD. It glides silently above city streets and it's history is one of safety and reliability. Why - therefore - has this city with such a traffic problem and need for a safe way to move people not grasped this idea and extended the Monorail to service the entire inner city ?
Countless ideas have been bounced off the public, including banning cars from the CBD to running light rail in competition with cars through city streets - and yet the answer would be apparent to any of those planners who cared to stop looking at the ground and elevated their gaze above.
The problem with Sydney is that it has a destination arrival centre at Central station - and lacks a system to distribute those travellers within the city. Any plan to move people on the ground immediately faces the problem of finding space - and all space is presently occupied with people, cars and buses.
The rail loop does a good job placing people on the CBD fringes, but the real need is to move them from those stations to where they really need to go.
Perhaps now is the time for those planners to take another long, hard look at the Monorail and show a bit of vision. We may lack road space - but the one thing we have plenty of is air space. Perhaps now is the time to life our vision !