Voters will have to wait until after the state election to try out Sydney’s new metro train line.

The $8.3-billion north-west metro has completed its first test run along the full 36-kilometre route from Rouse Hill to Chatswood.

Australia’s first driverless trains are being touted as quicker, safer and more reliable.

Transport Minister Andrew Constance tells Luke Grant the project is half a billion dollars under budget but won’t be open to the public until about May.

“It does take a number of months to commission a train, get it tested, make sure it’s fully safe for commuters to ride.

“We said that we’d have it open in the middle of the year and it’ll be a couple months ahead of that,” says the Minister.

A huge and very exciting day for Sydney Metro: Australia’s first driverless metro train has completed its first journey along the entire length of the new Metro Northwest railway line.

The project is just months from opening – on time and at least $500 million under budget. pic.twitter.com/M5B0A7WWGk

— Andrew Constance MP (@AndrewConstance) January 14, 2019

The new line has the capacity for trains to arrive every two minutes but will start out conservatively.

“It passed with flying colours in terms of its first test.

“We’re going to start the system with a train every four minutes.”

Click PLAY below for the full interview