Residents opposed to the WestConnex project are expected to pack the public gallery of Parliament House in Sydney on Thursday to listen to a debate on a petition to halt the $15.4 billion toll road.
Under State law, a parliamentary debate must be held if a petition with more than 10,000 signatures is received.
The debate will be followed by a rally outside Parliament, to be addressed by community campaigners and affected residents from across the project's 33 kilometre route.
"The fact that so many people from all over Sydney signed this petition reveals the rising community anger against this taxpayer-funded toll road," said WestCONnex Action Group spokeswoman Pauline Lockie.
Ms Lockie said contracts were being signed, hundreds of homes and businesses were being taken away, and millions of dollars in taxpayers' money was being spent before any planning approvals had been granted.
“NSW taxpayers are bearing all the risk if WestConnex fails, yet Premier Baird refuses to release the business case that supposedly justifies the huge gamble he's taking with our future," she said.
Will you be attending the debate?