The project includes a 500-metre tunnel from east of Jane Street to Mount Dennis Station, and is being delivered through a public-private partnership.

The company reported its fourth-quarter results on Feb. 14, posting a loss of US$153 million compared with a US$94 million loss a year earlier. 

The government says changes to the environmental assessment process will protect environmental standards while helping get shovels in the ground sooner.

Year over year, investment in building construction declined 6.6% to $229.1 billion in 2023.

Ontario's legislature will resume sitting this week with a flurry of activity.