Work has started on the state government’s $716 million, 32 kilometre Thornlie-Cockburn Link, but the Liberal opposition claims the Metronet project is two years behind schedule and its cost is blowing out.

Work has started on the state government’s $716 million, 32 kilometre Thornlie-Cockburn Link, but the Liberal opposition claims the Metronet project is two years behind schedule and its cost is blowing out.