The Roe 8 controversy is shaping up to be one of the defining issues of March's Western Australian state election. It has split the major parties and attracted ongoing and acrimonious protest, with police being accused of using heavy-handed tactics in dispersing protesters. But what does the project actually involve, and what has got its opponents so riled? 

What is the Roe 8 project?

"Roe 8" refers to a $450 million extension of the Roe highway from its current end at Kwinana Freeway in Jandakot to Stock Road in Coolbellup, roughly 10 kilometres south-east of Fremantle.