Heidi Murphy has questioned Roads Safety Minister Melissa Horne on the toll costs in the West Gate Tunnel, as well as firefighter concerns.

Ms Horne along with Premier Jacinta Allan and Minister for Transport Infrastructure Gabrielle Williams publicly spoke today about the $10 billion project, which is set to open on Sunday.

“It won’t be perfect, people will potentially get lost in the network,” she told Heidi Murphy on 3AW Drive.

Press PLAY to hear all of the questions the 3AW host had for the roads safety minister

Images: Darrian Traynor/Getty, 3AW