There are two types of smart motorway in the UK: The first is where the hard shoulder is opened to traffic when it is busy, and the second is where the hard shoulder is open all the time.
On Facebook, Justyna Machaj posted: "I use the M6 every day and I don't find it confusing at all - it's very convenient when it is busy and the hard shoulder can be used as an additional lane."
But Mark Brindley wrote: "Hard shoulder should NEVER been taken away. In busy times we need it for what they were designed for emergency use only."
Matthew Ashton added: "Not saying I'd of died but the hard shoulder saved my life when I had a bad crash on the M6 as the emergency services could attend quicker.".
Paul Snape typed: "Smart motorways are fine until you break down and are then stranded in lane one, which used to be a hard shoulder. Until the cameras notice you and chuck the lane closure in, you’re incredibly vulnerable."