You're on a smart motorway where the active traffic management (ATM) isn't in operation. When should you use the hard shoulder? You're on a smart motorway where the active traffic management (ATM) isn't in operation. When should you use the hard shoulder?

• Possible answers:

   
• A. To stop in an emergency
• B. To leave the motorway
• C. To stop when you're tired
• D. To join the motorway