On a motorway, what are the right and middle lanes used for?
to overtake cars
What does red studs indicate?
between the hard shoulder and carriageway
What do amber studs indicate?
between the edge of the carriageway and the central reservation
What do green suds indicate?
between the carriageway and slip roads
What do fluorescent green/yellow indicate?
contraflow system and roadworks
when should you stop on a motorway?
How far apart are emergencey telephones?
normally at one mile intervals