HAS ANYONE looked carefully at how much motorway we effectively sterilise with our 'only- overtake-to-the-right' rule? And then examined how the rule breaks down in heavy traffic?

The Americans get by perfectly well without these 'lane rules' - and with lower speed limits too. Why can we not try out the American system before spending millions on digging up the countryside?

To those who argue that abolishing these rules would be dangerous I would say: 'only to those who change lanes without using their rearview mirrors or traffic indicators'. Better it became an offence - as it is in Germany]

Peter Lewis

Cardiff