Britain's most dangerous roads
The police watchdog says a reduction in dedicated traffic officers has left British roads more dangerous.
The fatality rate has risen by five per cent - the first significant rise in 40 years.
BBC Panorama has investigated the roads that kill a jumbo jet's worth of people every three months.
UK viewers can watch Panorama: Britain's Killer Roads? on 17 January on BBC One at 19:30 GMT, or on iPlayer afterwards.