An accident on the motorway near Reading combined with the new ‘priority’ lane to create a queue that at one point stretched as far back as the A34 – 32 miles away.

The VIP Games lanes – set to come into force in central London on July 25 as the Olympics approach – are designed to whisk London 2012 athletes, officials and sponsors to Olympics venues ahead of other traffic.

Motorists who are not permitted to use Games lanes will be fined £130 if they use them.

Experts have warned that the slightest accident on London’s roads while the Games lanes are in force could bring the whole capital to a standstill – a claim reinforced by today’s 32-mile-long queue.

However, sport minister Hugh Robertson said authorities would lift restrictions on Games lanes should a gridlock occur.

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