M4 repairs could delay opening of Olympic lane Delayed repair works on a damaged flyover, just west of M4 junction 2, are due to complete "within the next few days," the Highways Agency has said. However the agency said that the repairs may not be complete by next Monday, when the so-called M4 Games Lane between Heathrow and London is due to open. The lane is designed to shave time off the journey into London for visiting Olympic dignitaries and athletes. A Highways Agency spokesman said the lane will only open on Monday if the repairs are successful. If the route does not open as planned then an alternative route Olympic into London - along the A4 - will open instead, the spokesman said. Mike Penning, the road minister, said: "I share the frustration of motorists at the continued delay to the opening of the M4. However, let's be absolutely clear, safety must be paramount and I will not allow the road to be reopened until this repair work has been completed successfully. This is a very complex operation and it is not possible to predict precisely how long it will take. Edmund King, president of the AA, said: "I have been briefed personally by the Transport Secretary on the situation and have been assured that the Highways Agency is doing its utmost to make the road safe." The road has been shut since late last week.