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Moveable barriers will be used for contraflows on the M20 in Kent to cut delays when there is disruption at the Channel ports. Roads minister Stephen Ladyman this week sanctioned the £12.6M move to improve Operation Stack, the police-led operation to deal freight traffic when the ports are closed. Under Operation Stack the M20 coastbound carriageway is closed between junctions 11 and 12 and lorries are 'stacked' on the M20. Light traffic is diverted, which leads to congestion on local roads. The barriers will stop this by providing a contraflow on the London-bound carriageway with two lanes in use in both directions.

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