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Incorrect lane markings at Thickthorn Interchange when entering roundabout from A47 SB for A11 WB.

Reported via mobile in the Road markings (NH) category anonymously at 13:11, Mon 29 August 2022

Sent to National Highways less than a minute later. FixMyStreet ref: 3787637.

***Noticed whilst trying to join the A11 WB from the A47 SB***. The slip road consists of 3 lanes. From left to right, lane 1 is down as ‘Nor’ (Norwich), lane 2 is down as ‘Thet’ (Thetford) and lane 3 is also down as ‘Thet’. If you’re travelling in lane 2 from the slip road onto the roundabout, it puts you into a lane which is down as ‘GYAR’ (Great Yarmouth). If you’re travelling in lane 3 from the slip road onto the roundabout, it puts you into a lane which is down as ‘GYAR & THET). So according to the road markings on the slip road, you can use both lanes 2 & 3 for Thetford, when in-fact this is completely incorrect. Further round the roundabout, a new lane for ‘THET’ becomes available. This is positioned next to the lane you would be in if you joined the roundabout from the slip road lane 3 ‘THET’. At no point in lane 2 from the A47 SB slip road can you take the A11 WB. If you’ve come from the slip road in 2 lane you need to actively change lanes to be in the correct lane for the A11 WB. I can’t comment how long these road markings have been incorrect for, I only noticed recently when in the area.

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  • Thank you for your report concerning the lane markings on the A11 roundabout.

    We're aware of the issue and we expect this to be picked up during a major junction improvement scheme that is due to take place within the next 18 months.

    Thank you again for contacting us. If you need more information about this, please feel free to contact our Customer Contact Centre on 0300 123 500 or by email at

    Kind regards

    National Highway

    State changed to: Closed

    Posted anonymously at 13:26, Tue 6 September 2022

This report is now closed to updates from the public. You can make a new report in the same location.