Motorway lane gain sign
A blue sign with a diagram showing two lanes on the motorway being joined by one lane from the left.
Two lanes of traffic fresh from the M4 joins from our left, making a three-lane motorway bound for the south west.
A blue sign with a diagram showing two lanes on the motorway being joined by one lane from the left.
Two lanes of traffic fresh from the M4 joins from our left, making a three-lane motorway bound for the south west.