Motorway sliproad lane gain sign
A blue sign with a diagram showing two lanes on the sliproad joining three lanes on the motorway.
The sliproad adds two lanes to the M4 eastbound, making a five-lane motorway towards London.
A blue sign with a diagram showing two lanes on the sliproad joining three lanes on the motorway.
The sliproad adds two lanes to the M4 eastbound, making a five-lane motorway towards London.