The advance warning sign is not a traffic sign and most motorists would not notice it. It is yet another example of council stupidity. What is required is a sign showing the layout ahead, with the bus lane sign shown on it for the second exit of the mini-roundabout, to indicate the motorist must drive right, (3rd exit), or left, (1st exit) but not straight ahead, (2nd exit). Pretty simple, one would think, but of course if they did this the PCN cash flow would cease.