Yes and closing off the roundabout exit would do that just as efficiently and effectively and much cheaper and so more likely Since the closing of St. Johns lane to normal traffic, there's no real need to turn right out of the tunnel anymore as heading South down Whitechapel - you can only go right up Crosshall st anyway and onto Dale St so you might as well go left when exiting the tunnel and onto Dale st that way. The only other reason you'd go up the bottom part of Crosshall st is to turn right back onto Victoria st to enter Manchester st for the car parking (otherwise you'd be just doubling back on yourself to go past the tunnel entrance again. I think London Road and Dale st need bringing back into the city centre as they've been dead for years.