But, of course, as nothing prevents long-distance through traffic from continuing to use the A5, despite its official “bypassing” by the A41, it is generally clogged with lorries, buses, private cars and delivery vehicles . …. Strangely , though, some years back, Kilburn High Road was actually completely closed to traffic for about six months (I may remember this wrongly, but it was for a substantial length of time) for reconstruction of the bridge across the West Coast Main Line.