Yep I've sent him a pm to get his email so I can email him a diagram.
Thanks I got the diagram, that helps a lot. It is still not clear if the tipper lorry was going south down Weston st before the crash or turned left out of Snowsfield. I suspect it was coming down Weston st. I don't think it was loaded, or maybe only a partial load. There was a short clip of the lorry, after it had been moved and was about to be towed away on ITV news last night, about 7mins into the clip. http://www.itv.com/london/fullprogramme/ .