Precision timing

Annie Mole on Going Underground’s Blog (unofficial London Underground blog) draws attention to an interactive map that lets you calculate your journey and time taken to travel between any two points in London, via clicking on the start and end points.  I tried a random journey from somewhere called Goswell Road to somewhere called Albany Road. After I clicked, the instructions said: "Walk for 8 mins 26 seconds to the Barbican station" and carried on in that vein until I reached my destination 55 mins, 9 seconds later. Fun, but Annie says she wouldn’t rely on it (it told her to change at a station at a time she knows it is closed) and I am sure she is right. I suppose Google has to do something while Blogger isn’t working (stop creating things and fix it, fix it, please!)