It's simply not possible for many people in London to go to work, but avoid public transport. I couldn't do it. I'd have to take a commuter train. I could then walk for 30 mins to my office in the city, but if it was pissing down then my alternative is a bus or the waterloo and city line. I'm lucky, i don't need to go to the office. There are many others without that option - as is proven every time the RMT goes on strike and thousands of commuters queue up for 2 hours just to get to work.