The UK’s Independent newspaper has an article about cycling in London (link). It says that “The mayor of London has announced a billion-pound plan to revolutionise cycling in the capital in what could be seen as a model for urban transport across Britain”.
On a daily cycling commute to & from work in London, my priorities rank safety above speed or journey time. Yet with little exertion, not trying too hard, I still rate better than the 9 mph car average.
So travelling by bike shouldn’t take longer than by car. Good if London can pull it off, although I would be worried about safety – and also interested to see if the city’s bicycle facilities are designed for standard two-wheel bikes or for a wider range of “design vehicles”.