In fact, some were so good I wondered why everyone was not doing the same thing. The answer, I suspect, is because ideas often struggle to find a path out of their locality and for all the talk of the world being smaller, there are still barriers of language and culture that stand in the way of innovation and ingenuity crossing borders.
Earlier in the year, Transport for London set about finding a way of quantifying how much travel in London could be made by foot or bike. They took data on all of the journeys Londoners made each day, stripped out those already walked or cycled and those that were too long, or involved carrying heavy tools and equipment, and a few other criteria.