This is the SkyCycle plan. It is a bizarre concept that uses the empty channels above some train lines to build floating, bike-only cycle superhighways.

If it gets approved and built, it would create a 136 mile network of elevated cycle routes spanning the city of London. It would begin with a first phase linking east London to Liverpool Street Station.

Unfortunately, the cost for this is north of $300m, but seeing this should be a government project, it should be chump change. Hopefully it gets a go-ahead. The network should take 20 years to complete, of which by that time we may even have another mode of transportation. Bikes could be obsolete by then.

What do you think? [BBC]