Sky Tunnels of Toronto

As the above text describes – and as you can read here – architect Chris Hardwicke has recently proposed a network of elevated bike trails – glass tunnels soaring above Toronto, in a "dynamic air circulation loop" – that would allow city residents to travel by bicycle at speeds of up to 40kph.
It would look like this:


Two thoughts: 1) the Tour de France of the future will be a Tour de Sky Tunnels of Toronto; and 2) why not build a moving version, nomadic, hinged, flexible, a kind of glass octopus of dynamic sky-routes, accessible only by pedestrians, going nowhere except into itself, knot-like, a mobile marathon route torquing above the city at night, reflective, looping over Roncesvalles, utopian junctions in space?

(Spotted at Archinect).