Interesting. For the cyclists out there, would you pay out of pocket for a bi-directional elevated bike/walk-run track, with access from every street intersection, Japanese-style underground bike garages and automatically-cleaning showers/toilets at public transit intersections? If so, how much? I would, at $0.25-0.50 per mile, $0.25 per hour storage, and $2 per use of showers. I don't know if that would pencil out even in heavy cyclist commuter traffic, though.
I envision a high-tech track that uses redox batteries around its foundations, replaceable solar panels around the sides, is very brightly-lit, uses every 10 meters PTZ lenses on fiber optics leading back to a centralized, multiplexed bank of 2K and 4K video cameras backed by a deep-learning vision system, and easily-accessible emergency boxes every 20 meters to put female customers at ease. Emergency boxes vend bike repair kits (tire, chain, hex wrench, etc.), vend first aid kits, have an omnidirectional microphone listening for calls for aid, and of course a Big Red Button. Water is captured, filtered and stored for a cleaning robot to use later to maintain the track, solar panels, and awnings. Clear awnings automatically come out of housings, then raise and lower to shield from excessively-hot sun and inclement weather. Cleaning robot runs along a high-speed rail hanging on outside of track, multi-purposed to perform simpler replacement-style maintenance duties (replace vending supplies, replace awning, etc.).