Re: Under streets ?
Have you not seen the Chinese bus/tram which runs *over* streets
http://www.citylab.com/tech/2016/05/can-chinas-futuristic-straddling-bus-finally-become-a-reality/483953/
Have you not seen the Chinese bus/tram which runs *over* streets
http://www.citylab.com/tech/2016/05/can-chinas-futuristic-straddling-bus-finally-become-a-reality/483953/