> If this idea were viable, someone somewhere in the world would have already done it. Hong Kong does this in the downtown area. It’s viable because of the ver

> If this idea were viable, someone somewhere in the world would have already done it. Hong Kong does this in the downtown area. It’s viable because of the very high population density and prevalence of foot traffic. https://duckduckgo.com/?q=hong+kong+pedestrian+bridge&iax=images&ia=images&iaf=size%3ALarge https://duckduckgo.com/?q=hong+kong+pedestrian+bridge&iax=im...