I don't think building "private infrastructure" in the sense of streets on public ground would make any sense or ever be allowed. The company could just pay fo

I don't think building "private infrastructure" in the sense of streets on public ground would make any sense or ever be allowed. The company could just pay for the usage of the road (in some way) and the government makes sure the roads exist. Besides the bureaucratic overhead, I don't see why that couldn't work.