There is a delightful movie called Who Framed Roger Rabbit in which the villain is attempting just this: buying trolley lines to build "highways, as far as the eye can see".
It was also one of the first movies to combine significant CGI with real-world interaction.
The was no CGI in Who Framed Roger Rabbit. It was all traditional animation, hand-drawn on celluloid sheets.
It wouldn't be until Terminator 2 and Jurassic Park that CGI really broke through as a technique that could be used in conjunction with live-action.