When the commuter rail was put in, it used existing tracks to mitigate the environmental impact, so you can enjoy a guilt - free ride to wherever you're going. (effectivecoverage.com)
While the first largely featured existing tracks, this seems to have been created as a set list for a jail gig. (premierchristianity.com)
A large existing tracking station at each of these sites has also been converted to an extremely sensitive radio telescope for simultaneous observations with the satellite. (public.nrao.edu)