GO-Urban was a planned mass transit project for Greater Toronto to be operated by GO Transit. The system envisioned the use of automated guideway transit vehicles set up in hydro corridors and other unused parcels of land to provide rapid transit services without the expense of constructing tunnels. GO-Urban would serve high-density areas in the downtown core, but also be able to accelerate to high speed between distant stations in the outskirts of the city. Similar deployments were planned for Hamilton and Ottawa.