The Big Move contains 62 rapid transit projects to be implemented across the Greater Toronto and Hamilton Area (GTHA). These rapid transit projects are to form a seamlessly integrated regional rapid transit network, which is the first priority action in the regional transportation plan (RTP). These projects form two long-term templates with 15 and 25 year horizons. These templates outline broad projects; specific details about technology, alignment, stations and service levels for each project are subsequently determined though a cost–benefit analysis, or an environmental assessment process.
Regional Express Rail is a project to improve GO Transit train service by adding all-day, two-way service to the Barrie line and the inner portions of the Kitchener line and the Stouffville line, and by increasing frequency of train service on various lines to as often as every 15 minutes on five of the corridors. This would be achieved with the full electrification of the Lakeshore East line and the Barrie line and the electrification of the inner portions of the Lakeshore West line, the Kitchener line, the Barrie line and the Stouffville line.
On September 28, 2012, Metrolinx signed a master agreement with the Toronto Transit Commission (TTC) to implement four new light rail transit lines in Toronto:
These projects were also identified in Transit City, a rapid transit plan announced by former Toronto Mayor David Miller and TTC Chair Adam Giambrone on March 16, 2007. After $4 billion in provincial funding for Transit City from the Ontario government was deferred, the projects were rolled into a "5 in 10" plan, referring to goal of completing the four LRT lines and a BRT line in ten years. The plan also included the purchase of 182 light rail vehicles from Bombardier Transportation.