The high-speed rail will eventually span approximately 1,000 kilometres from Toronto to Quebec City. It will reach speeds of up to 300 km/hour, cutting travel times by half. The government says the project will boost GDP by up to $35-billion, and will help build 63,000 homes along the route, create 51,000 new jobs over 10 years, and save 25 million tonnes of CO2 emissions. But critics expect the project to run over budget.