A TGV high-speed train is pictured at the Saint-Charles train station, in Marseille, southern France, Monday, May 14, 2018. French train traffic is widely disrupted as rail workers prepare to hold a union vote on the government's plan to revamp the national railway company SNCF.

The Liberal government launched a six-year, $3.9-billion design and development plan Wednesday that Prime Minister Justin Trudeau says will eventually connect Quebec City and Toronto with a high-speed rail line.